./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8 --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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- 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-2329fc7 [2022-12-13 15:39:08,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:39:08,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:39:08,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:39:08,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:39:08,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:39:08,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:39:08,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:39:08,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:39:08,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:39:08,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:39:08,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:39:08,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:39:08,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:39:08,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:39:08,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:39:08,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:39:08,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:39:08,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:39:08,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:39:08,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:39:08,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:39:08,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:39:08,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:39:08,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:39:08,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:39:08,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:39:08,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:39:08,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:39:08,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:39:08,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:39:08,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:39:08,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:39:08,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:39:08,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:39:08,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:39:08,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:39:08,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:39:08,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:39:08,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:39:08,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:39:08,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 15:39:08,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:39:08,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:39:08,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:39:08,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:39:08,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:39:08,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:39:08,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:39:08,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:39:08,760 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:39:08,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:39:08,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:39:08,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:39:08,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:39:08,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:39:08,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:39:08,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:39:08,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:39:08,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:39:08,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:39:08,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:39:08,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:39:08,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:39:08,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:39:08,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:39:08,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:39:08,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:39:08,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:39:08,762 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:39:08,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:39:08,763 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:39:08,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:39:08,763 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:39:08,763 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_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2022-12-13 15:39:08,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:39:08,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:39:08,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:39:08,961 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:39:08,962 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:39:08,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-12-13 15:39:11,580 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:39:11,928 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:39:11,929 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-12-13 15:39:11,952 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/data/cb284e0fc/89891911531145a3b080490fbaf59f14/FLAG9e6d23bf6 [2022-12-13 15:39:11,965 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/data/cb284e0fc/89891911531145a3b080490fbaf59f14 [2022-12-13 15:39:11,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:39:11,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:39:11,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:39:11,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:39:11,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:39:11,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:39:11" (1/1) ... [2022-12-13 15:39:11,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c0b7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:11, skipping insertion in model container [2022-12-13 15:39:11,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:39:11" (1/1) ... [2022-12-13 15:39:11,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:39:12,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:39:12,212 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_9ece6106-810e-4918-ae4d-3657f26635b4/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-12-13 15:39:12,218 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_9ece6106-810e-4918-ae4d-3657f26635b4/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-12-13 15:39:12,876 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:12,880 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,880 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,881 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,881 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,882 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,884 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:12,893 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,893 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:12,893 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,895 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,895 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,897 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,898 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:12,899 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,900 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,900 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:12,993 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:39:12,993 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:39:12,994 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:39:12,998 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 15:39:13,000 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 15:39:13,000 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 15:39:13,271 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:39:13,273 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 15:39:13,274 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 15:39:13,275 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 15:39:13,276 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 15:39:13,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 15:39:13,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 15:39:13,279 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 15:39:13,280 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 15:39:13,281 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 15:39:13,281 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 15:39:13,402 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 15:39:13,429 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,431 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,433 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,434 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,436 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,438 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,442 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,442 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,443 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,444 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,444 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,444 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,485 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:39:13,499 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,499 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,500 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,500 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,500 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,500 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,501 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,501 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:39:13,501 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,502 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,502 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,502 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,502 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,502 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,505 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,505 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,505 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,505 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,509 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,510 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,517 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,518 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,519 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:39:13,561 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:39:13,572 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_9ece6106-810e-4918-ae4d-3657f26635b4/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-12-13 15:39:13,573 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_9ece6106-810e-4918-ae4d-3657f26635b4/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-12-13 15:39:13,608 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,610 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,610 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,611 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,611 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,612 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,613 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,618 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,618 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,618 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,619 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,619 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,620 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,620 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,620 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,621 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,621 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,628 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:39:13,628 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:39:13,628 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:39:13,631 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 15:39:13,631 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 15:39:13,632 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 15:39:13,651 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:39:13,651 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 15:39:13,652 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 15:39:13,653 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 15:39:13,653 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 15:39:13,654 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 15:39:13,654 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 15:39:13,655 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 15:39:13,655 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 15:39:13,655 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 15:39:13,656 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 15:39:13,672 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 15:39:13,685 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,687 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,688 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,689 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,690 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,692 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,693 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,693 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,694 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,694 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,695 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,695 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:39:13,710 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:39:13,715 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,715 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,715 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,715 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,716 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,716 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,716 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,716 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:39:13,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,718 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,718 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,718 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,718 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,719 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,720 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,720 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,725 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,726 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,727 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:39:13,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:39:13,927 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:39:13,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13 WrapperNode [2022-12-13 15:39:13,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:39:13,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:39:13,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:39:13,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:39:13,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:13,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,061 INFO L138 Inliner]: procedures = 697, calls = 1917, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1032 [2022-12-13 15:39:14,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:39:14,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:39:14,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:39:14,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:39:14,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:39:14,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:39:14,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:39:14,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:39:14,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (1/1) ... [2022-12-13 15:39:14,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:39:14,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:14,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:39:14,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:39:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-12-13 15:39:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-12-13 15:39:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-13 15:39:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-13 15:39:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:39:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-13 15:39:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-13 15:39:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-13 15:39:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-13 15:39:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-13 15:39:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-13 15:39:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-12-13 15:39:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-12-13 15:39:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 15:39:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:39:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-13 15:39:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-13 15:39:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 15:39:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 15:39:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-12-13 15:39:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-12-13 15:39:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 15:39:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:39:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 15:39:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-12-13 15:39:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-12-13 15:39:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-13 15:39:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-13 15:39:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:39:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:39:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-13 15:39:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-13 15:39:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-13 15:39:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-13 15:39:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 15:39:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-12-13 15:39:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-12-13 15:39:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-13 15:39:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-13 15:39:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-13 15:39:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-13 15:39:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 15:39:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 15:39:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 15:39:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-13 15:39:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-13 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-12-13 15:39:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-12-13 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-12-13 15:39:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-12-13 15:39:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-13 15:39:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-13 15:39:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-13 15:39:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-13 15:39:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:39:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-13 15:39:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-13 15:39:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 15:39:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 15:39:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 15:39:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 15:39:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:39:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-12-13 15:39:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-12-13 15:39:14,476 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:39:14,478 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:39:15,839 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:39:15,846 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:39:15,846 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-13 15:39:15,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:39:15 BoogieIcfgContainer [2022-12-13 15:39:15,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:39:15,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:39:15,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:39:15,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:39:15,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:39:11" (1/3) ... [2022-12-13 15:39:15,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb80814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:39:15, skipping insertion in model container [2022-12-13 15:39:15,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:13" (2/3) ... [2022-12-13 15:39:15,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb80814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:39:15, skipping insertion in model container [2022-12-13 15:39:15,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:39:15" (3/3) ... [2022-12-13 15:39:15,853 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2022-12-13 15:39:15,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:39:15,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:39:15,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:39:15,918 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;@41de40d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:39:15,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:39:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 440 states, 255 states have (on average 1.2549019607843137) internal successors, (320), 258 states have internal predecessors, (320), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2022-12-13 15:39:15,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-13 15:39:15,933 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:15,933 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-12-13 15:39:15,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:15,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:15,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1618864345, now seen corresponding path program 1 times [2022-12-13 15:39:15,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:15,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177787232] [2022-12-13 15:39:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:15,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 15:39:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:39:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 15:39:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 15:39:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:39:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 15:39:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:39:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:39:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 15:39:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:39:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 15:39:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 15:39:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:39:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 15:39:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 15:39:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:39:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 15:39:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 15:39:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 15:39:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 15:39:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 15:39:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-12-13 15:39:16,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:16,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177787232] [2022-12-13 15:39:16,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177787232] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:16,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:16,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:39:16,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111013917] [2022-12-13 15:39:16,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:16,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:39:16,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:16,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:39:16,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:39:16,720 INFO L87 Difference]: Start difference. First operand has 440 states, 255 states have (on average 1.2549019607843137) internal successors, (320), 258 states have internal predecessors, (320), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 15:39:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:39:19,646 INFO L93 Difference]: Finished difference Result 1047 states and 1782 transitions. [2022-12-13 15:39:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:39:19,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 133 [2022-12-13 15:39:19,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:39:19,664 INFO L225 Difference]: With dead ends: 1047 [2022-12-13 15:39:19,664 INFO L226 Difference]: Without dead ends: 613 [2022-12-13 15:39:19,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:39:19,675 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 326 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 492 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:39:19,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1011 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [492 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-13 15:39:19,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-12-13 15:39:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 433. [2022-12-13 15:39:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 249 states have (on average 1.2289156626506024) internal successors, (306), 252 states have internal predecessors, (306), 156 states have call successors, (156), 27 states have call predecessors, (156), 26 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-12-13 15:39:19,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 616 transitions. [2022-12-13 15:39:19,773 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 616 transitions. Word has length 133 [2022-12-13 15:39:19,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:19,774 INFO L495 AbstractCegarLoop]: Abstraction has 433 states and 616 transitions. [2022-12-13 15:39:19,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 15:39:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 616 transitions. [2022-12-13 15:39:19,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-13 15:39:19,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:19,778 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-12-13 15:39:19,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:39:19,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:19,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:19,780 INFO L85 PathProgramCache]: Analyzing trace with hash 348864297, now seen corresponding path program 1 times [2022-12-13 15:39:19,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:19,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323663074] [2022-12-13 15:39:19,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:19,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 15:39:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:39:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 15:39:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 15:39:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:39:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 15:39:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:39:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:39:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 15:39:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:39:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 15:39:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 15:39:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:39:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 15:39:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 15:39:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:39:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 15:39:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 15:39:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 15:39:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 15:39:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 15:39:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,353 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-12-13 15:39:20,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:20,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323663074] [2022-12-13 15:39:20,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323663074] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:39:20,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073141718] [2022-12-13 15:39:20,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:20,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:20,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:20,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:20,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:39:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:20,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 15:39:20,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:20,900 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 15:39:20,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:39:20,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073141718] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:20,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:39:20,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-12-13 15:39:20,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860519034] [2022-12-13 15:39:20,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:20,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:39:20,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:20,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:39:20,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:39:20,904 INFO L87 Difference]: Start difference. First operand 433 states and 616 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-13 15:39:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:39:22,201 INFO L93 Difference]: Finished difference Result 832 states and 1201 transitions. [2022-12-13 15:39:22,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:39:22,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 133 [2022-12-13 15:39:22,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:39:22,205 INFO L225 Difference]: With dead ends: 832 [2022-12-13 15:39:22,205 INFO L226 Difference]: Without dead ends: 435 [2022-12-13 15:39:22,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-12-13 15:39:22,207 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 631 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:39:22,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 2141 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 15:39:22,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-12-13 15:39:22,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2022-12-13 15:39:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 250 states have (on average 1.228) internal successors, (307), 254 states have internal predecessors, (307), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (167), 154 states have call predecessors, (167), 154 states have call successors, (167) [2022-12-13 15:39:22,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 630 transitions. [2022-12-13 15:39:22,232 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 630 transitions. Word has length 133 [2022-12-13 15:39:22,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:22,233 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 630 transitions. [2022-12-13 15:39:22,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-13 15:39:22,233 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 630 transitions. [2022-12-13 15:39:22,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 15:39:22,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:22,234 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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] [2022-12-13 15:39:22,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:39:22,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:22,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:22,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:22,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1757484055, now seen corresponding path program 1 times [2022-12-13 15:39:22,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:22,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688923816] [2022-12-13 15:39:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:22,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 15:39:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 15:39:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 15:39:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 15:39:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:39:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 15:39:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:39:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 15:39:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 15:39:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 15:39:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 15:39:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 15:39:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 15:39:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:39:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:39:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 15:39:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 15:39:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 15:39:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 15:39:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 15:39:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 15:39:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 15:39:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-12-13 15:39:23,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:23,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688923816] [2022-12-13 15:39:23,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688923816] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:39:23,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558365730] [2022-12-13 15:39:23,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:23,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:23,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:23,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:23,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:39:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:23,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 2487 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 15:39:23,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 15:39:23,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:39:23,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558365730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:23,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:39:23,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-12-13 15:39:23,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729800066] [2022-12-13 15:39:23,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:23,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:39:23,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:23,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:39:23,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-12-13 15:39:23,592 INFO L87 Difference]: Start difference. First operand 435 states and 630 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-12-13 15:39:27,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:39:27,688 INFO L93 Difference]: Finished difference Result 855 states and 1272 transitions. [2022-12-13 15:39:27,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:39:27,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 141 [2022-12-13 15:39:27,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:39:27,693 INFO L225 Difference]: With dead ends: 855 [2022-12-13 15:39:27,694 INFO L226 Difference]: Without dead ends: 456 [2022-12-13 15:39:27,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-12-13 15:39:27,697 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 689 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:39:27,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 3083 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-13 15:39:27,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-12-13 15:39:27,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 454. [2022-12-13 15:39:27,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 266 states have (on average 1.236842105263158) internal successors, (329), 270 states have internal predecessors, (329), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-12-13 15:39:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 673 transitions. [2022-12-13 15:39:27,728 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 673 transitions. Word has length 141 [2022-12-13 15:39:27,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:27,729 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 673 transitions. [2022-12-13 15:39:27,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-12-13 15:39:27,729 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 673 transitions. [2022-12-13 15:39:27,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 15:39:27,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:27,731 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 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] [2022-12-13 15:39:27,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 15:39:27,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:27,932 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:27,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:27,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1778270991, now seen corresponding path program 1 times [2022-12-13 15:39:27,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:27,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980647913] [2022-12-13 15:39:27,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:27,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:28,011 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:39:28,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [441374327] [2022-12-13 15:39:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:28,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:28,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:28,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:28,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:39:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:28,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 15:39:28,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 15:39:28,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:39:28,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:28,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980647913] [2022-12-13 15:39:28,509 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:39:28,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441374327] [2022-12-13 15:39:28,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441374327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:28,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:28,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:39:28,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176196757] [2022-12-13 15:39:28,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:28,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:39:28,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:28,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:39:28,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:39:28,512 INFO L87 Difference]: Start difference. First operand 454 states and 673 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-13 15:39:29,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 15:39:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:39:30,470 INFO L93 Difference]: Finished difference Result 880 states and 1345 transitions. [2022-12-13 15:39:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:39:30,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 156 [2022-12-13 15:39:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:39:30,476 INFO L225 Difference]: With dead ends: 880 [2022-12-13 15:39:30,476 INFO L226 Difference]: Without dead ends: 462 [2022-12-13 15:39:30,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:39:30,481 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 655 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:39:30,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 2633 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 15:39:30,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-12-13 15:39:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 454. [2022-12-13 15:39:30,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 266 states have (on average 1.236842105263158) internal successors, (329), 270 states have internal predecessors, (329), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-12-13 15:39:30,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 673 transitions. [2022-12-13 15:39:30,519 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 673 transitions. Word has length 156 [2022-12-13 15:39:30,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:30,520 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 673 transitions. [2022-12-13 15:39:30,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-12-13 15:39:30,520 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 673 transitions. [2022-12-13 15:39:30,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-12-13 15:39:30,523 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:30,523 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:30,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:39:30,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-13 15:39:30,724 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:30,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:30,724 INFO L85 PathProgramCache]: Analyzing trace with hash 723207826, now seen corresponding path program 1 times [2022-12-13 15:39:30,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:30,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574306200] [2022-12-13 15:39:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:30,773 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:39:30,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481646559] [2022-12-13 15:39:30,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:30,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:30,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:30,774 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:30,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 15:39:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:31,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 2700 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 15:39:31,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:31,301 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-12-13 15:39:31,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:39:31,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:31,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574306200] [2022-12-13 15:39:31,301 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:39:31,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481646559] [2022-12-13 15:39:31,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481646559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:31,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:31,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 15:39:31,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784217661] [2022-12-13 15:39:31,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:31,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:39:31,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:31,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:39:31,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:39:31,303 INFO L87 Difference]: Start difference. First operand 454 states and 673 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-12-13 15:39:34,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:39:34,036 INFO L93 Difference]: Finished difference Result 890 states and 1349 transitions. [2022-12-13 15:39:34,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:39:34,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 172 [2022-12-13 15:39:34,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:39:34,041 INFO L225 Difference]: With dead ends: 890 [2022-12-13 15:39:34,041 INFO L226 Difference]: Without dead ends: 472 [2022-12-13 15:39:34,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-12-13 15:39:34,043 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 720 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:39:34,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 3540 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 15:39:34,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-12-13 15:39:34,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 454. [2022-12-13 15:39:34,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 266 states have (on average 1.236842105263158) internal successors, (329), 270 states have internal predecessors, (329), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-12-13 15:39:34,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 673 transitions. [2022-12-13 15:39:34,073 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 673 transitions. Word has length 172 [2022-12-13 15:39:34,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:34,074 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 673 transitions. [2022-12-13 15:39:34,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-12-13 15:39:34,074 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 673 transitions. [2022-12-13 15:39:34,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-13 15:39:34,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:34,077 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:39:34,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 15:39:34,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:34,278 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:34,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:34,279 INFO L85 PathProgramCache]: Analyzing trace with hash -662536810, now seen corresponding path program 2 times [2022-12-13 15:39:34,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:34,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360473442] [2022-12-13 15:39:34,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:34,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:34,363 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:39:34,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1065252047] [2022-12-13 15:39:34,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:39:34,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:34,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:34,365 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:34,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 15:39:34,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:39:34,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:39:34,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 2841 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 15:39:34,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:35,030 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-12-13 15:39:35,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:39:35,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:35,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360473442] [2022-12-13 15:39:35,031 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:39:35,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065252047] [2022-12-13 15:39:35,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065252047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:35,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:35,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:39:35,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340796449] [2022-12-13 15:39:35,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:35,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:39:35,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:35,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:39:35,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:39:35,033 INFO L87 Difference]: Start difference. First operand 454 states and 673 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-13 15:39:36,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:39:36,519 INFO L93 Difference]: Finished difference Result 842 states and 1269 transitions. [2022-12-13 15:39:36,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:39:36,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 187 [2022-12-13 15:39:36,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:39:36,522 INFO L225 Difference]: With dead ends: 842 [2022-12-13 15:39:36,522 INFO L226 Difference]: Without dead ends: 456 [2022-12-13 15:39:36,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:39:36,524 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 643 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:39:36,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 2665 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 15:39:36,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-12-13 15:39:36,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2022-12-13 15:39:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 267 states have (on average 1.2359550561797752) internal successors, (330), 272 states have internal predecessors, (330), 158 states have call successors, (158), 27 states have call predecessors, (158), 29 states have return successors, (197), 157 states have call predecessors, (197), 156 states have call successors, (197) [2022-12-13 15:39:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 685 transitions. [2022-12-13 15:39:36,548 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 685 transitions. Word has length 187 [2022-12-13 15:39:36,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:36,548 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 685 transitions. [2022-12-13 15:39:36,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-13 15:39:36,548 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 685 transitions. [2022-12-13 15:39:36,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-12-13 15:39:36,551 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:36,552 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:36,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 15:39:36,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:36,752 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:36,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:36,753 INFO L85 PathProgramCache]: Analyzing trace with hash 324653212, now seen corresponding path program 1 times [2022-12-13 15:39:36,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:36,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44594348] [2022-12-13 15:39:36,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:36,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:36,835 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:39:36,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043487527] [2022-12-13 15:39:36,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:36,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:36,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:36,837 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:36,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 15:39:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:37,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 3032 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 15:39:37,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-12-13 15:39:37,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:39:37,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:37,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44594348] [2022-12-13 15:39:37,358 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:39:37,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043487527] [2022-12-13 15:39:37,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043487527] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:37,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:37,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:39:37,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649912112] [2022-12-13 15:39:37,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:37,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:39:37,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:37,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:39:37,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:39:37,360 INFO L87 Difference]: Start difference. First operand 456 states and 685 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-12-13 15:39:40,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 15:39:41,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:39:41,014 INFO L93 Difference]: Finished difference Result 847 states and 1294 transitions. [2022-12-13 15:39:41,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:39:41,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 210 [2022-12-13 15:39:41,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:39:41,017 INFO L225 Difference]: With dead ends: 847 [2022-12-13 15:39:41,017 INFO L226 Difference]: Without dead ends: 459 [2022-12-13 15:39:41,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:39:41,018 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 667 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:39:41,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 3146 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-13 15:39:41,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-12-13 15:39:41,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 457. [2022-12-13 15:39:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 268 states have (on average 1.2350746268656716) internal successors, (331), 273 states have internal predecessors, (331), 158 states have call successors, (158), 27 states have call predecessors, (158), 29 states have return successors, (197), 157 states have call predecessors, (197), 156 states have call successors, (197) [2022-12-13 15:39:41,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 686 transitions. [2022-12-13 15:39:41,038 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 686 transitions. Word has length 210 [2022-12-13 15:39:41,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:41,039 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 686 transitions. [2022-12-13 15:39:41,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-12-13 15:39:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 686 transitions. [2022-12-13 15:39:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-12-13 15:39:41,042 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:41,043 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:39:41,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 15:39:41,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:41,244 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:41,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:41,246 INFO L85 PathProgramCache]: Analyzing trace with hash 836482535, now seen corresponding path program 1 times [2022-12-13 15:39:41,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:41,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736577641] [2022-12-13 15:39:41,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:41,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:41,340 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:39:41,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978626354] [2022-12-13 15:39:41,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:41,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:41,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:41,341 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:41,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 15:39:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:41,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 2963 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 15:39:41,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-12-13 15:39:41,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:39:42,205 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-12-13 15:39:42,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:42,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736577641] [2022-12-13 15:39:42,206 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:39:42,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978626354] [2022-12-13 15:39:42,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978626354] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:39:42,206 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:39:42,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-12-13 15:39:42,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412696479] [2022-12-13 15:39:42,207 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:39:42,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 15:39:42,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:42,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 15:39:42,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:39:42,209 INFO L87 Difference]: Start difference. First operand 457 states and 686 transitions. Second operand has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 14 states have internal predecessors, (119), 9 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 5 states have call predecessors, (42), 9 states have call successors, (42) [2022-12-13 15:39:46,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:39:46,135 INFO L93 Difference]: Finished difference Result 865 states and 1328 transitions. [2022-12-13 15:39:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:39:46,135 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 14 states have internal predecessors, (119), 9 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 5 states have call predecessors, (42), 9 states have call successors, (42) Word has length 211 [2022-12-13 15:39:46,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:39:46,139 INFO L225 Difference]: With dead ends: 865 [2022-12-13 15:39:46,139 INFO L226 Difference]: Without dead ends: 476 [2022-12-13 15:39:46,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 409 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2022-12-13 15:39:46,142 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 1027 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 4588 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:39:46,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 4588 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-13 15:39:46,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-12-13 15:39:46,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 470. [2022-12-13 15:39:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 280 states have (on average 1.2428571428571429) internal successors, (348), 284 states have internal predecessors, (348), 159 states have call successors, (159), 27 states have call predecessors, (159), 29 states have return successors, (198), 159 states have call predecessors, (198), 157 states have call successors, (198) [2022-12-13 15:39:46,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 705 transitions. [2022-12-13 15:39:46,172 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 705 transitions. Word has length 211 [2022-12-13 15:39:46,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:46,172 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 705 transitions. [2022-12-13 15:39:46,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 14 states have internal predecessors, (119), 9 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 5 states have call predecessors, (42), 9 states have call successors, (42) [2022-12-13 15:39:46,173 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 705 transitions. [2022-12-13 15:39:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-12-13 15:39:46,174 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:46,175 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:39:46,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 15:39:46,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 15:39:46,376 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:46,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:46,378 INFO L85 PathProgramCache]: Analyzing trace with hash -922986487, now seen corresponding path program 2 times [2022-12-13 15:39:46,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:46,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682401400] [2022-12-13 15:39:46,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:46,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:46,489 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:39:46,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567231904] [2022-12-13 15:39:46,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:39:46,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:46,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:46,491 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:46,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 15:39:47,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:39:47,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:39:47,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:39:47,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-12-13 15:39:47,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:39:47,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:47,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682401400] [2022-12-13 15:39:47,251 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:39:47,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567231904] [2022-12-13 15:39:47,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567231904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:47,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:47,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:39:47,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98277179] [2022-12-13 15:39:47,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:47,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:39:47,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:47,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:39:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:39:47,253 INFO L87 Difference]: Start difference. First operand 470 states and 705 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-13 15:39:50,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:39:50,281 INFO L93 Difference]: Finished difference Result 878 states and 1329 transitions. [2022-12-13 15:39:50,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:39:50,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 241 [2022-12-13 15:39:50,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:39:50,284 INFO L225 Difference]: With dead ends: 878 [2022-12-13 15:39:50,284 INFO L226 Difference]: Without dead ends: 482 [2022-12-13 15:39:50,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:39:50,286 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 64 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:39:50,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 3888 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-12-13 15:39:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-12-13 15:39:50,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2022-12-13 15:39:50,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 286 states have (on average 1.2412587412587412) internal successors, (355), 290 states have internal predecessors, (355), 164 states have call successors, (164), 28 states have call predecessors, (164), 30 states have return successors, (203), 164 states have call predecessors, (203), 162 states have call successors, (203) [2022-12-13 15:39:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 722 transitions. [2022-12-13 15:39:50,305 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 722 transitions. Word has length 241 [2022-12-13 15:39:50,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:50,306 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 722 transitions. [2022-12-13 15:39:50,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2022-12-13 15:39:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 722 transitions. [2022-12-13 15:39:50,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-12-13 15:39:50,308 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:50,309 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:39:50,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 15:39:50,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:50,511 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:50,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1950759975, now seen corresponding path program 3 times [2022-12-13 15:39:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:50,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950345592] [2022-12-13 15:39:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:50,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:50,604 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:39:50,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918598184] [2022-12-13 15:39:50,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:39:50,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:50,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:50,606 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:50,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 15:39:51,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 15:39:51,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:39:51,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 161 conjunts are in the unsatisfiable core [2022-12-13 15:39:51,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:51,921 INFO L321 Elim1Store]: treesize reduction 64, result has 42.3 percent of original size [2022-12-13 15:39:51,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 59 [2022-12-13 15:40:27,224 WARN L233 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:41:30,360 WARN L233 SmtUtils]: Spent 50.53s on a formula simplification. DAG size of input: 398 DAG size of output: 139 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-13 15:41:30,361 INFO L321 Elim1Store]: treesize reduction 1221, result has 21.5 percent of original size [2022-12-13 15:41:30,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 14 new quantified variables, introduced 81 case distinctions, treesize of input 410 treesize of output 655 [2022-12-13 15:41:31,548 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 136 proven. 6 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-12-13 15:41:31,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:41:40,921 WARN L233 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:41:48,829 WARN L233 SmtUtils]: Spent 7.68s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:41:55,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:41:55,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950345592] [2022-12-13 15:41:55,620 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:41:55,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918598184] [2022-12-13 15:41:55,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918598184] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:41:55,621 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:41:55,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-12-13 15:41:55,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231768939] [2022-12-13 15:41:55,621 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 15:41:55,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 15:41:55,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:41:55,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 15:41:55,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=784, Unknown=3, NotChecked=0, Total=870 [2022-12-13 15:41:55,622 INFO L87 Difference]: Start difference. First operand 482 states and 722 transitions. Second operand has 26 states, 22 states have (on average 4.454545454545454) internal successors, (98), 19 states have internal predecessors, (98), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (26), 7 states have call predecessors, (26), 6 states have call successors, (26) [2022-12-13 15:41:57,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:41:59,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:42:04,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:42:57,366 WARN L233 SmtUtils]: Spent 42.17s on a formula simplification. DAG size of input: 150 DAG size of output: 83 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:42:59,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:43:29,749 WARN L233 SmtUtils]: Spent 27.45s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:43:31,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:43:45,743 WARN L233 SmtUtils]: Spent 7.74s on a formula simplification. DAG size of input: 131 DAG size of output: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:44:00,471 WARN L233 SmtUtils]: Spent 10.87s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 15:44:15,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:19,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:21,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:22,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:28,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:31,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:34,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:36,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:38,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:40,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:43,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:45,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:50,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:52,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:54,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:44:57,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:05,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:07,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:10,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:13,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:16,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:18,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:25,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:27,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:29,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:32,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:34,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:43,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:47,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:50,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:56,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:45:59,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:05,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:08,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:10,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:12,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:14,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:16,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:18,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:22,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:32,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:35,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:37,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:39,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:41,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:46,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:50,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:52,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:46:57,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:00,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:02,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:05,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:09,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:12,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:14,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:15,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:17,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:19,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:22,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:28,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:30,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:32,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:37,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:38,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:44,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:46,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:48,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:52,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:47:54,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:06,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:09,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:11,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:15,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:17,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:19,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:20,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:22,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:24,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:26,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:30,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:32,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:34,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:36,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:38,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:42,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:50,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:48:55,687 WARN L539 Checker$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] [2022-12-13 15:49:02,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:08,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:10,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:12,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:16,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:18,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:19,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:22,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:23,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:25,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:27,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:29,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:30,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:32,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:34,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:38,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:41,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:43,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:49:46,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:00,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:04,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:06,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:08,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:10,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:14,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:16,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:18,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:21,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:23,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:26,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:30,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:44,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:49,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:56,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:50:59,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:01,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:05,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:08,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:10,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:13,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:15,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:41,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:43,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:44,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:47,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:50,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:52,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:57,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:51:59,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:52:00,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:52:02,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:52:06,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:52:09,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:52:11,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:52:12,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:12,683 INFO L93 Difference]: Finished difference Result 1510 states and 2972 transitions. [2022-12-13 15:52:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-13 15:52:12,684 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 4.454545454545454) internal successors, (98), 19 states have internal predecessors, (98), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (26), 7 states have call predecessors, (26), 6 states have call successors, (26) Word has length 256 [2022-12-13 15:52:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:12,693 INFO L225 Difference]: With dead ends: 1510 [2022-12-13 15:52:12,693 INFO L226 Difference]: Without dead ends: 1508 [2022-12-13 15:52:12,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 132.9s TimeCoverageRelationStatistics Valid=207, Invalid=2041, Unknown=8, NotChecked=0, Total=2256 [2022-12-13 15:52:12,695 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 1033 mSDsluCounter, 9262 mSDsCounter, 0 mSdLazyCounter, 18690 mSolverCounterSat, 828 mSolverCounterUnsat, 204 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 499.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 10182 SdHoareTripleChecker+Invalid, 19722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 828 IncrementalHoareTripleChecker+Valid, 18690 IncrementalHoareTripleChecker+Invalid, 204 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 504.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:12,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 10182 Invalid, 19722 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [828 Valid, 18690 Invalid, 204 Unknown, 0 Unchecked, 504.5s Time] [2022-12-13 15:52:12,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-12-13 15:52:12,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1458. [2022-12-13 15:52:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 858 states have (on average 1.2494172494172495) internal successors, (1072), 870 states have internal predecessors, (1072), 514 states have call successors, (514), 52 states have call predecessors, (514), 84 states have return successors, (1291), 539 states have call predecessors, (1291), 511 states have call successors, (1291) [2022-12-13 15:52:12,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 2877 transitions. [2022-12-13 15:52:12,953 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 2877 transitions. Word has length 256 [2022-12-13 15:52:12,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:12,953 INFO L495 AbstractCegarLoop]: Abstraction has 1458 states and 2877 transitions. [2022-12-13 15:52:12,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 4.454545454545454) internal successors, (98), 19 states have internal predecessors, (98), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (26), 7 states have call predecessors, (26), 6 states have call successors, (26) [2022-12-13 15:52:12,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 2877 transitions. [2022-12-13 15:52:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-12-13 15:52:12,956 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:12,956 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:12,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 15:52:13,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 15:52:13,157 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:13,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:13,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1522748756, now seen corresponding path program 1 times [2022-12-13 15:52:13,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:13,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293276821] [2022-12-13 15:52:13,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:13,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:13,310 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:13,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795473114] [2022-12-13 15:52:13,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:13,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:13,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:13,312 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:13,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 15:52:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:13,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 3393 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:52:13,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:13,867 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-12-13 15:52:13,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:13,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:13,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293276821] [2022-12-13 15:52:13,867 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:13,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795473114] [2022-12-13 15:52:13,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795473114] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:13,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:13,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:52:13,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339468715] [2022-12-13 15:52:13,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:13,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:52:13,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:13,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:52:13,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:52:13,869 INFO L87 Difference]: Start difference. First operand 1458 states and 2877 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 15:52:14,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:14,143 INFO L93 Difference]: Finished difference Result 2884 states and 6317 transitions. [2022-12-13 15:52:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:52:14,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 274 [2022-12-13 15:52:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:14,151 INFO L225 Difference]: With dead ends: 2884 [2022-12-13 15:52:14,152 INFO L226 Difference]: Without dead ends: 1462 [2022-12-13 15:52:14,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:52:14,164 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 7 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1840 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 [2022-12-13 15:52:14,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1840 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:52:14,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-12-13 15:52:14,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1457. [2022-12-13 15:52:14,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 858 states have (on average 1.2482517482517483) internal successors, (1071), 869 states have internal predecessors, (1071), 514 states have call successors, (514), 52 states have call predecessors, (514), 83 states have return successors, (1235), 539 states have call predecessors, (1235), 511 states have call successors, (1235) [2022-12-13 15:52:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2820 transitions. [2022-12-13 15:52:14,499 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2820 transitions. Word has length 274 [2022-12-13 15:52:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:14,499 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 2820 transitions. [2022-12-13 15:52:14,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-13 15:52:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2820 transitions. [2022-12-13 15:52:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-12-13 15:52:14,503 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:14,503 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:14,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 15:52:14,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 15:52:14,704 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:14,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:14,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1258261466, now seen corresponding path program 1 times [2022-12-13 15:52:14,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:14,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245409988] [2022-12-13 15:52:14,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:14,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:14,821 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:14,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816302055] [2022-12-13 15:52:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:14,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:14,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:14,823 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:14,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 15:52:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:15,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 3549 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 15:52:15,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:15,437 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-12-13 15:52:15,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:15,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:15,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245409988] [2022-12-13 15:52:15,438 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:15,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816302055] [2022-12-13 15:52:15,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816302055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:15,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:15,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 15:52:15,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317811849] [2022-12-13 15:52:15,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:15,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:52:15,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:15,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:52:15,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:52:15,440 INFO L87 Difference]: Start difference. First operand 1457 states and 2820 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 15:52:18,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:18,264 INFO L93 Difference]: Finished difference Result 3094 states and 6619 transitions. [2022-12-13 15:52:18,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:52:18,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 293 [2022-12-13 15:52:18,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:18,274 INFO L225 Difference]: With dead ends: 3094 [2022-12-13 15:52:18,275 INFO L226 Difference]: Without dead ends: 1673 [2022-12-13 15:52:18,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:52:18,292 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 23 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:18,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2891 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 15:52:18,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2022-12-13 15:52:18,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1505. [2022-12-13 15:52:18,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 906 states have (on average 1.2483443708609272) internal successors, (1131), 917 states have internal predecessors, (1131), 514 states have call successors, (514), 52 states have call predecessors, (514), 83 states have return successors, (1235), 539 states have call predecessors, (1235), 511 states have call successors, (1235) [2022-12-13 15:52:18,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2880 transitions. [2022-12-13 15:52:18,648 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2880 transitions. Word has length 293 [2022-12-13 15:52:18,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:18,648 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2880 transitions. [2022-12-13 15:52:18,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 15:52:18,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2880 transitions. [2022-12-13 15:52:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-12-13 15:52:18,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:18,652 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:18,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 15:52:18,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 15:52:18,853 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:18,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:18,855 INFO L85 PathProgramCache]: Analyzing trace with hash -616286518, now seen corresponding path program 1 times [2022-12-13 15:52:18,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:18,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3306887] [2022-12-13 15:52:18,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:18,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:18,987 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:18,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098613353] [2022-12-13 15:52:18,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:18,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:18,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:18,989 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:18,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 15:52:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:19,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 3546 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:52:19,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-12-13 15:52:19,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:19,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:19,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3306887] [2022-12-13 15:52:19,497 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:19,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098613353] [2022-12-13 15:52:19,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098613353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:19,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:19,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:52:19,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218703338] [2022-12-13 15:52:19,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:19,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:52:19,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:19,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:52:19,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:52:19,498 INFO L87 Difference]: Start difference. First operand 1505 states and 2880 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 15:52:19,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:19,767 INFO L93 Difference]: Finished difference Result 3022 states and 6174 transitions. [2022-12-13 15:52:19,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:52:19,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 303 [2022-12-13 15:52:19,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:19,777 INFO L225 Difference]: With dead ends: 3022 [2022-12-13 15:52:19,777 INFO L226 Difference]: Without dead ends: 1553 [2022-12-13 15:52:19,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:52:19,787 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 3 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1834 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 [2022-12-13 15:52:19,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1834 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:52:19,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2022-12-13 15:52:20,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1529. [2022-12-13 15:52:20,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 930 states have (on average 1.2419354838709677) internal successors, (1155), 941 states have internal predecessors, (1155), 514 states have call successors, (514), 52 states have call predecessors, (514), 83 states have return successors, (1235), 539 states have call predecessors, (1235), 511 states have call successors, (1235) [2022-12-13 15:52:20,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2904 transitions. [2022-12-13 15:52:20,032 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2904 transitions. Word has length 303 [2022-12-13 15:52:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:20,032 INFO L495 AbstractCegarLoop]: Abstraction has 1529 states and 2904 transitions. [2022-12-13 15:52:20,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 15:52:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2904 transitions. [2022-12-13 15:52:20,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-12-13 15:52:20,034 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:20,034 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:20,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 15:52:20,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 15:52:20,235 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:20,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:20,235 INFO L85 PathProgramCache]: Analyzing trace with hash -414757965, now seen corresponding path program 1 times [2022-12-13 15:52:20,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:20,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880835926] [2022-12-13 15:52:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:20,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:20,303 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:20,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1867008803] [2022-12-13 15:52:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:20,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:20,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:20,305 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:20,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 15:52:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:20,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 3391 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 15:52:20,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-12-13 15:52:21,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:21,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:21,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880835926] [2022-12-13 15:52:21,081 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:21,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867008803] [2022-12-13 15:52:21,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867008803] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:21,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:21,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 15:52:21,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162230071] [2022-12-13 15:52:21,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:21,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:52:21,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:21,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:52:21,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:52:21,083 INFO L87 Difference]: Start difference. First operand 1529 states and 2904 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-13 15:52:25,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 15:52:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:26,996 INFO L93 Difference]: Finished difference Result 2971 states and 5722 transitions. [2022-12-13 15:52:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:52:26,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) Word has length 282 [2022-12-13 15:52:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:27,006 INFO L225 Difference]: With dead ends: 2971 [2022-12-13 15:52:27,006 INFO L226 Difference]: Without dead ends: 1533 [2022-12-13 15:52:27,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-13 15:52:27,015 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 732 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:27,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 4022 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-12-13 15:52:27,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2022-12-13 15:52:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1463. [2022-12-13 15:52:27,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 870 states have (on average 1.2379310344827585) internal successors, (1077), 881 states have internal predecessors, (1077), 511 states have call successors, (511), 52 states have call predecessors, (511), 80 states have return successors, (1148), 533 states have call predecessors, (1148), 508 states have call successors, (1148) [2022-12-13 15:52:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2736 transitions. [2022-12-13 15:52:27,261 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2736 transitions. Word has length 282 [2022-12-13 15:52:27,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:27,261 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 2736 transitions. [2022-12-13 15:52:27,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-13 15:52:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2736 transitions. [2022-12-13 15:52:27,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-12-13 15:52:27,263 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:27,263 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:27,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-12-13 15:52:27,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:27,465 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:27,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:27,465 INFO L85 PathProgramCache]: Analyzing trace with hash -336134390, now seen corresponding path program 1 times [2022-12-13 15:52:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:27,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956502758] [2022-12-13 15:52:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:27,590 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:27,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622790204] [2022-12-13 15:52:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:27,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:27,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:27,592 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:27,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 15:52:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:28,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 3536 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 15:52:28,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:28,228 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-12-13 15:52:28,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:28,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:28,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956502758] [2022-12-13 15:52:28,229 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:28,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622790204] [2022-12-13 15:52:28,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622790204] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:28,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:28,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 15:52:28,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159721533] [2022-12-13 15:52:28,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:28,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:52:28,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:28,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:52:28,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:52:28,231 INFO L87 Difference]: Start difference. First operand 1463 states and 2736 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-12-13 15:52:28,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:28,943 INFO L93 Difference]: Finished difference Result 2880 states and 5438 transitions. [2022-12-13 15:52:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:52:28,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 303 [2022-12-13 15:52:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:28,953 INFO L225 Difference]: With dead ends: 2880 [2022-12-13 15:52:28,953 INFO L226 Difference]: Without dead ends: 1514 [2022-12-13 15:52:28,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:52:28,961 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 34 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:28,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3086 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 15:52:28,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-12-13 15:52:29,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1472. [2022-12-13 15:52:29,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 875 states have (on average 1.2365714285714287) internal successors, (1082), 885 states have internal predecessors, (1082), 515 states have call successors, (515), 52 states have call predecessors, (515), 80 states have return successors, (1154), 538 states have call predecessors, (1154), 512 states have call successors, (1154) [2022-12-13 15:52:29,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2751 transitions. [2022-12-13 15:52:29,206 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2751 transitions. Word has length 303 [2022-12-13 15:52:29,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:29,206 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2751 transitions. [2022-12-13 15:52:29,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-12-13 15:52:29,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2751 transitions. [2022-12-13 15:52:29,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-12-13 15:52:29,209 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:29,210 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:29,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 15:52:29,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 15:52:29,411 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:29,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:29,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1057870524, now seen corresponding path program 1 times [2022-12-13 15:52:29,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:29,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989105539] [2022-12-13 15:52:29,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:29,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:29,506 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:29,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041134264] [2022-12-13 15:52:29,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:29,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:29,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:29,507 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:29,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 15:52:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:30,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 3528 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-13 15:52:30,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:30,331 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-12-13 15:52:30,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:30,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:30,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989105539] [2022-12-13 15:52:30,332 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:30,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041134264] [2022-12-13 15:52:30,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041134264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:30,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:30,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:52:30,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271105595] [2022-12-13 15:52:30,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:30,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:52:30,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:30,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:52:30,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:52:30,334 INFO L87 Difference]: Start difference. First operand 1472 states and 2751 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 15:52:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:34,388 INFO L93 Difference]: Finished difference Result 2922 states and 5509 transitions. [2022-12-13 15:52:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:52:34,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 281 [2022-12-13 15:52:34,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:34,408 INFO L225 Difference]: With dead ends: 2922 [2022-12-13 15:52:34,408 INFO L226 Difference]: Without dead ends: 1547 [2022-12-13 15:52:34,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:52:34,418 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 42 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 4390 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:34,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 4390 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-13 15:52:34,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2022-12-13 15:52:34,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1501. [2022-12-13 15:52:34,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 895 states have (on average 1.2368715083798882) internal successors, (1107), 905 states have internal predecessors, (1107), 522 states have call successors, (522), 52 states have call predecessors, (522), 82 states have return successors, (1171), 547 states have call predecessors, (1171), 519 states have call successors, (1171) [2022-12-13 15:52:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2800 transitions. [2022-12-13 15:52:34,662 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2800 transitions. Word has length 281 [2022-12-13 15:52:34,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:34,662 INFO L495 AbstractCegarLoop]: Abstraction has 1501 states and 2800 transitions. [2022-12-13 15:52:34,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 15:52:34,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2800 transitions. [2022-12-13 15:52:34,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-12-13 15:52:34,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:34,665 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:34,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-12-13 15:52:34,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 15:52:34,866 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:34,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:34,867 INFO L85 PathProgramCache]: Analyzing trace with hash 234137416, now seen corresponding path program 1 times [2022-12-13 15:52:34,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:34,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668657662] [2022-12-13 15:52:34,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:34,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:34,956 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:34,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455566744] [2022-12-13 15:52:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:34,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:34,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:34,957 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:34,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 15:52:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:35,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 3533 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 15:52:35,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:35,520 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-12-13 15:52:35,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:35,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:35,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668657662] [2022-12-13 15:52:35,520 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:35,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455566744] [2022-12-13 15:52:35,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455566744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:35,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:35,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:52:35,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566036130] [2022-12-13 15:52:35,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:35,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:52:35,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:35,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:52:35,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:52:35,522 INFO L87 Difference]: Start difference. First operand 1501 states and 2800 transitions. Second operand has 5 states, 4 states have (on average 31.0) internal successors, (124), 5 states have internal predecessors, (124), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-13 15:52:36,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:36,472 INFO L93 Difference]: Finished difference Result 2867 states and 5403 transitions. [2022-12-13 15:52:36,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:52:36,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 31.0) internal successors, (124), 5 states have internal predecessors, (124), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) Word has length 303 [2022-12-13 15:52:36,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:36,481 INFO L225 Difference]: With dead ends: 2867 [2022-12-13 15:52:36,481 INFO L226 Difference]: Without dead ends: 1469 [2022-12-13 15:52:36,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:52:36,488 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 2 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:36,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2230 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 15:52:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2022-12-13 15:52:36,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1469. [2022-12-13 15:52:36,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 874 states have (on average 1.2334096109839816) internal successors, (1078), 887 states have internal predecessors, (1078), 511 states have call successors, (511), 52 states have call predecessors, (511), 82 states have return successors, (1151), 533 states have call predecessors, (1151), 508 states have call successors, (1151) [2022-12-13 15:52:36,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2740 transitions. [2022-12-13 15:52:36,729 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2740 transitions. Word has length 303 [2022-12-13 15:52:36,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:36,729 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2740 transitions. [2022-12-13 15:52:36,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 31.0) internal successors, (124), 5 states have internal predecessors, (124), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 2 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-13 15:52:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2740 transitions. [2022-12-13 15:52:36,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-13 15:52:36,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:36,731 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:36,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 15:52:36,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 15:52:36,932 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:36,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:36,933 INFO L85 PathProgramCache]: Analyzing trace with hash -340737330, now seen corresponding path program 1 times [2022-12-13 15:52:36,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:36,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697733222] [2022-12-13 15:52:36,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:36,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:37,086 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:37,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860933040] [2022-12-13 15:52:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:37,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:37,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:37,087 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:37,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 15:52:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:37,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 3574 conjuncts, 36 conjunts are in the unsatisfiable core [2022-12-13 15:52:37,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 216 proven. 1 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-12-13 15:52:37,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:52:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 76 proven. 13 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-12-13 15:52:38,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:38,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697733222] [2022-12-13 15:52:38,766 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:38,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860933040] [2022-12-13 15:52:38,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860933040] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:52:38,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:52:38,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 22 [2022-12-13 15:52:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660325119] [2022-12-13 15:52:38,766 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:52:38,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 15:52:38,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:38,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 15:52:38,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2022-12-13 15:52:38,768 INFO L87 Difference]: Start difference. First operand 1469 states and 2740 transitions. Second operand has 22 states, 18 states have (on average 7.333333333333333) internal successors, (132), 15 states have internal predecessors, (132), 6 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (36), 8 states have call predecessors, (36), 5 states have call successors, (36) [2022-12-13 15:52:40,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:40,366 INFO L93 Difference]: Finished difference Result 2541 states and 4817 transitions. [2022-12-13 15:52:40,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 15:52:40,367 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 7.333333333333333) internal successors, (132), 15 states have internal predecessors, (132), 6 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (36), 8 states have call predecessors, (36), 5 states have call successors, (36) Word has length 314 [2022-12-13 15:52:40,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:40,374 INFO L225 Difference]: With dead ends: 2541 [2022-12-13 15:52:40,374 INFO L226 Difference]: Without dead ends: 1196 [2022-12-13 15:52:40,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 602 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-12-13 15:52:40,382 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 20 mSDsluCounter, 11164 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 11767 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:40,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 11767 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 15:52:40,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2022-12-13 15:52:40,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1137. [2022-12-13 15:52:40,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 700 states have (on average 1.2314285714285715) internal successors, (862), 711 states have internal predecessors, (862), 365 states have call successors, (365), 52 states have call predecessors, (365), 70 states have return successors, (752), 375 states have call predecessors, (752), 362 states have call successors, (752) [2022-12-13 15:52:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1979 transitions. [2022-12-13 15:52:40,564 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1979 transitions. Word has length 314 [2022-12-13 15:52:40,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:40,564 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1979 transitions. [2022-12-13 15:52:40,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 7.333333333333333) internal successors, (132), 15 states have internal predecessors, (132), 6 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (36), 8 states have call predecessors, (36), 5 states have call successors, (36) [2022-12-13 15:52:40,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1979 transitions. [2022-12-13 15:52:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-12-13 15:52:40,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:40,566 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:40,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-12-13 15:52:40,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 15:52:40,766 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:40,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:40,767 INFO L85 PathProgramCache]: Analyzing trace with hash -709494241, now seen corresponding path program 2 times [2022-12-13 15:52:40,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:40,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619639221] [2022-12-13 15:52:40,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:40,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:40,824 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:40,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609594969] [2022-12-13 15:52:40,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:52:40,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:40,826 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:40,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 15:52:41,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:52:41,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:52:41,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 3562 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-13 15:52:41,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:42,024 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 [2022-12-13 15:52:42,068 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-12-13 15:52:42,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:42,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:42,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619639221] [2022-12-13 15:52:42,068 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:42,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609594969] [2022-12-13 15:52:42,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609594969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:42,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:42,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 15:52:42,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800911514] [2022-12-13 15:52:42,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:42,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 15:52:42,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:42,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 15:52:42,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:52:42,070 INFO L87 Difference]: Start difference. First operand 1137 states and 1979 transitions. Second operand has 12 states, 12 states have (on average 10.5) internal successors, (126), 12 states have internal predecessors, (126), 7 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2022-12-13 15:52:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:53,377 INFO L93 Difference]: Finished difference Result 2448 states and 4630 transitions. [2022-12-13 15:52:53,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 15:52:53,378 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.5) internal successors, (126), 12 states have internal predecessors, (126), 7 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) Word has length 296 [2022-12-13 15:52:53,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:53,387 INFO L225 Difference]: With dead ends: 2448 [2022-12-13 15:52:53,387 INFO L226 Difference]: Without dead ends: 1347 [2022-12-13 15:52:53,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=194, Invalid=798, Unknown=0, NotChecked=0, Total=992 [2022-12-13 15:52:53,395 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 292 mSDsluCounter, 3695 mSDsCounter, 0 mSdLazyCounter, 4287 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 4229 SdHoareTripleChecker+Invalid, 4500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 4287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:53,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 4229 Invalid, 4500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 4287 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-12-13 15:52:53,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2022-12-13 15:52:53,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1168. [2022-12-13 15:52:53,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 728 states have (on average 1.223901098901099) internal successors, (891), 734 states have internal predecessors, (891), 366 states have call successors, (366), 52 states have call predecessors, (366), 72 states have return successors, (808), 383 states have call predecessors, (808), 363 states have call successors, (808) [2022-12-13 15:52:53,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 2065 transitions. [2022-12-13 15:52:53,592 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 2065 transitions. Word has length 296 [2022-12-13 15:52:53,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:53,593 INFO L495 AbstractCegarLoop]: Abstraction has 1168 states and 2065 transitions. [2022-12-13 15:52:53,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.5) internal successors, (126), 12 states have internal predecessors, (126), 7 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2022-12-13 15:52:53,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 2065 transitions. [2022-12-13 15:52:53,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-12-13 15:52:53,594 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:53,594 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:53,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-12-13 15:52:53,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:53,796 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:53,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:53,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2126398710, now seen corresponding path program 1 times [2022-12-13 15:52:53,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:53,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359847084] [2022-12-13 15:52:53,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:53,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:53,888 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:53,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255628381] [2022-12-13 15:52:53,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:53,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:53,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:53,889 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:53,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 15:52:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:54,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 3579 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 15:52:54,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2022-12-13 15:52:54,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:54,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:54,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359847084] [2022-12-13 15:52:54,649 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:54,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255628381] [2022-12-13 15:52:54,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255628381] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:54,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:54,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:52:54,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051636101] [2022-12-13 15:52:54,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:54,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:52:54,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:54,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:52:54,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:52:54,651 INFO L87 Difference]: Start difference. First operand 1168 states and 2065 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 15:52:54,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:54,888 INFO L93 Difference]: Finished difference Result 2380 states and 4546 transitions. [2022-12-13 15:52:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:52:54,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 306 [2022-12-13 15:52:54,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:54,895 INFO L225 Difference]: With dead ends: 2380 [2022-12-13 15:52:54,896 INFO L226 Difference]: Without dead ends: 1248 [2022-12-13 15:52:54,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:52:54,902 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 8 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:54,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2520 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:52:54,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-12-13 15:52:55,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1200. [2022-12-13 15:52:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 760 states have (on average 1.2118421052631578) internal successors, (921), 766 states have internal predecessors, (921), 366 states have call successors, (366), 52 states have call predecessors, (366), 72 states have return successors, (808), 383 states have call predecessors, (808), 363 states have call successors, (808) [2022-12-13 15:52:55,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 2095 transitions. [2022-12-13 15:52:55,080 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 2095 transitions. Word has length 306 [2022-12-13 15:52:55,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:55,080 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 2095 transitions. [2022-12-13 15:52:55,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 15:52:55,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 2095 transitions. [2022-12-13 15:52:55,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-12-13 15:52:55,082 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:55,082 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:55,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-12-13 15:52:55,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:55,283 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:55,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:55,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1640659949, now seen corresponding path program 3 times [2022-12-13 15:52:55,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:55,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467706805] [2022-12-13 15:52:55,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:55,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:55,351 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:55,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1685732022] [2022-12-13 15:52:55,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:52:55,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:55,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:55,352 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:55,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 15:52:56,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-13 15:52:56,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:52:56,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 2622 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-13 15:52:56,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:56,781 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-12-13 15:52:56,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:56,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:56,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467706805] [2022-12-13 15:52:56,782 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:56,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685732022] [2022-12-13 15:52:56,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685732022] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:56,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:56,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 15:52:56,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238662632] [2022-12-13 15:52:56,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:56,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 15:52:56,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:56,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 15:52:56,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:52:56,784 INFO L87 Difference]: Start difference. First operand 1200 states and 2095 transitions. Second operand has 11 states, 11 states have (on average 12.0) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 15:52:57,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:57,197 INFO L93 Difference]: Finished difference Result 2345 states and 4304 transitions. [2022-12-13 15:52:57,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 15:52:57,198 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) Word has length 300 [2022-12-13 15:52:57,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:57,205 INFO L225 Difference]: With dead ends: 2345 [2022-12-13 15:52:57,205 INFO L226 Difference]: Without dead ends: 1181 [2022-12-13 15:52:57,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:52:57,213 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 16 mSDsluCounter, 5651 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6286 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:57,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6286 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 15:52:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2022-12-13 15:52:57,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1150. [2022-12-13 15:52:57,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 710 states have (on average 1.195774647887324) internal successors, (849), 717 states have internal predecessors, (849), 366 states have call successors, (366), 52 states have call predecessors, (366), 72 states have return successors, (808), 382 states have call predecessors, (808), 363 states have call successors, (808) [2022-12-13 15:52:57,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 2023 transitions. [2022-12-13 15:52:57,397 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 2023 transitions. Word has length 300 [2022-12-13 15:52:57,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:57,397 INFO L495 AbstractCegarLoop]: Abstraction has 1150 states and 2023 transitions. [2022-12-13 15:52:57,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 15:52:57,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 2023 transitions. [2022-12-13 15:52:57,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-12-13 15:52:57,399 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:57,399 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-13 15:52:57,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 15:52:57,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:57,600 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:52:57,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:52:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash 778580459, now seen corresponding path program 1 times [2022-12-13 15:52:57,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:52:57,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096185621] [2022-12-13 15:52:57,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:57,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:52:57,653 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:52:57,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [830311293] [2022-12-13 15:52:57,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:52:57,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:52:57,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:52:57,654 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:52:57,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-13 15:52:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:52:58,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 3607 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:52:58,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:52:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-12-13 15:52:58,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:52:58,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:52:58,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096185621] [2022-12-13 15:52:58,405 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:52:58,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830311293] [2022-12-13 15:52:58,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830311293] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:52:58,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:52:58,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:52:58,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754005769] [2022-12-13 15:52:58,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:52:58,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:52:58,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:52:58,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:52:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:52:58,406 INFO L87 Difference]: Start difference. First operand 1150 states and 2023 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 15:52:59,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:52:59,810 INFO L93 Difference]: Finished difference Result 2269 states and 4372 transitions. [2022-12-13 15:52:59,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:52:59,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 307 [2022-12-13 15:52:59,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:52:59,817 INFO L225 Difference]: With dead ends: 2269 [2022-12-13 15:52:59,817 INFO L226 Difference]: Without dead ends: 1155 [2022-12-13 15:52:59,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:52:59,824 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 15 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:52:59,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2348 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 15:52:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-12-13 15:52:59,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1150. [2022-12-13 15:52:59,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 710 states have (on average 1.1929577464788732) internal successors, (847), 717 states have internal predecessors, (847), 366 states have call successors, (366), 52 states have call predecessors, (366), 72 states have return successors, (808), 382 states have call predecessors, (808), 363 states have call successors, (808) [2022-12-13 15:52:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 2021 transitions. [2022-12-13 15:52:59,997 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 2021 transitions. Word has length 307 [2022-12-13 15:52:59,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:52:59,997 INFO L495 AbstractCegarLoop]: Abstraction has 1150 states and 2021 transitions. [2022-12-13 15:52:59,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 15:52:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 2021 transitions. [2022-12-13 15:52:59,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-12-13 15:52:59,999 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:52:59,999 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:53:00,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-12-13 15:53:00,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:00,200 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:53:00,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:53:00,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1205314802, now seen corresponding path program 1 times [2022-12-13 15:53:00,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:53:00,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037804560] [2022-12-13 15:53:00,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:00,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:53:00,296 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 15:53:00,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637986489] [2022-12-13 15:53:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:53:00,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:53:00,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:53:00,297 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:53:00,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ece6106-810e-4918-ae4d-3657f26635b4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 15:53:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:53:01,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 3598 conjuncts, 77 conjunts are in the unsatisfiable core [2022-12-13 15:53:01,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:53:02,104 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 25 treesize of output 17 [2022-12-13 15:53:02,108 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 21 treesize of output 13 [2022-12-13 15:53:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-12-13 15:53:02,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:53:02,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:53:02,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037804560] [2022-12-13 15:53:02,150 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:53:02,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637986489] [2022-12-13 15:53:02,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637986489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:53:02,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:53:02,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 15:53:02,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967916916] [2022-12-13 15:53:02,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:53:02,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 15:53:02,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:53:02,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 15:53:02,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 15:53:02,152 INFO L87 Difference]: Start difference. First operand 1150 states and 2021 transitions. Second operand has 16 states, 16 states have (on average 8.75) internal successors, (140), 15 states have internal predecessors, (140), 8 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2022-12-13 15:53:04,309 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] [2022-12-13 15:53:06,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:08,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:10,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:12,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:14,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-13 15:53:16,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:18,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:22,105 WARN L539 Checker$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] [2022-12-13 15:53:28,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:29,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 15:53:31,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:35,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 15:53:39,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:41,459 WARN L539 Checker$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] [2022-12-13 15:53:44,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:46,418 WARN L539 Checker$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] [2022-12-13 15:53:48,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:50,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:52,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 15:53:55,058 WARN L539 Checker$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]