./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 38b53e6a 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_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/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_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 17:26:09,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:26:09,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:26:09,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:26:09,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:26:09,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:26:09,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:26:09,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:26:09,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:26:09,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:26:09,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:26:09,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:26:09,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:26:09,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:26:09,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:26:09,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:26:09,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:26:09,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:26:09,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:26:09,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:26:09,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:26:09,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:26:09,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:26:09,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:26:09,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:26:09,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:26:09,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:26:09,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:26:09,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:26:09,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:26:09,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:26:09,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:26:09,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:26:09,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:26:09,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:26:09,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:26:09,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:26:09,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:26:09,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:26:09,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:26:09,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:26:09,907 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:26:09,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:26:09,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:26:09,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:26:09,945 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:26:09,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:26:09,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:26:09,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:26:09,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:26:09,947 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:26:09,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:26:09,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:26:09,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:26:09,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:26:09,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:26:09,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:26:09,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:26:09,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:26:09,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:26:09,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:26:09,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:26:09,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:26:09,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:26:09,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:26:09,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:26:09,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:26:09,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:26:09,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:26:09,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:26:09,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:26:09,952 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:26:09,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:26:09,953 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2022-11-25 17:26:10,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:26:10,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:26:10,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:26:10,257 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:26:10,257 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:26:10,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-11-25 17:26:13,265 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:26:13,835 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:26:13,835 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-11-25 17:26:13,873 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/data/b44d18cb6/ba2066d9026a4fd797b07aa9c1c55cb9/FLAGc86065f14 [2022-11-25 17:26:13,895 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/data/b44d18cb6/ba2066d9026a4fd797b07aa9c1c55cb9 [2022-11-25 17:26:13,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:26:13,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:26:13,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:26:13,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:26:13,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:26:13,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:26:13" (1/1) ... [2022-11-25 17:26:13,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380009b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:13, skipping insertion in model container [2022-11-25 17:26:13,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:26:13" (1/1) ... [2022-11-25 17:26:13,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:26:14,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:26:14,299 WARN L237 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_b980d764-1b6e-4310-848d-5c1640be2a44/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-11-25 17:26:14,309 WARN L237 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_b980d764-1b6e-4310-848d-5c1640be2a44/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-11-25 17:26:15,462 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:15,469 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,469 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,470 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,471 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,473 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,476 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:15,488 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,488 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:15,489 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,491 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,492 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,494 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,495 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:15,496 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,497 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,497 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:15,598 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:26:15,599 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:26:15,600 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:26:15,606 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 17:26:15,608 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 17:26:15,609 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 17:26:16,013 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 17:26:16,025 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 17:26:16,027 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 17:26:16,028 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 17:26:16,029 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 17:26:16,035 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 17:26:16,036 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 17:26:16,037 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 17:26:16,037 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 17:26:16,038 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 17:26:16,040 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 17:26:16,280 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 17:26:16,327 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,330 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,334 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,340 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,342 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,350 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,361 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,372 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,373 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,374 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,374 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,375 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,434 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 17:26:16,452 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,453 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,453 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,453 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,454 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,454 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,455 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,455 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 17:26:16,456 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,456 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,457 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,457 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,457 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,458 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,461 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,462 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,462 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,462 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,466 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,466 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,481 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,481 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:26:16,523 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:26:16,536 WARN L237 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_b980d764-1b6e-4310-848d-5c1640be2a44/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-11-25 17:26:16,537 WARN L237 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_b980d764-1b6e-4310-848d-5c1640be2a44/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-11-25 17:26:16,568 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,570 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,570 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,570 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,571 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,572 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,573 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,577 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,578 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,578 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,579 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,579 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,580 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,581 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,581 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,581 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,582 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,588 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:26:16,590 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:26:16,591 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:26:16,594 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 17:26:16,596 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 17:26:16,597 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 17:26:16,683 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 17:26:16,687 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 17:26:16,688 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 17:26:16,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 17:26:16,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 17:26:16,692 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 17:26:16,695 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 17:26:16,697 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 17:26:16,698 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 17:26:16,698 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 17:26:16,699 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 17:26:16,722 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 17:26:16,747 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,748 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,751 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,752 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,754 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,755 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,757 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,758 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,758 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,759 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,759 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,759 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 17:26:16,790 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 17:26:16,794 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,795 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,796 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,796 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,796 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,797 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,798 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,798 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 17:26:16,798 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,799 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,799 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,799 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,799 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,800 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,800 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,801 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,801 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,801 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,803 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,804 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,812 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,812 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,813 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:26:16,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:26:17,104 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:26:17,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17 WrapperNode [2022-11-25 17:26:17,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:26:17,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:26:17,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:26:17,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:26:17,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,250 INFO L138 Inliner]: procedures = 697, calls = 1878, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1162 [2022-11-25 17:26:17,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:26:17,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:26:17,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:26:17,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:26:17,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,364 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:26:17,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:26:17,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:26:17,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:26:17,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (1/1) ... [2022-11-25 17:26:17,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:26:17,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:17,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:26:17,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:26:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-25 17:26:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-25 17:26:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2022-11-25 17:26:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2022-11-25 17:26:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-25 17:26:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-25 17:26:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:26:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-25 17:26:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-25 17:26:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-25 17:26:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-25 17:26:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 17:26:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 17:26:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-25 17:26:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-25 17:26:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-25 17:26:17,479 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-25 17:26:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:26:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 17:26:17,480 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 17:26:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 17:26:17,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 17:26:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:26:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:26:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:26:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-25 17:26:17,481 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-25 17:26:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-25 17:26:17,482 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-25 17:26:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:26:17,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:26:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 17:26:17,483 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 17:26:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 17:26:17,483 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 17:26:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-25 17:26:17,483 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-25 17:26:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-25 17:26:17,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-25 17:26:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-25 17:26:17,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-25 17:26:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-25 17:26:17,484 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-25 17:26:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 17:26:17,485 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 17:26:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:26:17,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:26:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-25 17:26:17,487 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-25 17:26:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-11-25 17:26:17,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-11-25 17:26:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-11-25 17:26:17,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-11-25 17:26:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:26:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-25 17:26:17,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-25 17:26:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:26:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:26:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-25 17:26:17,489 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-25 17:26:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 17:26:17,489 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 17:26:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 17:26:17,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 17:26:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-25 17:26:17,490 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-25 17:26:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:26:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-25 17:26:17,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-25 17:26:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-11-25 17:26:17,491 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-11-25 17:26:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 17:26:17,491 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 17:26:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 17:26:17,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 17:26:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:26:17,935 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:26:17,938 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:26:19,617 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:26:19,635 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:26:19,635 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-25 17:26:19,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:26:19 BoogieIcfgContainer [2022-11-25 17:26:19,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:26:19,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:26:19,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:26:19,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:26:19,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:26:13" (1/3) ... [2022-11-25 17:26:19,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d7e9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:26:19, skipping insertion in model container [2022-11-25 17:26:19,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:26:17" (2/3) ... [2022-11-25 17:26:19,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d7e9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:26:19, skipping insertion in model container [2022-11-25 17:26:19,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:26:19" (3/3) ... [2022-11-25 17:26:19,647 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2022-11-25 17:26:19,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:26:19,667 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:26:19,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:26:19,775 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;@22a9b275, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:26:19,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:26:19,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 537 states, 307 states have (on average 1.247557003257329) internal successors, (383), 310 states have internal predecessors, (383), 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) [2022-11-25 17:26:19,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-25 17:26:19,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:19,818 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] [2022-11-25 17:26:19,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:19,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:19,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2064741935, now seen corresponding path program 1 times [2022-11-25 17:26:19,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:19,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073529660] [2022-11-25 17:26:19,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:19,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:26:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:26:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:26:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 17:26:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:26:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:26:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 17:26:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:26:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:26:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:26:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 17:26:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:26:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:26:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 17:26:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 17:26:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 17:26:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:26:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 17:26:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:26:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 17:26:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 17:26:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:26:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:20,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-25 17:26:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:21,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-25 17:26:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-25 17:26:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:21,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-25 17:26:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-11-25 17:26:21,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:21,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073529660] [2022-11-25 17:26:21,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073529660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:21,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:21,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:26:21,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984187849] [2022-11-25 17:26:21,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:21,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:26:21,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:21,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:26:21,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:26:21,118 INFO L87 Difference]: Start difference. First operand has 537 states, 307 states have (on average 1.247557003257329) internal successors, (383), 310 states have internal predecessors, (383), 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) [2022-11-25 17:26:23,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:23,478 INFO L93 Difference]: Finished difference Result 1219 states and 2024 transitions. [2022-11-25 17:26:23,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:26:23,481 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 [2022-11-25 17:26:23,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:23,499 INFO L225 Difference]: With dead ends: 1219 [2022-11-25 17:26:23,499 INFO L226 Difference]: Without dead ends: 688 [2022-11-25 17:26:23,514 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 [2022-11-25 17:26:23,517 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 337 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:23,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1167 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 17:26:23,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-11-25 17:26:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 530. [2022-11-25 17:26:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 301 states have (on average 1.2292358803986712) internal successors, (370), 303 states have internal predecessors, (370), 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) [2022-11-25 17:26:23,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 760 transitions. [2022-11-25 17:26:23,753 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 760 transitions. Word has length 167 [2022-11-25 17:26:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:23,753 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 760 transitions. [2022-11-25 17:26:23,754 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) [2022-11-25 17:26:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 760 transitions. [2022-11-25 17:26:23,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-25 17:26:23,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:23,760 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] [2022-11-25 17:26:23,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:26:23,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:23,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:23,761 INFO L85 PathProgramCache]: Analyzing trace with hash 374832211, now seen corresponding path program 1 times [2022-11-25 17:26:23,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:23,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940487319] [2022-11-25 17:26:23,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:26:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:26:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:26:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 17:26:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:26:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:26:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 17:26:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:26:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:26:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:26:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 17:26:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:26:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:26:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 17:26:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 17:26:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 17:26:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:26:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 17:26:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:26:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 17:26:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 17:26:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:26:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-25 17:26:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-25 17:26:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-25 17:26:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-25 17:26:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-25 17:26:24,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:24,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940487319] [2022-11-25 17:26:24,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940487319] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:26:24,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006013674] [2022-11-25 17:26:24,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:24,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:24,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:24,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:24,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:26:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:25,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2434 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:26:25,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-25 17:26:25,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:25,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006013674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:25,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:26:25,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-25 17:26:25,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825448590] [2022-11-25 17:26:25,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:25,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:26:25,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:25,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:26:25,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:26:25,578 INFO L87 Difference]: Start difference. First operand 530 states and 760 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) [2022-11-25 17:26:26,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:26,030 INFO L93 Difference]: Finished difference Result 1029 states and 1488 transitions. [2022-11-25 17:26:26,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:26:26,031 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 [2022-11-25 17:26:26,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:26,045 INFO L225 Difference]: With dead ends: 1029 [2022-11-25 17:26:26,046 INFO L226 Difference]: Without dead ends: 532 [2022-11-25 17:26:26,049 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 [2022-11-25 17:26:26,051 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 786 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:26,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2651 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:26:26,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-11-25 17:26:26,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2022-11-25 17:26:26,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 302 states have (on average 1.228476821192053) internal successors, (371), 305 states have internal predecessors, (371), 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) [2022-11-25 17:26:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 771 transitions. [2022-11-25 17:26:26,120 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 771 transitions. Word has length 167 [2022-11-25 17:26:26,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:26,120 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 771 transitions. [2022-11-25 17:26:26,121 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) [2022-11-25 17:26:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 771 transitions. [2022-11-25 17:26:26,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-25 17:26:26,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:26,123 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] [2022-11-25 17:26:26,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:26,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:26,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:26,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:26,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1919571972, now seen corresponding path program 1 times [2022-11-25 17:26:26,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:26,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674227419] [2022-11-25 17:26:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:26,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:26:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:26:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:26,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:26:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 17:26:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:26,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:26:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:26,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:26:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 17:26:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:26:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 17:26:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:26:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:26:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:26:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:26:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 17:26:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:26:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 17:26:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 17:26:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 17:26:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 17:26:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:26:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 17:26:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-25 17:26:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-25 17:26:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:26:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 17:26:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:26:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-25 17:26:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-11-25 17:26:27,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:27,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674227419] [2022-11-25 17:26:27,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674227419] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:26:27,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739103528] [2022-11-25 17:26:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:27,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:27,317 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:27,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:26:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:27,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:26:27,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-25 17:26:28,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:28,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739103528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:28,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:26:28,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-11-25 17:26:28,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917100536] [2022-11-25 17:26:28,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:28,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:26:28,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:28,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:26:28,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:26:28,100 INFO L87 Difference]: Start difference. First operand 532 states and 771 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) [2022-11-25 17:26:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:28,956 INFO L93 Difference]: Finished difference Result 1052 states and 1568 transitions. [2022-11-25 17:26:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:26:28,957 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 [2022-11-25 17:26:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:28,962 INFO L225 Difference]: With dead ends: 1052 [2022-11-25 17:26:28,962 INFO L226 Difference]: Without dead ends: 553 [2022-11-25 17:26:28,965 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 [2022-11-25 17:26:28,966 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 827 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 3765 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 [2022-11-25 17:26:28,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 3765 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:26:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-25 17:26:29,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 551. [2022-11-25 17:26:29,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 318 states have (on average 1.2358490566037736) internal successors, (393), 321 states have internal predecessors, (393), 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) [2022-11-25 17:26:29,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 829 transitions. [2022-11-25 17:26:29,019 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 829 transitions. Word has length 175 [2022-11-25 17:26:29,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:29,019 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 829 transitions. [2022-11-25 17:26:29,020 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) [2022-11-25 17:26:29,020 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 829 transitions. [2022-11-25 17:26:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-25 17:26:29,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:29,029 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] [2022-11-25 17:26:29,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:29,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:29,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1259751837, now seen corresponding path program 1 times [2022-11-25 17:26:29,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:29,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631208642] [2022-11-25 17:26:29,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:29,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:29,322 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:29,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226275080] [2022-11-25 17:26:29,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:29,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:29,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:29,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:29,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:26:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:29,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 2625 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:26:30,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-11-25 17:26:30,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:30,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:30,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631208642] [2022-11-25 17:26:30,088 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:30,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226275080] [2022-11-25 17:26:30,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226275080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:30,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:30,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:26:30,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151541462] [2022-11-25 17:26:30,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:30,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:26:30,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:30,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:26:30,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:26:30,092 INFO L87 Difference]: Start difference. First operand 551 states and 829 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) [2022-11-25 17:26:30,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:30,697 INFO L93 Difference]: Finished difference Result 1077 states and 1650 transitions. [2022-11-25 17:26:30,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:26:30,698 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 [2022-11-25 17:26:30,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:30,703 INFO L225 Difference]: With dead ends: 1077 [2022-11-25 17:26:30,704 INFO L226 Difference]: Without dead ends: 559 [2022-11-25 17:26:30,709 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 [2022-11-25 17:26:30,711 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 810 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 3281 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 [2022-11-25 17:26:30,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 3281 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:26:30,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-25 17:26:30,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 551. [2022-11-25 17:26:30,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 318 states have (on average 1.2358490566037736) internal successors, (393), 321 states have internal predecessors, (393), 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) [2022-11-25 17:26:30,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 829 transitions. [2022-11-25 17:26:30,771 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 829 transitions. Word has length 190 [2022-11-25 17:26:30,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:30,772 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 829 transitions. [2022-11-25 17:26:30,772 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) [2022-11-25 17:26:30,772 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 829 transitions. [2022-11-25 17:26:30,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-25 17:26:30,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:30,776 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] [2022-11-25 17:26:30,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:30,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:30,986 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:30,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:30,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1496894689, now seen corresponding path program 1 times [2022-11-25 17:26:30,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:30,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374955190] [2022-11-25 17:26:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:30,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:31,108 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:31,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132726329] [2022-11-25 17:26:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:31,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:31,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:31,110 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:31,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:26:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:31,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 2697 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:26:31,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:31,920 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-11-25 17:26:31,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:31,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:31,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374955190] [2022-11-25 17:26:31,921 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:31,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132726329] [2022-11-25 17:26:31,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132726329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:31,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:31,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:26:31,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417053885] [2022-11-25 17:26:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:31,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:31,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:31,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:31,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:31,924 INFO L87 Difference]: Start difference. First operand 551 states and 829 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) [2022-11-25 17:26:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:32,932 INFO L93 Difference]: Finished difference Result 1087 states and 1657 transitions. [2022-11-25 17:26:32,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:26:32,933 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 [2022-11-25 17:26:32,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:32,938 INFO L225 Difference]: With dead ends: 1087 [2022-11-25 17:26:32,938 INFO L226 Difference]: Without dead ends: 569 [2022-11-25 17:26:32,941 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 [2022-11-25 17:26:32,942 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 860 mSDsluCounter, 3692 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 4344 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:32,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 4344 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 17:26:32,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-11-25 17:26:32,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 551. [2022-11-25 17:26:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 318 states have (on average 1.2358490566037736) internal successors, (393), 321 states have internal predecessors, (393), 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) [2022-11-25 17:26:32,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 829 transitions. [2022-11-25 17:26:32,987 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 829 transitions. Word has length 206 [2022-11-25 17:26:32,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:32,988 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 829 transitions. [2022-11-25 17:26:32,988 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) [2022-11-25 17:26:32,988 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 829 transitions. [2022-11-25 17:26:32,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-25 17:26:32,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:32,992 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] [2022-11-25 17:26:33,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:33,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:33,202 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:33,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:33,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1731548032, now seen corresponding path program 2 times [2022-11-25 17:26:33,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:33,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33640379] [2022-11-25 17:26:33,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:33,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:33,301 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:33,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32999324] [2022-11-25 17:26:33,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:26:33,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:33,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:33,303 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:33,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:26:33,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:26:33,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:26:34,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 2838 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:26:34,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:34,146 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-11-25 17:26:34,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:34,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:34,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33640379] [2022-11-25 17:26:34,147 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:34,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32999324] [2022-11-25 17:26:34,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32999324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:34,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:34,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:26:34,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434584157] [2022-11-25 17:26:34,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:34,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:26:34,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:34,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:26:34,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:26:34,150 INFO L87 Difference]: Start difference. First operand 551 states and 829 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) [2022-11-25 17:26:34,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:34,624 INFO L93 Difference]: Finished difference Result 1063 states and 1610 transitions. [2022-11-25 17:26:34,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:26:34,625 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 [2022-11-25 17:26:34,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:34,629 INFO L225 Difference]: With dead ends: 1063 [2022-11-25 17:26:34,630 INFO L226 Difference]: Without dead ends: 553 [2022-11-25 17:26:34,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:26:34,633 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 838 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 3278 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 [2022-11-25 17:26:34,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 3278 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:26:34,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-25 17:26:34,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2022-11-25 17:26:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 319 states have (on average 1.2351097178683386) internal successors, (394), 323 states have internal predecessors, (394), 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) [2022-11-25 17:26:34,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 838 transitions. [2022-11-25 17:26:34,677 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 838 transitions. Word has length 221 [2022-11-25 17:26:34,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:34,679 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 838 transitions. [2022-11-25 17:26:34,679 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) [2022-11-25 17:26:34,679 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 838 transitions. [2022-11-25 17:26:34,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-25 17:26:34,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:34,684 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] [2022-11-25 17:26:34,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:34,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:34,894 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:34,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:34,895 INFO L85 PathProgramCache]: Analyzing trace with hash 704505135, now seen corresponding path program 1 times [2022-11-25 17:26:34,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:34,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918132041] [2022-11-25 17:26:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:34,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:34,981 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:34,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506007246] [2022-11-25 17:26:34,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:34,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:34,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:34,983 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:35,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:26:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:35,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 2888 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:26:35,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:35,761 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-11-25 17:26:35,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:35,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:35,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918132041] [2022-11-25 17:26:35,762 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:35,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506007246] [2022-11-25 17:26:35,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506007246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:35,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:35,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:26:35,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009329167] [2022-11-25 17:26:35,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:35,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:35,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:35,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:35,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:35,765 INFO L87 Difference]: Start difference. First operand 553 states and 838 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) [2022-11-25 17:26:36,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:36,644 INFO L93 Difference]: Finished difference Result 1081 states and 1648 transitions. [2022-11-25 17:26:36,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:26:36,645 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 [2022-11-25 17:26:36,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:36,649 INFO L225 Difference]: With dead ends: 1081 [2022-11-25 17:26:36,650 INFO L226 Difference]: Without dead ends: 569 [2022-11-25 17:26:36,653 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 [2022-11-25 17:26:36,653 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 849 mSDsluCounter, 3762 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 4436 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:36,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 4436 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:26:36,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-11-25 17:26:36,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 567. [2022-11-25 17:26:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 332 states have (on average 1.2409638554216869) internal successors, (412), 335 states have internal predecessors, (412), 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) [2022-11-25 17:26:36,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 858 transitions. [2022-11-25 17:26:36,696 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 858 transitions. Word has length 229 [2022-11-25 17:26:36,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:36,697 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 858 transitions. [2022-11-25 17:26:36,697 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) [2022-11-25 17:26:36,697 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 858 transitions. [2022-11-25 17:26:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-25 17:26:36,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:36,701 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] [2022-11-25 17:26:36,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:36,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:36,912 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:36,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1333093850, now seen corresponding path program 2 times [2022-11-25 17:26:36,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:36,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404276894] [2022-11-25 17:26:36,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:36,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:37,001 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:37,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [355338607] [2022-11-25 17:26:37,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:26:37,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:37,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:37,003 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:37,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:26:37,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:26:37,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:26:37,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:26:37,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-11-25 17:26:37,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:37,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:37,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404276894] [2022-11-25 17:26:37,880 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:37,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355338607] [2022-11-25 17:26:37,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355338607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:37,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:37,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:26:37,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748065497] [2022-11-25 17:26:37,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:37,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:26:37,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:37,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:26:37,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:26:37,883 INFO L87 Difference]: Start difference. First operand 567 states and 858 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) [2022-11-25 17:26:38,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:38,577 INFO L93 Difference]: Finished difference Result 1101 states and 1688 transitions. [2022-11-25 17:26:38,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:26:38,578 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 [2022-11-25 17:26:38,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:38,583 INFO L225 Difference]: With dead ends: 1101 [2022-11-25 17:26:38,583 INFO L226 Difference]: Without dead ends: 575 [2022-11-25 17:26:38,589 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 [2022-11-25 17:26:38,591 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 862 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 3899 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:38,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 3899 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:26:38,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-11-25 17:26:38,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 567. [2022-11-25 17:26:38,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 332 states have (on average 1.2409638554216869) internal successors, (412), 335 states have internal predecessors, (412), 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) [2022-11-25 17:26:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 858 transitions. [2022-11-25 17:26:38,646 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 858 transitions. Word has length 244 [2022-11-25 17:26:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:38,647 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 858 transitions. [2022-11-25 17:26:38,648 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) [2022-11-25 17:26:38,648 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 858 transitions. [2022-11-25 17:26:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-25 17:26:38,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:38,654 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2022-11-25 17:26:38,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:38,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:38,865 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:38,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:38,866 INFO L85 PathProgramCache]: Analyzing trace with hash 2083883891, now seen corresponding path program 3 times [2022-11-25 17:26:38,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:38,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788985219] [2022-11-25 17:26:38,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:38,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:38,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:38,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931124910] [2022-11-25 17:26:38,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:26:38,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:38,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:38,994 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:39,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:26:40,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 17:26:40,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:26:40,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:26:40,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-11-25 17:26:40,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:40,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:40,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788985219] [2022-11-25 17:26:40,108 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:40,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931124910] [2022-11-25 17:26:40,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931124910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:40,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:40,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:26:40,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87127188] [2022-11-25 17:26:40,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:40,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:26:40,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:40,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:26:40,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:26:40,111 INFO L87 Difference]: Start difference. First operand 567 states and 858 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) [2022-11-25 17:26:40,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:40,552 INFO L93 Difference]: Finished difference Result 1076 states and 1642 transitions. [2022-11-25 17:26:40,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:26:40,553 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 275 [2022-11-25 17:26:40,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:40,557 INFO L225 Difference]: With dead ends: 1076 [2022-11-25 17:26:40,558 INFO L226 Difference]: Without dead ends: 567 [2022-11-25 17:26:40,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:26:40,562 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 2 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3447 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 [2022-11-25 17:26:40,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3447 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:26:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-11-25 17:26:40,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2022-11-25 17:26:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 332 states have (on average 1.2409638554216869) internal successors, (412), 335 states have internal predecessors, (412), 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) [2022-11-25 17:26:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 857 transitions. [2022-11-25 17:26:40,602 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 857 transitions. Word has length 275 [2022-11-25 17:26:40,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:40,603 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 857 transitions. [2022-11-25 17:26:40,603 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) [2022-11-25 17:26:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 857 transitions. [2022-11-25 17:26:40,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-25 17:26:40,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:40,609 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] [2022-11-25 17:26:40,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:40,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:40,823 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:40,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:40,823 INFO L85 PathProgramCache]: Analyzing trace with hash 638478680, now seen corresponding path program 4 times [2022-11-25 17:26:40,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:40,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449322215] [2022-11-25 17:26:40,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:40,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:40,930 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:40,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1048561532] [2022-11-25 17:26:40,930 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:26:40,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:40,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:40,932 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:40,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 17:26:41,462 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:26:41,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:26:41,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:26:41,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-25 17:26:41,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:41,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:41,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449322215] [2022-11-25 17:26:41,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:41,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048561532] [2022-11-25 17:26:41,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048561532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:41,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:41,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:26:41,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535925061] [2022-11-25 17:26:41,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:41,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:26:41,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:41,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:26:41,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:26:41,540 INFO L87 Difference]: Start difference. First operand 567 states and 857 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) [2022-11-25 17:26:42,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:42,256 INFO L93 Difference]: Finished difference Result 1220 states and 1863 transitions. [2022-11-25 17:26:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:26:42,257 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 [2022-11-25 17:26:42,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:42,266 INFO L225 Difference]: With dead ends: 1220 [2022-11-25 17:26:42,266 INFO L226 Difference]: Without dead ends: 706 [2022-11-25 17:26:42,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:26:42,271 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 159 mSDsluCounter, 4457 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 5264 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:42,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 5264 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 17:26:42,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-11-25 17:26:42,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 664. [2022-11-25 17:26:42,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 398 states have (on average 1.2663316582914572) internal successors, (504), 403 states have internal predecessors, (504), 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) [2022-11-25 17:26:42,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 1021 transitions. [2022-11-25 17:26:42,323 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 1021 transitions. Word has length 290 [2022-11-25 17:26:42,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:42,324 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 1021 transitions. [2022-11-25 17:26:42,324 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) [2022-11-25 17:26:42,324 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 1021 transitions. [2022-11-25 17:26:42,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-11-25 17:26:42,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:42,327 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] [2022-11-25 17:26:42,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:42,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:26:42,534 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:42,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:42,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1883250610, now seen corresponding path program 5 times [2022-11-25 17:26:42,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:42,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011607269] [2022-11-25 17:26:42,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:42,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:42,628 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:42,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935097278] [2022-11-25 17:26:42,628 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 17:26:42,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:42,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:42,629 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:42,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 17:26:43,021 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:26:43,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:26:43,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 17:26:43,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:43,094 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-11-25 17:26:43,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:43,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:43,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011607269] [2022-11-25 17:26:43,095 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:43,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935097278] [2022-11-25 17:26:43,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935097278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:43,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:43,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:26:43,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490708977] [2022-11-25 17:26:43,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:43,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:26:43,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:43,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:26:43,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:26:43,097 INFO L87 Difference]: Start difference. First operand 664 states and 1021 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 17:26:43,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:43,176 INFO L93 Difference]: Finished difference Result 1297 states and 1999 transitions. [2022-11-25 17:26:43,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:26:43,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 290 [2022-11-25 17:26:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:43,183 INFO L225 Difference]: With dead ends: 1297 [2022-11-25 17:26:43,184 INFO L226 Difference]: Without dead ends: 671 [2022-11-25 17:26:43,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:26:43,189 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 1 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3777 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:43,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3777 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:26:43,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-11-25 17:26:43,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 669. [2022-11-25 17:26:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 402 states have (on average 1.263681592039801) internal successors, (508), 407 states have internal predecessors, (508), 228 states have call successors, (228), 33 states have call predecessors, (228), 37 states have return successors, (291), 228 states have call predecessors, (291), 226 states have call successors, (291) [2022-11-25 17:26:43,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1027 transitions. [2022-11-25 17:26:43,242 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1027 transitions. Word has length 290 [2022-11-25 17:26:43,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:43,242 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 1027 transitions. [2022-11-25 17:26:43,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-25 17:26:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1027 transitions. [2022-11-25 17:26:43,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-11-25 17:26:43,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:43,245 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] [2022-11-25 17:26:43,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:43,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 17:26:43,452 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:43,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:43,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1749099963, now seen corresponding path program 1 times [2022-11-25 17:26:43,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:43,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53819297] [2022-11-25 17:26:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:43,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:43,557 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:43,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508540989] [2022-11-25 17:26:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:43,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:43,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:43,559 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:43,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 17:26:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:44,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 3430 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:26:44,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-25 17:26:44,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:44,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:44,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53819297] [2022-11-25 17:26:44,585 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:44,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508540989] [2022-11-25 17:26:44,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508540989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:44,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:44,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 17:26:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455080597] [2022-11-25 17:26:44,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:44,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:26:44,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:44,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:26:44,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:26:44,588 INFO L87 Difference]: Start difference. First operand 669 states and 1027 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) [2022-11-25 17:26:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:45,672 INFO L93 Difference]: Finished difference Result 1313 states and 2020 transitions. [2022-11-25 17:26:45,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:26:45,673 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 [2022-11-25 17:26:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:45,679 INFO L225 Difference]: With dead ends: 1313 [2022-11-25 17:26:45,679 INFO L226 Difference]: Without dead ends: 687 [2022-11-25 17:26:45,683 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 [2022-11-25 17:26:45,683 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 912 mSDsluCounter, 4272 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 4923 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:45,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 4923 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 17:26:45,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2022-11-25 17:26:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 636. [2022-11-25 17:26:45,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 373 states have (on average 1.2546916890080428) internal successors, (468), 379 states have internal predecessors, (468), 225 states have call successors, (225), 33 states have call predecessors, (225), 36 states have return successors, (277), 223 states have call predecessors, (277), 223 states have call successors, (277) [2022-11-25 17:26:45,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 970 transitions. [2022-11-25 17:26:45,727 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 970 transitions. Word has length 298 [2022-11-25 17:26:45,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:45,728 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 970 transitions. [2022-11-25 17:26:45,728 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) [2022-11-25 17:26:45,728 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 970 transitions. [2022-11-25 17:26:45,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-25 17:26:45,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:45,731 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] [2022-11-25 17:26:45,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:45,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:26:45,947 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:45,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:45,947 INFO L85 PathProgramCache]: Analyzing trace with hash -766814388, now seen corresponding path program 2 times [2022-11-25 17:26:45,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:45,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409529176] [2022-11-25 17:26:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:45,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:46,069 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:46,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084991574] [2022-11-25 17:26:46,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:26:46,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:46,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:46,071 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:46,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 17:26:47,081 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:26:47,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:26:47,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 3571 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:26:47,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:47,211 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-11-25 17:26:47,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:47,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:47,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409529176] [2022-11-25 17:26:47,212 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:47,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084991574] [2022-11-25 17:26:47,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084991574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:47,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:47,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:26:47,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474058576] [2022-11-25 17:26:47,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:47,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:47,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:47,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:47,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:47,216 INFO L87 Difference]: Start difference. First operand 636 states and 970 transitions. Second operand has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 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) [2022-11-25 17:26:47,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:47,884 INFO L93 Difference]: Finished difference Result 1148 states and 1748 transitions. [2022-11-25 17:26:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:26:47,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 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 313 [2022-11-25 17:26:47,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:47,889 INFO L225 Difference]: With dead ends: 1148 [2022-11-25 17:26:47,889 INFO L226 Difference]: Without dead ends: 561 [2022-11-25 17:26:47,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:26:47,894 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 911 mSDsluCounter, 3769 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 4447 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:47,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 4447 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:26:47,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-11-25 17:26:47,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 559. [2022-11-25 17:26:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 324 states have (on average 1.2314814814814814) internal successors, (399), 328 states have internal predecessors, (399), 198 states have call successors, (198), 32 states have call predecessors, (198), 35 states have return successors, (241), 198 states have call predecessors, (241), 196 states have call successors, (241) [2022-11-25 17:26:47,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 838 transitions. [2022-11-25 17:26:47,933 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 838 transitions. Word has length 313 [2022-11-25 17:26:47,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:47,933 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 838 transitions. [2022-11-25 17:26:47,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 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) [2022-11-25 17:26:47,934 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 838 transitions. [2022-11-25 17:26:47,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-11-25 17:26:47,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:47,936 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] [2022-11-25 17:26:47,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:48,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 17:26:48,148 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:48,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1410340921, now seen corresponding path program 1 times [2022-11-25 17:26:48,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:48,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098115014] [2022-11-25 17:26:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:48,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:48,261 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:48,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005028586] [2022-11-25 17:26:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:48,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:48,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:48,263 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:48,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 17:26:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:49,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 3784 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:26:49,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:49,366 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2022-11-25 17:26:49,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:49,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:49,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098115014] [2022-11-25 17:26:49,367 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:49,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005028586] [2022-11-25 17:26:49,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005028586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:49,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:49,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:26:49,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425818133] [2022-11-25 17:26:49,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:49,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:26:49,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:49,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:26:49,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:26:49,369 INFO L87 Difference]: Start difference. First operand 559 states and 838 transitions. Second operand has 9 states, 8 states have (on average 12.375) internal successors, (99), 9 states have internal predecessors, (99), 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) [2022-11-25 17:26:50,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:50,158 INFO L93 Difference]: Finished difference Result 1063 states and 1593 transitions. [2022-11-25 17:26:50,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:26:50,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 9 states have internal predecessors, (99), 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 344 [2022-11-25 17:26:50,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:50,163 INFO L225 Difference]: With dead ends: 1063 [2022-11-25 17:26:50,164 INFO L226 Difference]: Without dead ends: 559 [2022-11-25 17:26:50,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:26:50,167 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 904 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 4234 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:50,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 4234 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:26:50,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-11-25 17:26:50,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2022-11-25 17:26:50,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 324 states have (on average 1.2314814814814814) internal successors, (399), 328 states have internal predecessors, (399), 198 states have call successors, (198), 32 states have call predecessors, (198), 35 states have return successors, (238), 198 states have call predecessors, (238), 196 states have call successors, (238) [2022-11-25 17:26:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 835 transitions. [2022-11-25 17:26:50,202 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 835 transitions. Word has length 344 [2022-11-25 17:26:50,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:50,203 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 835 transitions. [2022-11-25 17:26:50,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 9 states have internal predecessors, (99), 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) [2022-11-25 17:26:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 835 transitions. [2022-11-25 17:26:50,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-25 17:26:50,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:50,206 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2022-11-25 17:26:50,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:50,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 17:26:50,418 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:50,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:50,418 INFO L85 PathProgramCache]: Analyzing trace with hash -935689784, now seen corresponding path program 2 times [2022-11-25 17:26:50,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:50,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264363555] [2022-11-25 17:26:50,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:50,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:50,517 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:50,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1798699217] [2022-11-25 17:26:50,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:26:50,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:50,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:50,519 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:50,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 17:26:51,751 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:26:51,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:26:51,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 3643 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 17:26:51,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:51,935 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 410 proven. 3 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-11-25 17:26:51,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:26:52,475 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 50 proven. 12 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2022-11-25 17:26:52,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:52,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264363555] [2022-11-25 17:26:52,475 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:52,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798699217] [2022-11-25 17:26:52,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798699217] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:26:52,476 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:26:52,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-11-25 17:26:52,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752371461] [2022-11-25 17:26:52,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:26:52,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 17:26:52,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:52,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 17:26:52,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:26:52,479 INFO L87 Difference]: Start difference. First operand 559 states and 835 transitions. Second operand has 16 states, 14 states have (on average 9.714285714285714) internal successors, (136), 16 states have internal predecessors, (136), 11 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (56), 7 states have call predecessors, (56), 11 states have call successors, (56) [2022-11-25 17:26:54,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:54,168 INFO L93 Difference]: Finished difference Result 1088 states and 1633 transitions. [2022-11-25 17:26:54,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:26:54,168 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 9.714285714285714) internal successors, (136), 16 states have internal predecessors, (136), 11 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (56), 7 states have call predecessors, (56), 11 states have call successors, (56) Word has length 329 [2022-11-25 17:26:54,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:54,174 INFO L225 Difference]: With dead ends: 1088 [2022-11-25 17:26:54,174 INFO L226 Difference]: Without dead ends: 578 [2022-11-25 17:26:54,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 643 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:26:54,180 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 1469 mSDsluCounter, 5413 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 6065 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:54,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 6065 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 17:26:54,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-11-25 17:26:54,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 572. [2022-11-25 17:26:54,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 336 states have (on average 1.2380952380952381) internal successors, (416), 339 states have internal predecessors, (416), 199 states have call successors, (199), 32 states have call predecessors, (199), 35 states have return successors, (239), 200 states have call predecessors, (239), 197 states have call successors, (239) [2022-11-25 17:26:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 854 transitions. [2022-11-25 17:26:54,218 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 854 transitions. Word has length 329 [2022-11-25 17:26:54,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:54,219 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 854 transitions. [2022-11-25 17:26:54,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 9.714285714285714) internal successors, (136), 16 states have internal predecessors, (136), 11 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (56), 7 states have call predecessors, (56), 11 states have call successors, (56) [2022-11-25 17:26:54,219 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 854 transitions. [2022-11-25 17:26:54,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-11-25 17:26:54,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:54,222 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] [2022-11-25 17:26:54,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:54,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:54,434 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:54,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:54,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1012022503, now seen corresponding path program 3 times [2022-11-25 17:26:54,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:54,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413291621] [2022-11-25 17:26:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:54,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:54,532 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:54,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103664369] [2022-11-25 17:26:54,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:26:54,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:54,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:54,534 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:54,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 17:26:55,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 17:26:55,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:26:55,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 17:26:55,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2022-11-25 17:26:55,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:26:55,997 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-11-25 17:26:55,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:55,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413291621] [2022-11-25 17:26:55,997 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:55,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103664369] [2022-11-25 17:26:55,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103664369] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:26:55,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:26:55,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2022-11-25 17:26:55,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320911804] [2022-11-25 17:26:55,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:26:55,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:26:55,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:56,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:26:56,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:26:56,000 INFO L87 Difference]: Start difference. First operand 572 states and 854 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 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) [2022-11-25 17:26:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:56,587 INFO L93 Difference]: Finished difference Result 1085 states and 1635 transitions. [2022-11-25 17:26:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:26:56,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 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 344 [2022-11-25 17:26:56,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:56,597 INFO L225 Difference]: With dead ends: 1085 [2022-11-25 17:26:56,597 INFO L226 Difference]: Without dead ends: 574 [2022-11-25 17:26:56,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:26:56,604 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 22 mSDsluCounter, 4131 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4853 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:56,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4853 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:26:56,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-25 17:26:56,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2022-11-25 17:26:56,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 338 states have (on average 1.2366863905325445) internal successors, (418), 340 states have internal predecessors, (418), 199 states have call successors, (199), 33 states have call predecessors, (199), 35 states have return successors, (238), 200 states have call predecessors, (238), 197 states have call successors, (238) [2022-11-25 17:26:56,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 855 transitions. [2022-11-25 17:26:56,648 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 855 transitions. Word has length 344 [2022-11-25 17:26:56,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:56,649 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 855 transitions. [2022-11-25 17:26:56,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 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) [2022-11-25 17:26:56,650 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 855 transitions. [2022-11-25 17:26:56,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-11-25 17:26:56,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:56,652 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] [2022-11-25 17:26:56,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:56,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:56,862 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:56,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:56,862 INFO L85 PathProgramCache]: Analyzing trace with hash -184208892, now seen corresponding path program 4 times [2022-11-25 17:26:56,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:56,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364017505] [2022-11-25 17:26:56,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:56,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:56,971 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:56,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392150601] [2022-11-25 17:26:56,972 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 17:26:56,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:56,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:56,975 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:56,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-25 17:26:58,070 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 17:26:58,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:26:58,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 3925 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:26:58,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:26:58,249 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-11-25 17:26:58,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:26:58,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:58,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364017505] [2022-11-25 17:26:58,252 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:26:58,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392150601] [2022-11-25 17:26:58,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392150601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:58,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:58,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 17:26:58,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341191377] [2022-11-25 17:26:58,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:58,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:26:58,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:58,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:26:58,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:26:58,255 INFO L87 Difference]: Start difference. First operand 574 states and 855 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 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) [2022-11-25 17:26:59,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:26:59,075 INFO L93 Difference]: Finished difference Result 1117 states and 1668 transitions. [2022-11-25 17:26:59,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:26:59,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 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 359 [2022-11-25 17:26:59,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:26:59,081 INFO L225 Difference]: With dead ends: 1117 [2022-11-25 17:26:59,081 INFO L226 Difference]: Without dead ends: 592 [2022-11-25 17:26:59,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:26:59,085 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 258 mSDsluCounter, 5043 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 5735 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:26:59,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 5735 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:26:59,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-11-25 17:26:59,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 558. [2022-11-25 17:26:59,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 324 states have (on average 1.2314814814814814) internal successors, (399), 326 states have internal predecessors, (399), 198 states have call successors, (198), 33 states have call predecessors, (198), 34 states have return successors, (229), 198 states have call predecessors, (229), 196 states have call successors, (229) [2022-11-25 17:26:59,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 826 transitions. [2022-11-25 17:26:59,125 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 826 transitions. Word has length 359 [2022-11-25 17:26:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:26:59,126 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 826 transitions. [2022-11-25 17:26:59,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 10 states have internal predecessors, (115), 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) [2022-11-25 17:26:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 826 transitions. [2022-11-25 17:26:59,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-25 17:26:59,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:59,129 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2022-11-25 17:26:59,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-25 17:26:59,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 17:26:59,342 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:59,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:59,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1723235649, now seen corresponding path program 1 times [2022-11-25 17:26:59,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:59,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513171094] [2022-11-25 17:26:59,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:59,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:59,451 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:26:59,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463290154] [2022-11-25 17:26:59,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:59,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:26:59,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:26:59,453 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:26:59,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-25 17:27:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:00,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 4066 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:27:00,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:00,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2022-11-25 17:27:00,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:00,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:00,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513171094] [2022-11-25 17:27:00,635 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:00,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463290154] [2022-11-25 17:27:00,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463290154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:00,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:00,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:27:00,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408251151] [2022-11-25 17:27:00,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:00,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:27:00,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:00,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:27:00,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:27:00,638 INFO L87 Difference]: Start difference. First operand 558 states and 826 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2022-11-25 17:27:01,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:01,198 INFO L93 Difference]: Finished difference Result 1119 states and 1687 transitions. [2022-11-25 17:27:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:27:01,199 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 374 [2022-11-25 17:27:01,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:01,203 INFO L225 Difference]: With dead ends: 1119 [2022-11-25 17:27:01,203 INFO L226 Difference]: Without dead ends: 594 [2022-11-25 17:27:01,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:27:01,207 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 23 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3567 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:01,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3567 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:27:01,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-11-25 17:27:01,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 566. [2022-11-25 17:27:01,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 332 states have (on average 1.2319277108433735) internal successors, (409), 334 states have internal predecessors, (409), 198 states have call successors, (198), 33 states have call predecessors, (198), 34 states have return successors, (229), 198 states have call predecessors, (229), 196 states have call successors, (229) [2022-11-25 17:27:01,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 836 transitions. [2022-11-25 17:27:01,252 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 836 transitions. Word has length 374 [2022-11-25 17:27:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:01,253 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 836 transitions. [2022-11-25 17:27:01,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2022-11-25 17:27:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 836 transitions. [2022-11-25 17:27:01,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-25 17:27:01,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:01,256 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2022-11-25 17:27:01,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:01,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-25 17:27:01,469 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:01,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:01,469 INFO L85 PathProgramCache]: Analyzing trace with hash 564327615, now seen corresponding path program 1 times [2022-11-25 17:27:01,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:01,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338912928] [2022-11-25 17:27:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:01,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:01,572 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:01,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14489701] [2022-11-25 17:27:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:01,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:01,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:01,574 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:01,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-25 17:27:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:02,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 4057 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:27:02,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2022-11-25 17:27:02,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:02,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:02,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338912928] [2022-11-25 17:27:02,663 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:02,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14489701] [2022-11-25 17:27:02,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14489701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:02,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:02,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:27:02,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880717497] [2022-11-25 17:27:02,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:02,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:27:02,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:02,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:27:02,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:27:02,667 INFO L87 Difference]: Start difference. First operand 566 states and 836 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 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) [2022-11-25 17:27:02,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:02,724 INFO L93 Difference]: Finished difference Result 1107 states and 1655 transitions. [2022-11-25 17:27:02,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:27:02,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 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 374 [2022-11-25 17:27:02,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:02,729 INFO L225 Difference]: With dead ends: 1107 [2022-11-25 17:27:02,730 INFO L226 Difference]: Without dead ends: 574 [2022-11-25 17:27:02,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:27:02,734 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 3 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2266 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 [2022-11-25 17:27:02,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2266 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:27:02,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-25 17:27:02,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 570. [2022-11-25 17:27:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 336 states have (on average 1.2291666666666667) internal successors, (413), 338 states have internal predecessors, (413), 198 states have call successors, (198), 33 states have call predecessors, (198), 34 states have return successors, (229), 198 states have call predecessors, (229), 196 states have call successors, (229) [2022-11-25 17:27:02,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 840 transitions. [2022-11-25 17:27:02,790 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 840 transitions. Word has length 374 [2022-11-25 17:27:02,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:02,790 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 840 transitions. [2022-11-25 17:27:02,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 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) [2022-11-25 17:27:02,792 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 840 transitions. [2022-11-25 17:27:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-25 17:27:02,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:02,794 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2022-11-25 17:27:02,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:03,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:03,011 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:03,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:03,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1537422269, now seen corresponding path program 1 times [2022-11-25 17:27:03,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:03,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085319821] [2022-11-25 17:27:03,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:03,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:03,105 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:03,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408876032] [2022-11-25 17:27:03,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:03,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:03,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:03,107 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:03,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-25 17:27:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:04,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 4042 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:27:04,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 502 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-25 17:27:04,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:04,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:04,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085319821] [2022-11-25 17:27:04,329 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:04,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408876032] [2022-11-25 17:27:04,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408876032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:04,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:04,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:27:04,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102994422] [2022-11-25 17:27:04,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:04,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:27:04,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:04,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:27:04,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:27:04,332 INFO L87 Difference]: Start difference. First operand 570 states and 840 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-25 17:27:04,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:04,579 INFO L93 Difference]: Finished difference Result 1162 states and 1724 transitions. [2022-11-25 17:27:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:27:04,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 374 [2022-11-25 17:27:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:04,589 INFO L225 Difference]: With dead ends: 1162 [2022-11-25 17:27:04,589 INFO L226 Difference]: Without dead ends: 644 [2022-11-25 17:27:04,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:27:04,593 INFO L413 NwaCegarLoop]: 846 mSDtfsCounter, 103 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 4046 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:04,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 4046 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:27:04,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-11-25 17:27:04,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 576. [2022-11-25 17:27:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 339 states have (on average 1.2271386430678466) internal successors, (416), 341 states have internal predecessors, (416), 201 states have call successors, (201), 33 states have call predecessors, (201), 34 states have return successors, (232), 201 states have call predecessors, (232), 199 states have call successors, (232) [2022-11-25 17:27:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 849 transitions. [2022-11-25 17:27:04,636 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 849 transitions. Word has length 374 [2022-11-25 17:27:04,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:04,637 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 849 transitions. [2022-11-25 17:27:04,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-25 17:27:04,637 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 849 transitions. [2022-11-25 17:27:04,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-25 17:27:04,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:04,640 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2022-11-25 17:27:04,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:04,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:04,860 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1726504129, now seen corresponding path program 1 times [2022-11-25 17:27:04,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:04,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991043499] [2022-11-25 17:27:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:04,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:04,957 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:04,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335550800] [2022-11-25 17:27:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:04,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:04,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:04,959 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:04,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 17:27:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:06,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 4039 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:27:06,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:06,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-11-25 17:27:06,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:06,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:06,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991043499] [2022-11-25 17:27:06,125 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:06,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335550800] [2022-11-25 17:27:06,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335550800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:06,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:06,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:27:06,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145706315] [2022-11-25 17:27:06,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:06,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:27:06,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:06,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:27:06,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:27:06,127 INFO L87 Difference]: Start difference. First operand 576 states and 849 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-25 17:27:06,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:06,383 INFO L93 Difference]: Finished difference Result 1156 states and 1713 transitions. [2022-11-25 17:27:06,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:27:06,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 374 [2022-11-25 17:27:06,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:06,388 INFO L225 Difference]: With dead ends: 1156 [2022-11-25 17:27:06,389 INFO L226 Difference]: Without dead ends: 644 [2022-11-25 17:27:06,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:27:06,393 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 95 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:06,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 3919 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:27:06,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-11-25 17:27:06,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 582. [2022-11-25 17:27:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 342 states have (on average 1.2251461988304093) internal successors, (419), 344 states have internal predecessors, (419), 204 states have call successors, (204), 33 states have call predecessors, (204), 34 states have return successors, (235), 204 states have call predecessors, (235), 202 states have call successors, (235) [2022-11-25 17:27:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 858 transitions. [2022-11-25 17:27:06,437 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 858 transitions. Word has length 374 [2022-11-25 17:27:06,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:06,438 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 858 transitions. [2022-11-25 17:27:06,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-25 17:27:06,438 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 858 transitions. [2022-11-25 17:27:06,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-11-25 17:27:06,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:06,441 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2022-11-25 17:27:06,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:06,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-25 17:27:06,654 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:06,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:06,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1836495741, now seen corresponding path program 1 times [2022-11-25 17:27:06,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:06,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376960653] [2022-11-25 17:27:06,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:06,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:06,753 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:06,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911831892] [2022-11-25 17:27:06,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:06,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:06,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:06,755 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:06,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-25 17:27:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:07,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 4036 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 17:27:07,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2022-11-25 17:27:07,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:07,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:07,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376960653] [2022-11-25 17:27:07,923 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:07,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911831892] [2022-11-25 17:27:07,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911831892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:07,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:07,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:27:07,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347749032] [2022-11-25 17:27:07,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:07,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:27:07,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:07,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:27:07,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:27:07,926 INFO L87 Difference]: Start difference. First operand 582 states and 858 transitions. Second operand has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 7 states have internal predecessors, (115), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-25 17:27:08,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:08,265 INFO L93 Difference]: Finished difference Result 1129 states and 1668 transitions. [2022-11-25 17:27:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:27:08,266 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 7 states have internal predecessors, (115), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 374 [2022-11-25 17:27:08,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:08,271 INFO L225 Difference]: With dead ends: 1129 [2022-11-25 17:27:08,271 INFO L226 Difference]: Without dead ends: 585 [2022-11-25 17:27:08,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:27:08,275 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 12 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:08,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3495 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:27:08,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-11-25 17:27:08,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 580. [2022-11-25 17:27:08,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 340 states have (on average 1.223529411764706) internal successors, (416), 343 states have internal predecessors, (416), 204 states have call successors, (204), 33 states have call predecessors, (204), 34 states have return successors, (234), 203 states have call predecessors, (234), 202 states have call successors, (234) [2022-11-25 17:27:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 854 transitions. [2022-11-25 17:27:08,321 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 854 transitions. Word has length 374 [2022-11-25 17:27:08,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:08,322 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 854 transitions. [2022-11-25 17:27:08,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 7 states have internal predecessors, (115), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-25 17:27:08,322 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 854 transitions. [2022-11-25 17:27:08,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-25 17:27:08,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:08,325 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2022-11-25 17:27:08,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:08,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:08,538 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:08,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:08,539 INFO L85 PathProgramCache]: Analyzing trace with hash -990951825, now seen corresponding path program 1 times [2022-11-25 17:27:08,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:08,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475528232] [2022-11-25 17:27:08,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:08,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:08,639 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:08,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999040502] [2022-11-25 17:27:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:08,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:08,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:08,640 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:08,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-25 17:27:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:09,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 4074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 17:27:09,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 616 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2022-11-25 17:27:09,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:09,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:09,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475528232] [2022-11-25 17:27:09,953 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:09,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999040502] [2022-11-25 17:27:09,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999040502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:09,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:09,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 17:27:09,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234698447] [2022-11-25 17:27:09,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:09,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:27:09,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:09,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:27:09,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:27:09,956 INFO L87 Difference]: Start difference. First operand 580 states and 854 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 6 states have call predecessors, (35), 4 states have call successors, (35) [2022-11-25 17:27:10,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:10,185 INFO L93 Difference]: Finished difference Result 1098 states and 1617 transitions. [2022-11-25 17:27:10,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:27:10,186 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 6 states have call predecessors, (35), 4 states have call successors, (35) Word has length 385 [2022-11-25 17:27:10,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:10,190 INFO L225 Difference]: With dead ends: 1098 [2022-11-25 17:27:10,191 INFO L226 Difference]: Without dead ends: 574 [2022-11-25 17:27:10,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:27:10,194 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 110 mSDsluCounter, 5829 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 6582 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:10,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 6582 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:27:10,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-25 17:27:10,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2022-11-25 17:27:10,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 337 states have (on average 1.2225519287833828) internal successors, (412), 340 states have internal predecessors, (412), 201 states have call successors, (201), 33 states have call predecessors, (201), 34 states have return successors, (231), 200 states have call predecessors, (231), 199 states have call successors, (231) [2022-11-25 17:27:10,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 844 transitions. [2022-11-25 17:27:10,240 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 844 transitions. Word has length 385 [2022-11-25 17:27:10,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:10,241 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 844 transitions. [2022-11-25 17:27:10,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 6 states have call predecessors, (35), 4 states have call successors, (35) [2022-11-25 17:27:10,241 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 844 transitions. [2022-11-25 17:27:10,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-25 17:27:10,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:10,244 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2022-11-25 17:27:10,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:10,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-25 17:27:10,458 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:10,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:10,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1938618067, now seen corresponding path program 1 times [2022-11-25 17:27:10,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:10,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286171861] [2022-11-25 17:27:10,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:10,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:10,559 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:10,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297509153] [2022-11-25 17:27:10,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:10,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:10,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:10,561 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:10,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-25 17:27:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:11,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 4083 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-25 17:27:11,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:12,000 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4999 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_4999))) is different from true [2022-11-25 17:27:12,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 17:27:12,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-11-25 17:27:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-11-25 17:27:12,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:12,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:12,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286171861] [2022-11-25 17:27:12,323 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:12,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297509153] [2022-11-25 17:27:12,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297509153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:12,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:12,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 17:27:12,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859421054] [2022-11-25 17:27:12,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:12,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 17:27:12,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:12,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 17:27:12,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=123, Unknown=10, NotChecked=22, Total=182 [2022-11-25 17:27:12,325 INFO L87 Difference]: Start difference. First operand 574 states and 844 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2022-11-25 17:27:23,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:23,387 INFO L93 Difference]: Finished difference Result 1457 states and 2365 transitions. [2022-11-25 17:27:23,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 17:27:23,388 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 385 [2022-11-25 17:27:23,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:23,395 INFO L225 Difference]: With dead ends: 1457 [2022-11-25 17:27:23,395 INFO L226 Difference]: Without dead ends: 916 [2022-11-25 17:27:23,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=134, Invalid=550, Unknown=22, NotChecked=50, Total=756 [2022-11-25 17:27:23,399 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 480 mSDsluCounter, 4980 mSDsCounter, 0 mSdLazyCounter, 7054 mSolverCounterSat, 280 mSolverCounterUnsat, 478 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 5739 SdHoareTripleChecker+Invalid, 9141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 7054 IncrementalHoareTripleChecker+Invalid, 478 IncrementalHoareTripleChecker+Unknown, 1329 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:23,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 5739 Invalid, 9141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [280 Valid, 7054 Invalid, 478 Unknown, 1329 Unchecked, 10.5s Time] [2022-11-25 17:27:23,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-11-25 17:27:23,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 590. [2022-11-25 17:27:23,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 351 states have (on average 1.2222222222222223) internal successors, (429), 353 states have internal predecessors, (429), 201 states have call successors, (201), 33 states have call predecessors, (201), 36 states have return successors, (267), 203 states have call predecessors, (267), 199 states have call successors, (267) [2022-11-25 17:27:23,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 897 transitions. [2022-11-25 17:27:23,473 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 897 transitions. Word has length 385 [2022-11-25 17:27:23,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:23,473 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 897 transitions. [2022-11-25 17:27:23,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2022-11-25 17:27:23,474 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 897 transitions. [2022-11-25 17:27:23,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-25 17:27:23,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:23,477 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:27:23,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:23,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:23,692 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:23,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1036120973, now seen corresponding path program 1 times [2022-11-25 17:27:23,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:23,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409440810] [2022-11-25 17:27:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:23,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:23,784 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:23,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300858987] [2022-11-25 17:27:23,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:23,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:23,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:23,786 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:23,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-11-25 17:27:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:24,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 4076 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:27:24,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 612 proven. 0 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-11-25 17:27:24,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:24,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:24,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409440810] [2022-11-25 17:27:24,919 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:24,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300858987] [2022-11-25 17:27:24,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300858987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:24,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:24,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:27:24,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673408456] [2022-11-25 17:27:24,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:24,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:27:24,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:24,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:27:24,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:27:24,923 INFO L87 Difference]: Start difference. First operand 590 states and 897 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-25 17:27:24,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:24,992 INFO L93 Difference]: Finished difference Result 1152 states and 1822 transitions. [2022-11-25 17:27:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:27:24,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 385 [2022-11-25 17:27:24,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:24,998 INFO L225 Difference]: With dead ends: 1152 [2022-11-25 17:27:24,998 INFO L226 Difference]: Without dead ends: 595 [2022-11-25 17:27:25,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:27:25,010 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 7 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:25,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2266 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:27:25,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-25 17:27:25,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 592. [2022-11-25 17:27:25,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 353 states have (on average 1.2209631728045325) internal successors, (431), 355 states have internal predecessors, (431), 201 states have call successors, (201), 33 states have call predecessors, (201), 36 states have return successors, (267), 203 states have call predecessors, (267), 199 states have call successors, (267) [2022-11-25 17:27:25,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 899 transitions. [2022-11-25 17:27:25,063 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 899 transitions. Word has length 385 [2022-11-25 17:27:25,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:25,063 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 899 transitions. [2022-11-25 17:27:25,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-25 17:27:25,064 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 899 transitions. [2022-11-25 17:27:25,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-11-25 17:27:25,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:25,067 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:27:25,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:25,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:25,281 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:25,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:25,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1655018447, now seen corresponding path program 1 times [2022-11-25 17:27:25,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:25,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099629938] [2022-11-25 17:27:25,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:25,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:25,382 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:25,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1393280288] [2022-11-25 17:27:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:25,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:25,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:25,384 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:25,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-25 17:27:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:26,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 4094 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-25 17:27:26,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:26,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 430 proven. 0 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-11-25 17:27:26,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:26,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:26,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099629938] [2022-11-25 17:27:26,704 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:26,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393280288] [2022-11-25 17:27:26,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393280288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:26,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:26,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:27:26,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536389282] [2022-11-25 17:27:26,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:26,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:27:26,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:26,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:27:26,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:27:26,707 INFO L87 Difference]: Start difference. First operand 592 states and 899 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-25 17:27:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:26,814 INFO L93 Difference]: Finished difference Result 1171 states and 1809 transitions. [2022-11-25 17:27:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:27:26,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 397 [2022-11-25 17:27:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:26,820 INFO L225 Difference]: With dead ends: 1171 [2022-11-25 17:27:26,820 INFO L226 Difference]: Without dead ends: 612 [2022-11-25 17:27:26,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:27:26,825 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 8 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:26,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3086 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:27:26,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2022-11-25 17:27:26,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 600. [2022-11-25 17:27:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 361 states have (on average 1.2160664819944598) internal successors, (439), 363 states have internal predecessors, (439), 201 states have call successors, (201), 33 states have call predecessors, (201), 36 states have return successors, (267), 203 states have call predecessors, (267), 199 states have call successors, (267) [2022-11-25 17:27:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 907 transitions. [2022-11-25 17:27:26,888 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 907 transitions. Word has length 397 [2022-11-25 17:27:26,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:26,888 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 907 transitions. [2022-11-25 17:27:26,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-25 17:27:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 907 transitions. [2022-11-25 17:27:26,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-25 17:27:26,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:26,892 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:27:26,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:27,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-25 17:27:27,108 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:27,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:27,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1613941936, now seen corresponding path program 1 times [2022-11-25 17:27:27,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:27,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829975104] [2022-11-25 17:27:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:27,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:27,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:27,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637389411] [2022-11-25 17:27:27,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:27,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:27,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:27,202 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:27,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-25 17:27:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:28,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 4095 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-25 17:27:28,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 633 proven. 7 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2022-11-25 17:27:28,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:27:29,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 84 proven. 30 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2022-11-25 17:27:29,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:29,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829975104] [2022-11-25 17:27:29,886 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:29,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637389411] [2022-11-25 17:27:29,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637389411] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:27:29,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:27:29,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14] total 28 [2022-11-25 17:27:29,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589518026] [2022-11-25 17:27:29,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:27:29,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 17:27:29,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 17:27:29,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=699, Unknown=0, NotChecked=0, Total=756 [2022-11-25 17:27:29,890 INFO L87 Difference]: Start difference. First operand 600 states and 907 transitions. Second operand has 28 states, 26 states have (on average 5.730769230769231) internal successors, (149), 19 states have internal predecessors, (149), 4 states have call successors, (47), 3 states have call predecessors, (47), 9 states have return successors, (51), 10 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-25 17:27:31,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:31,383 INFO L93 Difference]: Finished difference Result 1194 states and 1849 transitions. [2022-11-25 17:27:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 17:27:31,383 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 5.730769230769231) internal successors, (149), 19 states have internal predecessors, (149), 4 states have call successors, (47), 3 states have call predecessors, (47), 9 states have return successors, (51), 10 states have call predecessors, (51), 3 states have call successors, (51) Word has length 403 [2022-11-25 17:27:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:31,389 INFO L225 Difference]: With dead ends: 1194 [2022-11-25 17:27:31,389 INFO L226 Difference]: Without dead ends: 627 [2022-11-25 17:27:31,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 775 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=1038, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 17:27:31,394 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 79 mSDsluCounter, 18277 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 19023 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:31,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 19023 Invalid, 1791 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 17:27:31,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-11-25 17:27:31,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 611. [2022-11-25 17:27:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 371 states have (on average 1.2129380053908356) internal successors, (450), 372 states have internal predecessors, (450), 201 states have call successors, (201), 33 states have call predecessors, (201), 37 states have return successors, (300), 205 states have call predecessors, (300), 199 states have call successors, (300) [2022-11-25 17:27:31,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 951 transitions. [2022-11-25 17:27:31,457 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 951 transitions. Word has length 403 [2022-11-25 17:27:31,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:31,458 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 951 transitions. [2022-11-25 17:27:31,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 5.730769230769231) internal successors, (149), 19 states have internal predecessors, (149), 4 states have call successors, (47), 3 states have call predecessors, (47), 9 states have return successors, (51), 10 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-25 17:27:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 951 transitions. [2022-11-25 17:27:31,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-11-25 17:27:31,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:31,462 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:27:31,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-11-25 17:27:31,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-25 17:27:31,675 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:31,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:31,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1839518917, now seen corresponding path program 1 times [2022-11-25 17:27:31,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:31,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096463715] [2022-11-25 17:27:31,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:31,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:31,781 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:31,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383839117] [2022-11-25 17:27:31,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:31,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:31,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:31,783 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:31,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-25 17:27:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:32,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 4083 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:27:33,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 397 proven. 0 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2022-11-25 17:27:33,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:27:33,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:33,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096463715] [2022-11-25 17:27:33,064 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:33,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383839117] [2022-11-25 17:27:33,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383839117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:33,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:33,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:27:33,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788646892] [2022-11-25 17:27:33,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:33,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:27:33,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:27:33,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:27:33,067 INFO L87 Difference]: Start difference. First operand 611 states and 951 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-25 17:27:33,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:33,510 INFO L93 Difference]: Finished difference Result 1194 states and 1994 transitions. [2022-11-25 17:27:33,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:27:33,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 391 [2022-11-25 17:27:33,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:33,516 INFO L225 Difference]: With dead ends: 1194 [2022-11-25 17:27:33,517 INFO L226 Difference]: Without dead ends: 616 [2022-11-25 17:27:33,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:27:33,521 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 10 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:33,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2958 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:27:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-11-25 17:27:33,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 612. [2022-11-25 17:27:33,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 372 states have (on average 1.2096774193548387) internal successors, (450), 373 states have internal predecessors, (450), 201 states have call successors, (201), 33 states have call predecessors, (201), 37 states have return successors, (300), 205 states have call predecessors, (300), 199 states have call successors, (300) [2022-11-25 17:27:33,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 951 transitions. [2022-11-25 17:27:33,580 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 951 transitions. Word has length 391 [2022-11-25 17:27:33,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:33,580 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 951 transitions. [2022-11-25 17:27:33,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-25 17:27:33,580 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 951 transitions. [2022-11-25 17:27:33,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-11-25 17:27:33,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:33,584 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:27:33,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-11-25 17:27:33,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-25 17:27:33,798 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:33,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:33,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1425549825, now seen corresponding path program 1 times [2022-11-25 17:27:33,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:33,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862007055] [2022-11-25 17:27:33,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:33,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:33,888 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:27:33,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980870696] [2022-11-25 17:27:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:33,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:27:33,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:33,890 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:27:33,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-25 17:27:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:35,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 4098 conjuncts, 106 conjunts are in the unsatisfiable core [2022-11-25 17:27:35,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:27:35,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 17:27:35,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-25 17:27:37,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:27:37,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-25 17:27:40,139 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6475 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_6475) |c_#memory_int|)) is different from true [2022-11-25 17:27:40,389 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6477 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6477)) |c_#memory_int|)) is different from true [2022-11-25 17:27:40,399 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6477 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6477)) |c_#memory_int|)) is different from true [2022-11-25 17:27:40,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:27:40,816 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 17:27:40,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 1 [2022-11-25 17:27:40,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 457 proven. 13 refuted. 0 times theorem prover too weak. 649 trivial. 10 not checked. [2022-11-25 17:27:40,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:27:41,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:41,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862007055] [2022-11-25 17:27:41,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:27:41,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980870696] [2022-11-25 17:27:41,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980870696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:27:41,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:27:41,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2022-11-25 17:27:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653272718] [2022-11-25 17:27:41,445 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:27:41,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 17:27:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:41,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 17:27:41,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=12, NotChecked=150, Total=812 [2022-11-25 17:27:41,447 INFO L87 Difference]: Start difference. First operand 612 states and 951 transitions. Second operand has 28 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 12 states have call successors, (41), 7 states have call predecessors, (41), 11 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2022-11-25 17:27:56,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:27:56,368 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6477 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6477)) |c_#memory_int|)) (exists ((|aws_array_list_is_valid_~#required_size~0.base| Int)) (and (exists ((v_ArrVal_6475 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_6475) |c_#memory_int|)) (= (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|) 0)))) is different from true [2022-11-25 17:28:03,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:28:05,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:28:07,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:28:10,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:29:14,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:29:14,440 INFO L93 Difference]: Finished difference Result 2955 states and 5181 transitions. [2022-11-25 17:29:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-25 17:29:14,441 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 12 states have call successors, (41), 7 states have call predecessors, (41), 11 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 391 [2022-11-25 17:29:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:29:14,463 INFO L225 Difference]: With dead ends: 2955 [2022-11-25 17:29:14,463 INFO L226 Difference]: Without dead ends: 2376 [2022-11-25 17:29:14,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 635 SyntacticMatches, 8 SemanticMatches, 59 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 20.0s TimeCoverageRelationStatistics Valid=349, Invalid=2800, Unknown=59, NotChecked=452, Total=3660 [2022-11-25 17:29:14,468 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 1941 mSDsluCounter, 13065 mSDsCounter, 0 mSdLazyCounter, 40771 mSolverCounterSat, 2662 mSolverCounterUnsat, 1240 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 14606 SdHoareTripleChecker+Invalid, 54195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2662 IncrementalHoareTripleChecker+Valid, 40771 IncrementalHoareTripleChecker+Invalid, 1240 IncrementalHoareTripleChecker+Unknown, 9522 IncrementalHoareTripleChecker+Unchecked, 76.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:29:14,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 14606 Invalid, 54195 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2662 Valid, 40771 Invalid, 1240 Unknown, 9522 Unchecked, 76.6s Time] [2022-11-25 17:29:14,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2022-11-25 17:29:14,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1657. [2022-11-25 17:29:14,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 990 states have (on average 1.2) internal successors, (1188), 1010 states have internal predecessors, (1188), 547 states have call successors, (547), 101 states have call predecessors, (547), 118 states have return successors, (999), 545 states have call predecessors, (999), 544 states have call successors, (999) [2022-11-25 17:29:14,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2734 transitions. [2022-11-25 17:29:14,719 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2734 transitions. Word has length 391 [2022-11-25 17:29:14,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:29:14,720 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 2734 transitions. [2022-11-25 17:29:14,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 12 states have call successors, (41), 7 states have call predecessors, (41), 11 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2022-11-25 17:29:14,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2734 transitions. [2022-11-25 17:29:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-11-25 17:29:14,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:29:14,726 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:14,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-11-25 17:29:14,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-25 17:29:14,943 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:29:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:14,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1013579593, now seen corresponding path program 1 times [2022-11-25 17:29:14,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:14,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87493131] [2022-11-25 17:29:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:14,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:15,038 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:29:15,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522899114] [2022-11-25 17:29:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:15,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:29:15,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:29:15,040 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:29:15,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-11-25 17:29:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:16,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 4157 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-25 17:29:16,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:29:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 308 proven. 23 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2022-11-25 17:29:16,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:29:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 118 proven. 13 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2022-11-25 17:29:17,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:17,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87493131] [2022-11-25 17:29:17,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:29:17,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522899114] [2022-11-25 17:29:17,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522899114] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:29:17,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:29:17,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15] total 28 [2022-11-25 17:29:17,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286975072] [2022-11-25 17:29:17,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:29:17,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 17:29:17,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:17,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 17:29:17,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=697, Unknown=0, NotChecked=0, Total=756 [2022-11-25 17:29:17,614 INFO L87 Difference]: Start difference. First operand 1657 states and 2734 transitions. Second operand has 28 states, 24 states have (on average 6.083333333333333) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (43), 3 states have call predecessors, (43), 9 states have return successors, (46), 10 states have call predecessors, (46), 5 states have call successors, (46) [2022-11-25 17:29:19,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:29:19,040 INFO L93 Difference]: Finished difference Result 3222 states and 5370 transitions. [2022-11-25 17:29:19,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 17:29:19,041 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 6.083333333333333) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (43), 3 states have call predecessors, (43), 9 states have return successors, (46), 10 states have call predecessors, (46), 5 states have call successors, (46) Word has length 427 [2022-11-25 17:29:19,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:29:19,052 INFO L225 Difference]: With dead ends: 3222 [2022-11-25 17:29:19,052 INFO L226 Difference]: Without dead ends: 1669 [2022-11-25 17:29:19,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 822 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=974, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 17:29:19,063 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 77 mSDsluCounter, 15475 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 16228 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:29:19,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 16228 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 17:29:19,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2022-11-25 17:29:19,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1656. [2022-11-25 17:29:19,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1656 states, 990 states have (on average 1.2) internal successors, (1188), 1010 states have internal predecessors, (1188), 546 states have call successors, (546), 101 states have call predecessors, (546), 118 states have return successors, (994), 544 states have call predecessors, (994), 543 states have call successors, (994) [2022-11-25 17:29:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2728 transitions. [2022-11-25 17:29:19,231 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2728 transitions. Word has length 427 [2022-11-25 17:29:19,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:29:19,232 INFO L495 AbstractCegarLoop]: Abstraction has 1656 states and 2728 transitions. [2022-11-25 17:29:19,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 6.083333333333333) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (43), 3 states have call predecessors, (43), 9 states have return successors, (46), 10 states have call predecessors, (46), 5 states have call successors, (46) [2022-11-25 17:29:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2728 transitions. [2022-11-25 17:29:19,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-11-25 17:29:19,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:29:19,237 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-25 17:29:19,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-11-25 17:29:19,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:29:19,453 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:29:19,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:19,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1065179143, now seen corresponding path program 2 times [2022-11-25 17:29:19,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:19,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646711581] [2022-11-25 17:29:19,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:19,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:19,550 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:29:19,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1522812357] [2022-11-25 17:29:19,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:29:19,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:29:19,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:29:19,552 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:29:19,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-11-25 17:29:21,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:29:21,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:29:21,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 4149 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-25 17:29:21,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:29:22,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 490 proven. 28 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-25 17:29:22,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:29:22,908 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-25 17:29:22,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2022-11-25 17:29:22,921 INFO L321 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-11-25 17:29:22,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2022-11-25 17:29:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 90 proven. 21 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2022-11-25 17:29:23,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:23,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646711581] [2022-11-25 17:29:23,284 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:29:23,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522812357] [2022-11-25 17:29:23,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522812357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:29:23,284 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:29:23,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 15] total 35 [2022-11-25 17:29:23,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040525053] [2022-11-25 17:29:23,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:29:23,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 17:29:23,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:23,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 17:29:23,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 17:29:23,287 INFO L87 Difference]: Start difference. First operand 1656 states and 2728 transitions. Second operand has 35 states, 31 states have (on average 5.258064516129032) internal successors, (163), 29 states have internal predecessors, (163), 12 states have call successors, (62), 6 states have call predecessors, (62), 8 states have return successors, (60), 11 states have call predecessors, (60), 11 states have call successors, (60) [2022-11-25 17:29:32,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:29:32,292 INFO L93 Difference]: Finished difference Result 3946 states and 6685 transitions. [2022-11-25 17:29:32,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-25 17:29:32,293 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 5.258064516129032) internal successors, (163), 29 states have internal predecessors, (163), 12 states have call successors, (62), 6 states have call predecessors, (62), 8 states have return successors, (60), 11 states have call predecessors, (60), 11 states have call successors, (60) Word has length 415 [2022-11-25 17:29:32,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:29:32,314 INFO L225 Difference]: With dead ends: 3946 [2022-11-25 17:29:32,314 INFO L226 Difference]: Without dead ends: 2319 [2022-11-25 17:29:32,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 798 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=339, Invalid=4083, Unknown=0, NotChecked=0, Total=4422 [2022-11-25 17:29:32,326 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 689 mSDsluCounter, 20331 mSDsCounter, 0 mSdLazyCounter, 8832 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 21180 SdHoareTripleChecker+Invalid, 9242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 8832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:29:32,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 21180 Invalid, 9242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [410 Valid, 8832 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-25 17:29:32,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2022-11-25 17:29:32,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2257. [2022-11-25 17:29:32,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 1349 states have (on average 1.1964418087472202) internal successors, (1614), 1381 states have internal predecessors, (1614), 725 states have call successors, (725), 159 states have call predecessors, (725), 181 states have return successors, (1524), 716 states have call predecessors, (1524), 721 states have call successors, (1524) [2022-11-25 17:29:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 3863 transitions. [2022-11-25 17:29:32,725 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 3863 transitions. Word has length 415 [2022-11-25 17:29:32,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:29:32,725 INFO L495 AbstractCegarLoop]: Abstraction has 2257 states and 3863 transitions. [2022-11-25 17:29:32,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 5.258064516129032) internal successors, (163), 29 states have internal predecessors, (163), 12 states have call successors, (62), 6 states have call predecessors, (62), 8 states have return successors, (60), 11 states have call predecessors, (60), 11 states have call successors, (60) [2022-11-25 17:29:32,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 3863 transitions. [2022-11-25 17:29:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-11-25 17:29:32,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:29:32,732 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:32,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-11-25 17:29:32,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:29:32,947 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:29:32,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:32,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1118966290, now seen corresponding path program 1 times [2022-11-25 17:29:32,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:32,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763688503] [2022-11-25 17:29:32,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:32,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:33,046 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:29:33,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786670387] [2022-11-25 17:29:33,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:33,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:29:33,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:29:33,048 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:29:33,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-25 17:29:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:34,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 4142 conjuncts, 235 conjunts are in the unsatisfiable core [2022-11-25 17:29:34,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:29:35,040 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7362 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7359 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7362)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7359))))) is different from true [2022-11-25 17:29:35,062 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7362 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7359 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_7359)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_7362)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-25 17:29:35,130 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 17:29:35,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-11-25 17:29:35,157 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 17:29:35,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-11-25 17:29:35,556 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 17:29:35,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 17:29:35,571 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 17:29:35,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-25 17:29:35,701 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_7366 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_7366) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_7365 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_7365))))) is different from true [2022-11-25 17:29:36,283 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7370 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7368 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7370))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7368))))) is different from true [2022-11-25 17:29:36,307 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7370 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7368 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_7368)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_7370)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-25 17:29:36,385 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7365 (Array Int Int)) (v_ArrVal_7366 (Array Int Int)) (v_ArrVal_7370 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7368 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_392| Int)) (let ((.cse0 (store |c_old(#memory_$Pointer$.offset)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_392| v_ArrVal_7365)) (.cse2 (store |c_old(#memory_$Pointer$.base)| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_392| v_ArrVal_7366)) (.cse1 (+ 40 |c_aws_priority_queue_is_valid_#in~queue#1.offset|))) (and (= (store .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select .cse0 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_7370)) |c_#memory_$Pointer$.offset|) (= (select (select .cse0 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0) (= (store .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select .cse2 |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_7368)) |c_#memory_$Pointer$.base|) (= (select (select .cse2 |c_aws_priority_queue_is_valid_#in~queue#1.base|) .cse1) 0)))) is different from true [2022-11-25 17:29:36,775 INFO L321 Elim1Store]: treesize reduction 90, result has 30.2 percent of original size [2022-11-25 17:29:36,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 118 [2022-11-25 17:29:36,888 INFO L321 Elim1Store]: treesize reduction 90, result has 30.2 percent of original size [2022-11-25 17:29:36,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 118 [2022-11-25 17:29:36,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:29:36,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:29:36,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 10 [2022-11-25 17:29:37,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 10 [2022-11-25 17:29:37,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:29:37,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 74 [2022-11-25 17:29:37,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:29:37,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 74 [2022-11-25 17:29:37,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-25 17:29:37,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-25 17:29:37,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:29:37,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 17:29:37,820 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 17:29:38,887 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7371 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7373 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7371))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_7373) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-25 17:29:39,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:29:39,495 INFO L321 Elim1Store]: treesize reduction 30, result has 23.1 percent of original size [2022-11-25 17:29:39,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 28 [2022-11-25 17:29:39,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 17:29:39,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:29:39,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:29:39,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-25 17:29:39,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-25 17:29:39,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-25 17:29:40,393 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7374 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7377 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7377)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7374)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-25 17:29:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 708 proven. 66 refuted. 0 times theorem prover too weak. 249 trivial. 113 not checked. [2022-11-25 17:29:41,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:29:41,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:41,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763688503] [2022-11-25 17:29:41,917 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:29:41,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786670387] [2022-11-25 17:29:41,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786670387] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:29:41,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:29:41,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2022-11-25 17:29:41,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274035107] [2022-11-25 17:29:41,918 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:29:41,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-25 17:29:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-25 17:29:41,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1640, Unknown=46, NotChecked=712, Total=2550 [2022-11-25 17:29:41,923 INFO L87 Difference]: Start difference. First operand 2257 states and 3863 transitions. Second operand has 50 states, 45 states have (on average 4.8) internal successors, (216), 47 states have internal predecessors, (216), 20 states have call successors, (47), 7 states have call predecessors, (47), 18 states have return successors, (47), 19 states have call predecessors, (47), 20 states have call successors, (47) [2022-11-25 17:29:43,493 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_7371 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7373 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7371))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_7373) |c_#memory_$Pointer$.offset|))) (exists ((v_ArrVal_7374 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7377 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7377)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7374)) |c_#memory_$Pointer$.offset|))) (exists ((v_ArrVal_7370 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7368 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7370))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7368))))) (exists ((v_ArrVal_7362 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7359 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7362)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7359))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_7366 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_7366) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_7365 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_7365)))))) is different from true [2022-11-25 17:30:01,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:30:06,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:30:16,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:30:19,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:30:21,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:30:38,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:31:00,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:31:03,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:31:26,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:26,396 INFO L93 Difference]: Finished difference Result 7600 states and 13984 transitions. [2022-11-25 17:31:26,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-11-25 17:31:26,397 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 45 states have (on average 4.8) internal successors, (216), 47 states have internal predecessors, (216), 20 states have call successors, (47), 7 states have call predecessors, (47), 18 states have return successors, (47), 19 states have call predecessors, (47), 20 states have call successors, (47) Word has length 399 [2022-11-25 17:31:26,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:31:26,445 INFO L225 Difference]: With dead ends: 7600 [2022-11-25 17:31:26,446 INFO L226 Difference]: Without dead ends: 5349 [2022-11-25 17:31:26,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 389 SyntacticMatches, 12 SemanticMatches, 112 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 3454 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=1057, Invalid=9732, Unknown=167, NotChecked=1926, Total=12882 [2022-11-25 17:31:26,468 INFO L413 NwaCegarLoop]: 1036 mSDtfsCounter, 1399 mSDsluCounter, 14280 mSDsCounter, 0 mSdLazyCounter, 33128 mSolverCounterSat, 1495 mSolverCounterUnsat, 1655 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 15316 SdHoareTripleChecker+Invalid, 55091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1495 IncrementalHoareTripleChecker+Valid, 33128 IncrementalHoareTripleChecker+Invalid, 1655 IncrementalHoareTripleChecker+Unknown, 18813 IncrementalHoareTripleChecker+Unchecked, 85.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:31:26,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 15316 Invalid, 55091 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1495 Valid, 33128 Invalid, 1655 Unknown, 18813 Unchecked, 85.9s Time] [2022-11-25 17:31:26,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5349 states. [2022-11-25 17:31:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5349 to 4878. [2022-11-25 17:31:27,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4878 states, 2959 states have (on average 1.1953362622507604) internal successors, (3537), 3023 states have internal predecessors, (3537), 1542 states have call successors, (1542), 322 states have call predecessors, (1542), 375 states have return successors, (3770), 1532 states have call predecessors, (3770), 1535 states have call successors, (3770) [2022-11-25 17:31:27,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4878 states to 4878 states and 8849 transitions. [2022-11-25 17:31:27,447 INFO L78 Accepts]: Start accepts. Automaton has 4878 states and 8849 transitions. Word has length 399 [2022-11-25 17:31:27,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:31:27,447 INFO L495 AbstractCegarLoop]: Abstraction has 4878 states and 8849 transitions. [2022-11-25 17:31:27,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 45 states have (on average 4.8) internal successors, (216), 47 states have internal predecessors, (216), 20 states have call successors, (47), 7 states have call predecessors, (47), 18 states have return successors, (47), 19 states have call predecessors, (47), 20 states have call successors, (47) [2022-11-25 17:31:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4878 states and 8849 transitions. [2022-11-25 17:31:27,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-25 17:31:27,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:27,461 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 6, 5, 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, 3, 3, 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] [2022-11-25 17:31:27,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-11-25 17:31:27,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:27,680 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:31:27,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:27,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1951107228, now seen corresponding path program 1 times [2022-11-25 17:31:27,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:27,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483655116] [2022-11-25 17:31:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:27,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:27,778 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:31:27,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [490222476] [2022-11-25 17:31:27,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:27,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:27,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:27,780 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:31:27,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-25 17:31:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:29,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 4173 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-25 17:31:29,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:31:29,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 538 proven. 14 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2022-11-25 17:31:29,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:31:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 108 proven. 32 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2022-11-25 17:31:30,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:30,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483655116] [2022-11-25 17:31:30,793 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:31:30,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490222476] [2022-11-25 17:31:30,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490222476] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:31:30,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:31:30,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15] total 28 [2022-11-25 17:31:30,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755707236] [2022-11-25 17:31:30,795 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:31:30,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 17:31:30,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:30,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 17:31:30,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=697, Unknown=0, NotChecked=0, Total=756 [2022-11-25 17:31:30,797 INFO L87 Difference]: Start difference. First operand 4878 states and 8849 transitions. Second operand has 28 states, 24 states have (on average 6.458333333333333) internal successors, (155), 19 states have internal predecessors, (155), 6 states have call successors, (47), 3 states have call predecessors, (47), 9 states have return successors, (50), 10 states have call predecessors, (50), 5 states have call successors, (50) [2022-11-25 17:31:33,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:33,070 INFO L93 Difference]: Finished difference Result 9490 states and 17162 transitions. [2022-11-25 17:31:33,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 17:31:33,071 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 6.458333333333333) internal successors, (155), 19 states have internal predecessors, (155), 6 states have call successors, (47), 3 states have call predecessors, (47), 9 states have return successors, (50), 10 states have call predecessors, (50), 5 states have call successors, (50) Word has length 429 [2022-11-25 17:31:33,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:31:33,108 INFO L225 Difference]: With dead ends: 9490 [2022-11-25 17:31:33,109 INFO L226 Difference]: Without dead ends: 4874 [2022-11-25 17:31:33,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 862 GetRequests, 826 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=1035, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 17:31:33,139 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 68 mSDsluCounter, 15427 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 16178 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:31:33,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 16178 Invalid, 1460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 17:31:33,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2022-11-25 17:31:33,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4836. [2022-11-25 17:31:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4836 states, 2935 states have (on average 1.1955706984667802) internal successors, (3509), 3003 states have internal predecessors, (3509), 1524 states have call successors, (1524), 320 states have call predecessors, (1524), 375 states have return successors, (3723), 1512 states have call predecessors, (3723), 1517 states have call successors, (3723) [2022-11-25 17:31:33,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4836 states to 4836 states and 8756 transitions. [2022-11-25 17:31:34,000 INFO L78 Accepts]: Start accepts. Automaton has 4836 states and 8756 transitions. Word has length 429 [2022-11-25 17:31:34,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:31:34,001 INFO L495 AbstractCegarLoop]: Abstraction has 4836 states and 8756 transitions. [2022-11-25 17:31:34,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 6.458333333333333) internal successors, (155), 19 states have internal predecessors, (155), 6 states have call successors, (47), 3 states have call predecessors, (47), 9 states have return successors, (50), 10 states have call predecessors, (50), 5 states have call successors, (50) [2022-11-25 17:31:34,001 INFO L276 IsEmpty]: Start isEmpty. Operand 4836 states and 8756 transitions. [2022-11-25 17:31:34,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2022-11-25 17:31:34,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:34,012 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:34,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-11-25 17:31:34,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-11-25 17:31:34,230 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:31:34,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:34,230 INFO L85 PathProgramCache]: Analyzing trace with hash -147436764, now seen corresponding path program 1 times [2022-11-25 17:31:34,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:34,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663138373] [2022-11-25 17:31:34,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:34,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:34,332 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:31:34,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189648721] [2022-11-25 17:31:34,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:34,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:34,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:34,334 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:31:34,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-11-25 17:31:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:35,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 4160 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-25 17:31:35,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:31:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 642 proven. 14 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-11-25 17:31:35,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:31:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 142 proven. 62 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2022-11-25 17:31:37,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:37,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663138373] [2022-11-25 17:31:37,646 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:31:37,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189648721] [2022-11-25 17:31:37,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189648721] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:31:37,647 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:31:37,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21] total 30 [2022-11-25 17:31:37,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384798683] [2022-11-25 17:31:37,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:31:37,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-25 17:31:37,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-25 17:31:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2022-11-25 17:31:37,651 INFO L87 Difference]: Start difference. First operand 4836 states and 8756 transitions. Second operand has 30 states, 26 states have (on average 6.923076923076923) internal successors, (180), 21 states have internal predecessors, (180), 8 states have call successors, (50), 3 states have call predecessors, (50), 10 states have return successors, (53), 12 states have call predecessors, (53), 7 states have call successors, (53) [2022-11-25 17:31:40,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:40,075 INFO L93 Difference]: Finished difference Result 9684 states and 17612 transitions. [2022-11-25 17:31:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 17:31:40,076 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 26 states have (on average 6.923076923076923) internal successors, (180), 21 states have internal predecessors, (180), 8 states have call successors, (50), 3 states have call predecessors, (50), 10 states have return successors, (53), 12 states have call predecessors, (53), 7 states have call successors, (53) Word has length 417 [2022-11-25 17:31:40,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:31:40,110 INFO L225 Difference]: With dead ends: 9684 [2022-11-25 17:31:40,110 INFO L226 Difference]: Without dead ends: 4996 [2022-11-25 17:31:40,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 800 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2022-11-25 17:31:40,137 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 19 mSDsluCounter, 17496 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 18277 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:31:40,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 18277 Invalid, 1643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 17:31:40,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4996 states. [2022-11-25 17:31:40,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4996 to 4912. [2022-11-25 17:31:40,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4912 states, 3006 states have (on average 1.1962741184298071) internal successors, (3596), 3072 states have internal predecessors, (3596), 1527 states have call successors, (1527), 319 states have call predecessors, (1527), 377 states have return successors, (3870), 1520 states have call predecessors, (3870), 1520 states have call successors, (3870) [2022-11-25 17:31:40,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4912 states to 4912 states and 8993 transitions. [2022-11-25 17:31:40,906 INFO L78 Accepts]: Start accepts. Automaton has 4912 states and 8993 transitions. Word has length 417 [2022-11-25 17:31:40,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:31:40,907 INFO L495 AbstractCegarLoop]: Abstraction has 4912 states and 8993 transitions. [2022-11-25 17:31:40,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 26 states have (on average 6.923076923076923) internal successors, (180), 21 states have internal predecessors, (180), 8 states have call successors, (50), 3 states have call predecessors, (50), 10 states have return successors, (53), 12 states have call predecessors, (53), 7 states have call successors, (53) [2022-11-25 17:31:40,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4912 states and 8993 transitions. [2022-11-25 17:31:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-11-25 17:31:40,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:40,918 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:40,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-11-25 17:31:41,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:41,135 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:31:41,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:41,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1293892965, now seen corresponding path program 2 times [2022-11-25 17:31:41,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:41,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117998995] [2022-11-25 17:31:41,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:41,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:41,307 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:31:41,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237035721] [2022-11-25 17:31:41,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:31:41,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:41,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:41,309 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:31:41,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-25 17:31:43,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:31:43,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:31:43,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 4161 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-25 17:31:43,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:31:43,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 712 proven. 13 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-11-25 17:31:43,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:31:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 59 proven. 106 refuted. 0 times theorem prover too weak. 1001 trivial. 0 not checked. [2022-11-25 17:31:45,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:45,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117998995] [2022-11-25 17:31:45,367 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:31:45,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237035721] [2022-11-25 17:31:45,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237035721] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:31:45,367 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:31:45,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18] total 34 [2022-11-25 17:31:45,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869053760] [2022-11-25 17:31:45,368 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:31:45,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-25 17:31:45,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:45,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-25 17:31:45,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 17:31:45,370 INFO L87 Difference]: Start difference. First operand 4912 states and 8993 transitions. Second operand has 34 states, 30 states have (on average 6.633333333333334) internal successors, (199), 23 states have internal predecessors, (199), 8 states have call successors, (56), 3 states have call predecessors, (56), 11 states have return successors, (60), 14 states have call predecessors, (60), 7 states have call successors, (60) [2022-11-25 17:31:47,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:47,981 INFO L93 Difference]: Finished difference Result 9841 states and 17953 transitions. [2022-11-25 17:31:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 17:31:47,981 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 30 states have (on average 6.633333333333334) internal successors, (199), 23 states have internal predecessors, (199), 8 states have call successors, (56), 3 states have call predecessors, (56), 11 states have return successors, (60), 14 states have call predecessors, (60), 7 states have call successors, (60) Word has length 411 [2022-11-25 17:31:47,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:31:48,028 INFO L225 Difference]: With dead ends: 9841 [2022-11-25 17:31:48,028 INFO L226 Difference]: Without dead ends: 5004 [2022-11-25 17:31:48,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 784 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=113, Invalid=1609, Unknown=0, NotChecked=0, Total=1722 [2022-11-25 17:31:48,066 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 77 mSDsluCounter, 21977 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 22752 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:31:48,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 22752 Invalid, 2108 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 17:31:48,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5004 states. [2022-11-25 17:31:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5004 to 4876. [2022-11-25 17:31:48,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 2974 states have (on average 1.1967047747141897) internal successors, (3559), 3040 states have internal predecessors, (3559), 1525 states have call successors, (1525), 319 states have call predecessors, (1525), 375 states have return successors, (3798), 1516 states have call predecessors, (3798), 1518 states have call successors, (3798) [2022-11-25 17:31:48,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 8882 transitions. [2022-11-25 17:31:48,928 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 8882 transitions. Word has length 411 [2022-11-25 17:31:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:31:48,929 INFO L495 AbstractCegarLoop]: Abstraction has 4876 states and 8882 transitions. [2022-11-25 17:31:48,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 30 states have (on average 6.633333333333334) internal successors, (199), 23 states have internal predecessors, (199), 8 states have call successors, (56), 3 states have call predecessors, (56), 11 states have return successors, (60), 14 states have call predecessors, (60), 7 states have call successors, (60) [2022-11-25 17:31:48,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 8882 transitions. [2022-11-25 17:31:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-11-25 17:31:48,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:48,939 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:48,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-11-25 17:31:49,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-25 17:31:49,159 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:31:49,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:49,160 INFO L85 PathProgramCache]: Analyzing trace with hash -475383260, now seen corresponding path program 2 times [2022-11-25 17:31:49,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:49,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438682794] [2022-11-25 17:31:49,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:49,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:49,261 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:31:49,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886012375] [2022-11-25 17:31:49,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:31:49,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:49,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:49,263 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:31:49,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-11-25 17:31:50,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:31:50,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:31:51,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 4157 conjuncts, 106 conjunts are in the unsatisfiable core [2022-11-25 17:31:51,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:31:51,984 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8600 Int) (v_ArrVal_8602 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8600))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8602)) |c_#memory_$Pointer$.base|))) is different from true [2022-11-25 17:32:00,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2022-11-25 17:32:00,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2022-11-25 17:32:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 499 proven. 3 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-11-25 17:32:00,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:32:02,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:02,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438682794] [2022-11-25 17:32:02,892 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:32:02,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886012375] [2022-11-25 17:32:02,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886012375] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:32:02,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:32:02,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2022-11-25 17:32:02,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379487279] [2022-11-25 17:32:02,893 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:32:02,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 17:32:02,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:02,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 17:32:02,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=421, Unknown=28, NotChecked=42, Total=552 [2022-11-25 17:32:02,895 INFO L87 Difference]: Start difference. First operand 4876 states and 8882 transitions. Second operand has 23 states, 21 states have (on average 6.285714285714286) internal successors, (132), 21 states have internal predecessors, (132), 11 states have call successors, (40), 5 states have call predecessors, (40), 6 states have return successors, (38), 10 states have call predecessors, (38), 11 states have call successors, (38) [2022-11-25 17:32:05,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:07,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:09,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:11,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:13,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:15,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:17,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:19,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 17:32:21,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:23,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:27,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:30,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:34,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:38,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:42,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:44,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:48,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:50,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:52,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:54,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:32:56,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:00,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:02,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:04,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:08,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:14,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:38,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:40,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:43,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:45,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:47,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:49,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:54,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 17:33:56,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:33:58,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:00,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:03,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:05,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:07,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:09,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:11,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:19,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:21,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:23,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:25,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:28,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:30,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:32,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:34,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:36,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:38,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:40,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:42,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:44,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:47,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:49,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:51,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:53,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:55,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:57,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:34:59,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:02,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:04,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:06,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:08,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:10,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:12,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:14,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:16,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:19,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:21,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:23,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:25,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:27,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:29,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:31,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:33,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:35,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:37,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:40,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:42,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:44,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:46,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:48,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:50,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:52,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:55,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:35:58,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:00,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:02,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:05,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:07,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:09,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:11,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:14,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:16,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:18,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:21,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:23,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:26,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:29,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:32,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:34,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:36,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:38,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:40,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:42,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:44,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:47,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:49,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:51,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:53,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:56,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:36:59,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:01,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:04,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:06,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:08,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:11,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:13,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 17:37:15,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:18,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:20,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:22,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:24,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:26,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 17:37:29,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:32,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:35,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:37,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:39,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:41,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:43,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:45,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:47,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:49,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:53,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:55,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:57,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:59,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:37:59,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:37:59,948 INFO L93 Difference]: Finished difference Result 12514 states and 23930 transitions. [2022-11-25 17:37:59,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-25 17:37:59,949 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 6.285714285714286) internal successors, (132), 21 states have internal predecessors, (132), 11 states have call successors, (40), 5 states have call predecessors, (40), 6 states have return successors, (38), 10 states have call predecessors, (38), 11 states have call successors, (38) Word has length 405 [2022-11-25 17:37:59,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:38:00,016 INFO L225 Difference]: With dead ends: 12514 [2022-11-25 17:38:00,016 INFO L226 Difference]: Without dead ends: 8740 [2022-11-25 17:38:00,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 412 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 59.5s TimeCoverageRelationStatistics Valid=374, Invalid=2551, Unknown=49, NotChecked=106, Total=3080 [2022-11-25 17:38:00,048 INFO L413 NwaCegarLoop]: 1102 mSDtfsCounter, 1163 mSDsluCounter, 9225 mSDsCounter, 0 mSdLazyCounter, 16515 mSolverCounterSat, 1247 mSolverCounterUnsat, 141 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 304.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 10327 SdHoareTripleChecker+Invalid, 20292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1247 IncrementalHoareTripleChecker+Valid, 16515 IncrementalHoareTripleChecker+Invalid, 141 IncrementalHoareTripleChecker+Unknown, 2389 IncrementalHoareTripleChecker+Unchecked, 307.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:38:00,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 10327 Invalid, 20292 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1247 Valid, 16515 Invalid, 141 Unknown, 2389 Unchecked, 307.0s Time] [2022-11-25 17:38:00,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8740 states. [2022-11-25 17:38:01,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8740 to 8327. [2022-11-25 17:38:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8327 states, 5046 states have (on average 1.198969480776853) internal successors, (6050), 5149 states have internal predecessors, (6050), 2656 states have call successors, (2656), 541 states have call predecessors, (2656), 623 states have return successors, (7306), 2636 states have call predecessors, (7306), 2643 states have call successors, (7306) [2022-11-25 17:38:01,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8327 states to 8327 states and 16012 transitions. [2022-11-25 17:38:01,516 INFO L78 Accepts]: Start accepts. Automaton has 8327 states and 16012 transitions. Word has length 405 [2022-11-25 17:38:01,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:38:01,517 INFO L495 AbstractCegarLoop]: Abstraction has 8327 states and 16012 transitions. [2022-11-25 17:38:01,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 6.285714285714286) internal successors, (132), 21 states have internal predecessors, (132), 11 states have call successors, (40), 5 states have call predecessors, (40), 6 states have return successors, (38), 10 states have call predecessors, (38), 11 states have call successors, (38) [2022-11-25 17:38:01,517 INFO L276 IsEmpty]: Start isEmpty. Operand 8327 states and 16012 transitions. [2022-11-25 17:38:01,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-11-25 17:38:01,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:38:01,528 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:01,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-11-25 17:38:01,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-25 17:38:01,750 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:38:01,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:01,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1435760751, now seen corresponding path program 2 times [2022-11-25 17:38:01,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:01,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374506998] [2022-11-25 17:38:01,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:01,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:01,840 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:38:01,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001717290] [2022-11-25 17:38:01,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:38:01,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:38:01,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:38:01,842 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:38:01,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-11-25 17:38:03,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:38:03,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:38:03,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 4156 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-25 17:38:03,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:38:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 252 proven. 3 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2022-11-25 17:38:04,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:38:05,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:05,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374506998] [2022-11-25 17:38:05,231 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:38:05,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001717290] [2022-11-25 17:38:05,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001717290] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:38:05,232 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:38:05,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2022-11-25 17:38:05,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929494874] [2022-11-25 17:38:05,232 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:38:05,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 17:38:05,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:05,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 17:38:05,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-11-25 17:38:05,236 INFO L87 Difference]: Start difference. First operand 8327 states and 16012 transitions. Second operand has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 18 states have internal predecessors, (120), 11 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (37), 11 states have call predecessors, (37), 10 states have call successors, (37) [2022-11-25 17:38:07,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:09,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:11,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:13,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:15,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:17,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:19,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:22,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:24,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:26,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 17:38:28,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:30,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:32,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:35,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:37,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:40,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 17:38:44,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:47,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:49,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:53,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:56,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:38:58,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:04,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:06,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:09,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:11,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:13,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:16,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:18,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:20,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:23,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:25,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:27,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:29,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:32,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:34,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-25 17:39:37,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:39,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:42,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:44,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:46,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:48,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:39:48,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:39:48,762 INFO L93 Difference]: Finished difference Result 20248 states and 38670 transitions. [2022-11-25 17:39:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-25 17:39:48,763 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 18 states have internal predecessors, (120), 11 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (37), 11 states have call predecessors, (37), 10 states have call successors, (37) Word has length 411 [2022-11-25 17:39:48,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:39:48,880 INFO L225 Difference]: With dead ends: 20248 [2022-11-25 17:39:48,880 INFO L226 Difference]: Without dead ends: 13394 [2022-11-25 17:39:48,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 406 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=461, Invalid=2845, Unknown=0, NotChecked=0, Total=3306 [2022-11-25 17:39:48,943 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 948 mSDsluCounter, 6469 mSDsCounter, 0 mSdLazyCounter, 10453 mSolverCounterSat, 895 mSolverCounterUnsat, 42 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 7253 SdHoareTripleChecker+Invalid, 11390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 895 IncrementalHoareTripleChecker+Valid, 10453 IncrementalHoareTripleChecker+Invalid, 42 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:39:48,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 7253 Invalid, 11390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [895 Valid, 10453 Invalid, 42 Unknown, 0 Unchecked, 99.2s Time] [2022-11-25 17:39:48,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13394 states. [2022-11-25 17:39:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13394 to 13167. [2022-11-25 17:39:51,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13167 states, 8076 states have (on average 1.1976225854383358) internal successors, (9672), 8279 states have internal predecessors, (9672), 4010 states have call successors, (4010), 983 states have call predecessors, (4010), 1079 states have return successors, (11122), 3904 states have call predecessors, (11122), 3989 states have call successors, (11122) [2022-11-25 17:39:51,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13167 states to 13167 states and 24804 transitions. [2022-11-25 17:39:51,201 INFO L78 Accepts]: Start accepts. Automaton has 13167 states and 24804 transitions. Word has length 411 [2022-11-25 17:39:51,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:39:51,202 INFO L495 AbstractCegarLoop]: Abstraction has 13167 states and 24804 transitions. [2022-11-25 17:39:51,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.315789473684211) internal successors, (120), 18 states have internal predecessors, (120), 11 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (37), 11 states have call predecessors, (37), 10 states have call successors, (37) [2022-11-25 17:39:51,202 INFO L276 IsEmpty]: Start isEmpty. Operand 13167 states and 24804 transitions. [2022-11-25 17:39:51,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-11-25 17:39:51,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:39:51,209 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:39:51,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-11-25 17:39:51,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:39:51,410 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:39:51,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:51,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2008113648, now seen corresponding path program 1 times [2022-11-25 17:39:51,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:51,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981973714] [2022-11-25 17:39:51,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:51,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:51,518 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:39:51,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375039847] [2022-11-25 17:39:51,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:51,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:39:51,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:39:51,520 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:39:51,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b980d764-1b6e-4310-848d-5c1640be2a44/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-11-25 17:39:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:53,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 4152 conjuncts, 120 conjunts are in the unsatisfiable core [2022-11-25 17:39:53,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:39:54,092 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_9264 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9262 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9262))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9264)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-25 17:39:54,120 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_9264 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9262 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_9262))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_9264))))) is different from true [2022-11-25 17:39:54,214 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 17:39:54,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 42 [2022-11-25 17:39:54,245 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-25 17:39:54,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 36 [2022-11-25 17:39:55,039 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_9266 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9268 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9268))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9266)) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-25 17:40:03,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 742 proven. 5 refuted. 0 times theorem prover too weak. 400 trivial. 19 not checked. [2022-11-25 17:40:03,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:40:06,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:06,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981973714] [2022-11-25 17:40:06,167 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:40:06,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375039847] [2022-11-25 17:40:06,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375039847] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:40:06,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:40:06,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2022-11-25 17:40:06,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681759592] [2022-11-25 17:40:06,168 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-11-25 17:40:06,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 17:40:06,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:06,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 17:40:06,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=554, Unknown=34, NotChecked=150, Total=812 [2022-11-25 17:40:06,171 INFO L87 Difference]: Start difference. First operand 13167 states and 24804 transitions. Second operand has 28 states, 24 states have (on average 6.916666666666667) internal successors, (166), 27 states have internal predecessors, (166), 13 states have call successors, (43), 4 states have call predecessors, (43), 9 states have return successors, (41), 11 states have call predecessors, (41), 13 states have call successors, (41) [2022-11-25 17:40:09,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:40:11,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:40:13,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:40:15,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:40:17,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:40:19,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]