./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/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_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/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_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/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 d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:29:40,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:29:40,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:29:40,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:29:40,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:29:40,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:29:40,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:29:40,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:29:40,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:29:40,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:29:40,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:29:40,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:29:40,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:29:40,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:29:40,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:29:40,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:29:40,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:29:40,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:29:40,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:29:40,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:29:40,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:29:40,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:29:40,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:29:40,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:29:40,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:29:40,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:29:40,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:29:40,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:29:40,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:29:40,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:29:40,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:29:40,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:29:40,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:29:40,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:29:40,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:29:40,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:29:40,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:29:40,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:29:40,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:29:40,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:29:40,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:29:40,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 13:29:40,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:29:40,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:29:40,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:29:40,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:29:40,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:29:40,373 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:29:40,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:29:40,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:29:40,374 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:29:40,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:29:40,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:29:40,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:29:40,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:29:40,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:29:40,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:29:40,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:29:40,375 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:29:40,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:29:40,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:29:40,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:29:40,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:29:40,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:29:40,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:29:40,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:29:40,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:29:40,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:29:40,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:29:40,377 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:29:40,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:29:40,377 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:29:40,377 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:29:40,378 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:29:40,378 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_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2022-12-13 13:29:40,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:29:40,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:29:40,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:29:40,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:29:40,578 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:29:40,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-12-13 13:29:43,266 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:29:43,527 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:29:43,527 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-12-13 13:29:43,547 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/data/35478b8d3/414e30bfd8cf4349b6fbeaf374145504/FLAG95a03454f [2022-12-13 13:29:43,557 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/data/35478b8d3/414e30bfd8cf4349b6fbeaf374145504 [2022-12-13 13:29:43,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:29:43,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:29:43,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:29:43,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:29:43,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:29:43,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:29:43" (1/1) ... [2022-12-13 13:29:43,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d87b256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:43, skipping insertion in model container [2022-12-13 13:29:43,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:29:43" (1/1) ... [2022-12-13 13:29:43,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:29:43,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:29:43,805 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_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-12-13 13:29:43,811 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_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-12-13 13:29:44,405 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,409 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,410 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,410 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,411 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,411 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,413 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,431 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,431 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,432 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,433 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,433 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,435 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,435 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,435 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,436 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,436 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,487 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 13:29:44,488 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 13:29:44,488 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 13:29:44,492 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 13:29:44,493 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 13:29:44,494 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 13:29:44,693 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 13:29:44,695 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 13:29:44,696 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 13:29:44,697 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 13:29:44,698 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 13:29:44,700 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 13:29:44,701 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 13:29:44,701 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 13:29:44,702 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 13:29:44,703 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 13:29:44,703 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 13:29:44,825 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 13:29:44,843 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,844 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,846 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,847 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,848 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,849 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,852 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,852 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,852 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,853 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,853 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,853 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,881 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 13:29:44,892 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,892 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,893 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,893 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,893 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,893 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,893 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,894 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 13:29:44,894 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,894 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,894 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,895 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,895 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,895 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,897 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,897 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,898 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,898 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,900 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,900 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,905 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,905 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,906 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:29:44,933 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:29:44,942 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_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-12-13 13:29:44,942 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_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-12-13 13:29:44,965 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,966 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,967 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,967 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,967 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,968 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,968 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,972 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,972 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,972 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,973 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,973 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,974 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,974 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:44,974 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,975 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,975 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:44,979 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 13:29:44,980 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 13:29:44,980 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 13:29:44,982 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 13:29:44,983 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 13:29:44,983 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 13:29:44,996 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 13:29:44,997 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 13:29:44,998 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 13:29:44,998 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 13:29:44,999 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 13:29:44,999 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 13:29:45,000 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 13:29:45,000 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 13:29:45,000 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 13:29:45,001 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 13:29:45,001 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 13:29:45,027 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 13:29:45,042 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,043 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,045 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,046 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,047 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,049 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,050 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,050 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,051 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,051 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,052 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,052 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 13:29:45,068 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 13:29:45,072 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,073 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,073 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,073 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,075 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 13:29:45,075 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,075 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,076 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,076 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,076 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,077 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,077 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,078 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,078 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,078 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,080 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,081 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,086 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 13:29:45,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:29:45,291 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:29:45,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45 WrapperNode [2022-12-13 13:29:45,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:29:45,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:29:45,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:29:45,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:29:45,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,392 INFO L138 Inliner]: procedures = 697, calls = 1878, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1162 [2022-12-13 13:29:45,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:29:45,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:29:45,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:29:45,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:29:45,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:29:45,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:29:45,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:29:45,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:29:45,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (1/1) ... [2022-12-13 13:29:45,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:29:45,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:45,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:29:45,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:29:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-12-13 13:29:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-12-13 13:29:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2022-12-13 13:29:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2022-12-13 13:29:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-13 13:29:45,525 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-13 13:29:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:29:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-13 13:29:45,525 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-13 13:29:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-13 13:29:45,525 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-13 13:29:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-13 13:29:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-13 13:29:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-12-13 13:29:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-12-13 13:29:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-12-13 13:29:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-12-13 13:29:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:29:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-13 13:29:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-13 13:29:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 13:29:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 13:29:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:29:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:29:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 13:29:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-12-13 13:29:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-12-13 13:29:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-13 13:29:45,528 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-13 13:29:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:29:45,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:29:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-13 13:29:45,528 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-13 13:29:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-13 13:29:45,529 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-13 13:29:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-12-13 13:29:45,529 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-12-13 13:29:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-13 13:29:45,529 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-13 13:29:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-12-13 13:29:45,529 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-12-13 13:29:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-13 13:29:45,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-13 13:29:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 13:29:45,530 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 13:29:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 13:29:45,530 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 13:29:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-13 13:29:45,530 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-13 13:29:45,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-12-13 13:29:45,531 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-12-13 13:29:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-12-13 13:29:45,531 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-12-13 13:29:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:29:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-12-13 13:29:45,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-12-13 13:29:45,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 13:29:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 13:29:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-12-13 13:29:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-12-13 13:29:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-13 13:29:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-13 13:29:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-13 13:29:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-13 13:29:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-12-13 13:29:45,533 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-12-13 13:29:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:29:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-13 13:29:45,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-13 13:29:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-12-13 13:29:45,533 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-12-13 13:29:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 13:29:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 13:29:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 13:29:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 13:29:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:29:45,810 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:29:45,812 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:29:46,986 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:29:46,992 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:29:46,993 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 13:29:46,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:29:46 BoogieIcfgContainer [2022-12-13 13:29:46,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:29:46,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:29:46,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:29:46,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:29:46,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:29:43" (1/3) ... [2022-12-13 13:29:46,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffa116a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:29:46, skipping insertion in model container [2022-12-13 13:29:46,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:29:45" (2/3) ... [2022-12-13 13:29:47,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ffa116a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:29:46, skipping insertion in model container [2022-12-13 13:29:47,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:29:46" (3/3) ... [2022-12-13 13:29:47,001 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2022-12-13 13:29:47,014 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:29:47,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 13:29:47,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:29:47,062 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;@7042ceb6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:29:47,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 13:29:47,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 537 states, 307 states have (on average 1.247557003257329) internal successors, (383), 310 states have internal predecessors, (383), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2022-12-13 13:29:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-13 13:29:47,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:47,078 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:47,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:47,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:47,083 INFO L85 PathProgramCache]: Analyzing trace with hash -2064741935, now seen corresponding path program 1 times [2022-12-13 13:29:47,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:47,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204409014] [2022-12-13 13:29:47,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:47,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 13:29:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 13:29:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 13:29:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:29:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:29:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 13:29:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:29:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:29:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 13:29:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 13:29:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 13:29:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 13:29:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:29:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 13:29:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:29:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 13:29:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 13:29:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 13:29:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 13:29:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 13:29:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 13:29:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 13:29:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 13:29:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 13:29:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 13:29:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 13:29:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 13:29:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-12-13 13:29:47,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:29:47,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204409014] [2022-12-13 13:29:47,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204409014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:29:47,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:29:47,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:29:47,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906627306] [2022-12-13 13:29:47,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:29:47,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:29:47,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:29:47,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:29:47,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:29:47,827 INFO L87 Difference]: Start difference. First operand has 537 states, 307 states have (on average 1.247557003257329) internal successors, (383), 310 states have internal predecessors, (383), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-13 13:29:49,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:29:49,389 INFO L93 Difference]: Finished difference Result 1219 states and 2024 transitions. [2022-12-13 13:29:49,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:29:49,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2022-12-13 13:29:49,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:29:49,407 INFO L225 Difference]: With dead ends: 1219 [2022-12-13 13:29:49,407 INFO L226 Difference]: Without dead ends: 688 [2022-12-13 13:29:49,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:29:49,419 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 337 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:29:49,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1171 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 13:29:49,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-12-13 13:29:49,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 530. [2022-12-13 13:29:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 301 states have (on average 1.2292358803986712) internal successors, (370), 303 states have internal predecessors, (370), 196 states have call successors, (196), 32 states have call predecessors, (196), 31 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2022-12-13 13:29:49,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 760 transitions. [2022-12-13 13:29:49,526 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 760 transitions. Word has length 167 [2022-12-13 13:29:49,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:29:49,526 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 760 transitions. [2022-12-13 13:29:49,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-13 13:29:49,527 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 760 transitions. [2022-12-13 13:29:49,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-13 13:29:49,531 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:49,532 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:49,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:29:49,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:49,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:49,533 INFO L85 PathProgramCache]: Analyzing trace with hash 374832211, now seen corresponding path program 1 times [2022-12-13 13:29:49,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:49,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918745383] [2022-12-13 13:29:49,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:49,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 13:29:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 13:29:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 13:29:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:29:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:29:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 13:29:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:29:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:29:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 13:29:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:49,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 13:29:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 13:29:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 13:29:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:29:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 13:29:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:29:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 13:29:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 13:29:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 13:29:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 13:29:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 13:29:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 13:29:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 13:29:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 13:29:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 13:29:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 13:29:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 13:29:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 13:29:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-12-13 13:29:50,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:29:50,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918745383] [2022-12-13 13:29:50,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918745383] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:29:50,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630504192] [2022-12-13 13:29:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:50,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:50,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:50,120 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:29:50,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:29:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:50,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 2434 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:29:50,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:29:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-12-13 13:29:50,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:29:50,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630504192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:29:50,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:29:50,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-12-13 13:29:50,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997846841] [2022-12-13 13:29:50,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:29:50,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:29:50,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:29:50,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:29:50,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:29:50,593 INFO L87 Difference]: Start difference. First operand 530 states and 760 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-13 13:29:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:29:50,942 INFO L93 Difference]: Finished difference Result 1029 states and 1488 transitions. [2022-12-13 13:29:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:29:50,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 167 [2022-12-13 13:29:50,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:29:50,947 INFO L225 Difference]: With dead ends: 1029 [2022-12-13 13:29:50,947 INFO L226 Difference]: Without dead ends: 532 [2022-12-13 13:29:50,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-12-13 13:29:50,952 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 786 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:29:50,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2651 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 13:29:50,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-12-13 13:29:50,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2022-12-13 13:29:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 302 states have (on average 1.228476821192053) internal successors, (371), 305 states have internal predecessors, (371), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (204), 194 states have call predecessors, (204), 194 states have call successors, (204) [2022-12-13 13:29:50,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 771 transitions. [2022-12-13 13:29:50,996 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 771 transitions. Word has length 167 [2022-12-13 13:29:50,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:29:50,996 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 771 transitions. [2022-12-13 13:29:50,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-13 13:29:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 771 transitions. [2022-12-13 13:29:51,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 13:29:51,000 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:51,000 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:51,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:29:51,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:51,201 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:51,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:51,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1919571972, now seen corresponding path program 1 times [2022-12-13 13:29:51,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:51,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624982738] [2022-12-13 13:29:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:51,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 13:29:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 13:29:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 13:29:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:29:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:29:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 13:29:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:29:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 13:29:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 13:29:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 13:29:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 13:29:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:29:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 13:29:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 13:29:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 13:29:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 13:29:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 13:29:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:29:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 13:29:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 13:29:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 13:29:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 13:29:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 13:29:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 13:29:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 13:29:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 13:29:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 13:29:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 13:29:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-12-13 13:29:51,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:29:51,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624982738] [2022-12-13 13:29:51,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624982738] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:29:51,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689318981] [2022-12-13 13:29:51,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:51,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:51,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:51,856 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:29:51,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:29:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:52,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 13:29:52,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:29:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-12-13 13:29:52,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:29:52,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689318981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:29:52,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:29:52,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-12-13 13:29:52,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128659443] [2022-12-13 13:29:52,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:29:52,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:29:52,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:29:52,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:29:52,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-12-13 13:29:52,301 INFO L87 Difference]: Start difference. First operand 532 states and 771 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 13:29:52,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:29:52,865 INFO L93 Difference]: Finished difference Result 1052 states and 1568 transitions. [2022-12-13 13:29:52,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:29:52,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 175 [2022-12-13 13:29:52,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:29:52,870 INFO L225 Difference]: With dead ends: 1052 [2022-12-13 13:29:52,870 INFO L226 Difference]: Without dead ends: 553 [2022-12-13 13:29:52,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-12-13 13:29:52,874 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 827 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:29:52,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 3765 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 13:29:52,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-12-13 13:29:52,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 551. [2022-12-13 13:29:52,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 318 states have (on average 1.2358490566037736) internal successors, (393), 321 states have internal predecessors, (393), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2022-12-13 13:29:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 829 transitions. [2022-12-13 13:29:52,915 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 829 transitions. Word has length 175 [2022-12-13 13:29:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:29:52,916 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 829 transitions. [2022-12-13 13:29:52,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 13:29:52,916 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 829 transitions. [2022-12-13 13:29:52,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-12-13 13:29:52,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:52,920 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:52,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:29:53,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:53,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:53,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:53,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1259751837, now seen corresponding path program 1 times [2022-12-13 13:29:53,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:53,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132437330] [2022-12-13 13:29:53,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:53,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:53,201 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:29:53,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117104370] [2022-12-13 13:29:53,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:53,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:53,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:53,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:29:53,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:29:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:53,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 2625 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 13:29:53,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:29:53,629 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-12-13 13:29:53,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:29:53,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:29:53,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132437330] [2022-12-13 13:29:53,629 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:29:53,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117104370] [2022-12-13 13:29:53,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117104370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:29:53,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:29:53,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:29:53,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853038803] [2022-12-13 13:29:53,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:29:53,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:29:53,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:29:53,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:29:53,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:29:53,631 INFO L87 Difference]: Start difference. First operand 551 states and 829 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-13 13:29:53,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:29:53,985 INFO L93 Difference]: Finished difference Result 1077 states and 1650 transitions. [2022-12-13 13:29:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:29:53,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 190 [2022-12-13 13:29:53,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:29:53,990 INFO L225 Difference]: With dead ends: 1077 [2022-12-13 13:29:53,990 INFO L226 Difference]: Without dead ends: 559 [2022-12-13 13:29:53,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 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 13:29:53,993 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 810 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 3281 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:29:53,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 3281 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 13:29:53,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-12-13 13:29:54,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 551. [2022-12-13 13:29:54,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 318 states have (on average 1.2358490566037736) internal successors, (393), 321 states have internal predecessors, (393), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2022-12-13 13:29:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 829 transitions. [2022-12-13 13:29:54,031 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 829 transitions. Word has length 190 [2022-12-13 13:29:54,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:29:54,032 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 829 transitions. [2022-12-13 13:29:54,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-13 13:29:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 829 transitions. [2022-12-13 13:29:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-12-13 13:29:54,035 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:54,036 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:54,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:29:54,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:54,236 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:54,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1496894689, now seen corresponding path program 1 times [2022-12-13 13:29:54,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:54,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122378280] [2022-12-13 13:29:54,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:54,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:54,310 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:29:54,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537866944] [2022-12-13 13:29:54,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:54,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:54,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:54,312 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:29:54,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:29:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:54,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 2697 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 13:29:54,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:29:54,838 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-12-13 13:29:54,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:29:54,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:29:54,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122378280] [2022-12-13 13:29:54,839 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:29:54,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537866944] [2022-12-13 13:29:54,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537866944] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:29:54,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:29:54,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:29:54,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593469176] [2022-12-13 13:29:54,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:29:54,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:29:54,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:29:54,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:29:54,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:29:54,841 INFO L87 Difference]: Start difference. First operand 551 states and 829 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2022-12-13 13:29:55,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:29:55,482 INFO L93 Difference]: Finished difference Result 1087 states and 1657 transitions. [2022-12-13 13:29:55,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:29:55,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 206 [2022-12-13 13:29:55,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:29:55,487 INFO L225 Difference]: With dead ends: 1087 [2022-12-13 13:29:55,487 INFO L226 Difference]: Without dead ends: 569 [2022-12-13 13:29:55,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-12-13 13:29:55,491 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 860 mSDsluCounter, 3692 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 4344 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 13:29:55,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 4344 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 13:29:55,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-12-13 13:29:55,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 551. [2022-12-13 13:29:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 318 states have (on average 1.2358490566037736) internal successors, (393), 321 states have internal predecessors, (393), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2022-12-13 13:29:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 829 transitions. [2022-12-13 13:29:55,538 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 829 transitions. Word has length 206 [2022-12-13 13:29:55,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:29:55,539 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 829 transitions. [2022-12-13 13:29:55,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2022-12-13 13:29:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 829 transitions. [2022-12-13 13:29:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-12-13 13:29:55,542 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:55,542 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:55,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:29:55,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:55,743 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:55,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:55,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1731548032, now seen corresponding path program 2 times [2022-12-13 13:29:55,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:55,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103017980] [2022-12-13 13:29:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:55,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:55,814 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:29:55,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067162209] [2022-12-13 13:29:55,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:29:55,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:55,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:55,815 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:29:55,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:29:56,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:29:56,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:29:56,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 2838 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 13:29:56,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:29:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-12-13 13:29:56,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:29:56,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:29:56,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103017980] [2022-12-13 13:29:56,390 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:29:56,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067162209] [2022-12-13 13:29:56,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067162209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:29:56,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:29:56,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:29:56,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251773628] [2022-12-13 13:29:56,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:29:56,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:29:56,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:29:56,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:29:56,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:29:56,392 INFO L87 Difference]: Start difference. First operand 551 states and 829 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2022-12-13 13:29:56,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:29:56,723 INFO L93 Difference]: Finished difference Result 1063 states and 1610 transitions. [2022-12-13 13:29:56,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:29:56,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 221 [2022-12-13 13:29:56,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:29:56,726 INFO L225 Difference]: With dead ends: 1063 [2022-12-13 13:29:56,726 INFO L226 Difference]: Without dead ends: 553 [2022-12-13 13:29:56,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:29:56,728 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 838 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:29:56,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 3278 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 13:29:56,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-12-13 13:29:56,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2022-12-13 13:29:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 319 states have (on average 1.2351097178683386) internal successors, (394), 323 states have internal predecessors, (394), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (246), 197 states have call predecessors, (246), 196 states have call successors, (246) [2022-12-13 13:29:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 838 transitions. [2022-12-13 13:29:56,749 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 838 transitions. Word has length 221 [2022-12-13 13:29:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:29:56,750 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 838 transitions. [2022-12-13 13:29:56,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2022-12-13 13:29:56,750 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 838 transitions. [2022-12-13 13:29:56,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-13 13:29:56,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:56,751 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:56,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 13:29:56,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:56,952 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:56,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash 704505135, now seen corresponding path program 1 times [2022-12-13 13:29:56,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:56,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322014517] [2022-12-13 13:29:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:56,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:57,020 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:29:57,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [116773180] [2022-12-13 13:29:57,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:57,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:57,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:57,022 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:29:57,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 13:29:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:29:57,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 2888 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 13:29:57,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:29:57,526 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-12-13 13:29:57,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:29:57,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:29:57,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322014517] [2022-12-13 13:29:57,527 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:29:57,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116773180] [2022-12-13 13:29:57,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116773180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:29:57,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:29:57,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:29:57,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107668990] [2022-12-13 13:29:57,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:29:57,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:29:57,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:29:57,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:29:57,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:29:57,529 INFO L87 Difference]: Start difference. First operand 553 states and 838 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-12-13 13:29:58,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:29:58,076 INFO L93 Difference]: Finished difference Result 1081 states and 1648 transitions. [2022-12-13 13:29:58,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:29:58,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 229 [2022-12-13 13:29:58,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:29:58,079 INFO L225 Difference]: With dead ends: 1081 [2022-12-13 13:29:58,080 INFO L226 Difference]: Without dead ends: 569 [2022-12-13 13:29:58,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-12-13 13:29:58,082 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 849 mSDsluCounter, 3762 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 4436 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 13:29:58,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 4436 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 13:29:58,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-12-13 13:29:58,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 567. [2022-12-13 13:29:58,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 332 states have (on average 1.2409638554216869) internal successors, (412), 335 states have internal predecessors, (412), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2022-12-13 13:29:58,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 858 transitions. [2022-12-13 13:29:58,104 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 858 transitions. Word has length 229 [2022-12-13 13:29:58,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:29:58,104 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 858 transitions. [2022-12-13 13:29:58,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-12-13 13:29:58,105 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 858 transitions. [2022-12-13 13:29:58,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-12-13 13:29:58,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:58,106 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:58,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 13:29:58,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 13:29:58,308 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:58,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1333093850, now seen corresponding path program 2 times [2022-12-13 13:29:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:58,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172933173] [2022-12-13 13:29:58,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:58,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:58,445 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:29:58,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789521712] [2022-12-13 13:29:58,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:29:58,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:58,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:58,447 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:29:58,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 13:29:58,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:29:58,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:29:58,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 13:29:58,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:29:58,923 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-12-13 13:29:58,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:29:58,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:29:58,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172933173] [2022-12-13 13:29:58,924 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:29:58,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789521712] [2022-12-13 13:29:58,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789521712] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:29:58,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:29:58,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:29:58,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526069447] [2022-12-13 13:29:58,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:29:58,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:29:58,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:29:58,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:29:58,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:29:58,925 INFO L87 Difference]: Start difference. First operand 567 states and 858 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-12-13 13:29:59,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:29:59,249 INFO L93 Difference]: Finished difference Result 1101 states and 1688 transitions. [2022-12-13 13:29:59,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:29:59,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 244 [2022-12-13 13:29:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:29:59,253 INFO L225 Difference]: With dead ends: 1101 [2022-12-13 13:29:59,253 INFO L226 Difference]: Without dead ends: 575 [2022-12-13 13:29:59,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 240 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 13:29:59,255 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 862 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 3899 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:29:59,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 3899 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 13:29:59,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-12-13 13:29:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 567. [2022-12-13 13:29:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 332 states have (on average 1.2409638554216869) internal successors, (412), 335 states have internal predecessors, (412), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2022-12-13 13:29:59,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 858 transitions. [2022-12-13 13:29:59,276 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 858 transitions. Word has length 244 [2022-12-13 13:29:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:29:59,276 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 858 transitions. [2022-12-13 13:29:59,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-12-13 13:29:59,277 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 858 transitions. [2022-12-13 13:29:59,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-12-13 13:29:59,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:29:59,278 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:29:59,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 13:29:59,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 13:29:59,480 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:29:59,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:29:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2083883891, now seen corresponding path program 3 times [2022-12-13 13:29:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:29:59,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343499242] [2022-12-13 13:29:59,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:29:59,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:29:59,651 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:29:59,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265153989] [2022-12-13 13:29:59,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:29:59,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:29:59,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:29:59,652 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:29:59,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 13:30:00,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 13:30:00,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:30:00,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 13:30:00,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:00,420 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-12-13 13:30:00,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:00,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:00,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343499242] [2022-12-13 13:30:00,420 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:00,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265153989] [2022-12-13 13:30:00,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265153989] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:00,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:00,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:30:00,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609990707] [2022-12-13 13:30:00,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:00,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:30:00,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:00,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:30:00,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:30:00,422 INFO L87 Difference]: Start difference. First operand 567 states and 858 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-13 13:30:00,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:00,661 INFO L93 Difference]: Finished difference Result 1076 states and 1642 transitions. [2022-12-13 13:30:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:30:00,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 275 [2022-12-13 13:30:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:00,664 INFO L225 Difference]: With dead ends: 1076 [2022-12-13 13:30:00,665 INFO L226 Difference]: Without dead ends: 567 [2022-12-13 13:30:00,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:30:00,667 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 2 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:00,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3447 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 13:30:00,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-12-13 13:30:00,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2022-12-13 13:30:00,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 332 states have (on average 1.2409638554216869) internal successors, (412), 335 states have internal predecessors, (412), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (246), 199 states have call predecessors, (246), 197 states have call successors, (246) [2022-12-13 13:30:00,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 857 transitions. [2022-12-13 13:30:00,689 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 857 transitions. Word has length 275 [2022-12-13 13:30:00,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:00,689 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 857 transitions. [2022-12-13 13:30:00,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-13 13:30:00,689 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 857 transitions. [2022-12-13 13:30:00,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-12-13 13:30:00,691 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:00,691 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:00,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 13:30:00,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:00,892 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:00,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:00,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1587536061, now seen corresponding path program 4 times [2022-12-13 13:30:00,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:00,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570485999] [2022-12-13 13:30:00,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:00,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:00,981 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:00,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328032764] [2022-12-13 13:30:00,982 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:30:00,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:00,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:00,983 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:00,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 13:30:01,318 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:30:01,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:30:01,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 13:30:01,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-12-13 13:30:01,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:01,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:01,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570485999] [2022-12-13 13:30:01,373 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:01,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328032764] [2022-12-13 13:30:01,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328032764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:01,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:01,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:30:01,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936136057] [2022-12-13 13:30:01,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:01,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:30:01,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:01,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:30:01,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:30:01,375 INFO L87 Difference]: Start difference. First operand 567 states and 857 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2022-12-13 13:30:01,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:01,840 INFO L93 Difference]: Finished difference Result 1220 states and 1863 transitions. [2022-12-13 13:30:01,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:30:01,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) Word has length 275 [2022-12-13 13:30:01,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:01,846 INFO L225 Difference]: With dead ends: 1220 [2022-12-13 13:30:01,846 INFO L226 Difference]: Without dead ends: 706 [2022-12-13 13:30:01,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 269 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 13:30:01,848 INFO L413 NwaCegarLoop]: 805 mSDtfsCounter, 158 mSDsluCounter, 4451 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 5256 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:01,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 5256 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 13:30:01,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-12-13 13:30:01,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 664. [2022-12-13 13:30:01,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 398 states have (on average 1.2663316582914572) internal successors, (504), 403 states have internal predecessors, (504), 228 states have call successors, (228), 33 states have call predecessors, (228), 36 states have return successors, (289), 227 states have call predecessors, (289), 226 states have call successors, (289) [2022-12-13 13:30:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 1021 transitions. [2022-12-13 13:30:01,878 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 1021 transitions. Word has length 275 [2022-12-13 13:30:01,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:01,879 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 1021 transitions. [2022-12-13 13:30:01,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2022-12-13 13:30:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 1021 transitions. [2022-12-13 13:30:01,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-12-13 13:30:01,880 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:01,880 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:01,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 13:30:02,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 13:30:02,081 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:02,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:02,081 INFO L85 PathProgramCache]: Analyzing trace with hash 581319182, now seen corresponding path program 1 times [2022-12-13 13:30:02,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:02,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936740746] [2022-12-13 13:30:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:02,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:02,150 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:02,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521490563] [2022-12-13 13:30:02,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:02,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:02,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:02,152 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:02,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 13:30:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:02,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 3574 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 13:30:02,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-12-13 13:30:02,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:02,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:02,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936740746] [2022-12-13 13:30:02,737 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:02,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521490563] [2022-12-13 13:30:02,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521490563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:02,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:02,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:30:02,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082049613] [2022-12-13 13:30:02,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:02,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:30:02,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:02,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:30:02,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:30:02,738 INFO L87 Difference]: Start difference. First operand 664 states and 1021 transitions. Second operand has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-12-13 13:30:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:03,150 INFO L93 Difference]: Finished difference Result 1189 states and 1825 transitions. [2022-12-13 13:30:03,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:30:03,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 313 [2022-12-13 13:30:03,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:03,155 INFO L225 Difference]: With dead ends: 1189 [2022-12-13 13:30:03,155 INFO L226 Difference]: Without dead ends: 572 [2022-12-13 13:30:03,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-12-13 13:30:03,157 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 911 mSDsluCounter, 3769 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 4447 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:03,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 4447 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 13:30:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-12-13 13:30:03,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 570. [2022-12-13 13:30:03,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 334 states have (on average 1.2395209580838322) internal successors, (414), 338 states have internal predecessors, (414), 199 states have call successors, (199), 32 states have call predecessors, (199), 35 states have return successors, (250), 199 states have call predecessors, (250), 197 states have call successors, (250) [2022-12-13 13:30:03,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 863 transitions. [2022-12-13 13:30:03,185 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 863 transitions. Word has length 313 [2022-12-13 13:30:03,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:03,185 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 863 transitions. [2022-12-13 13:30:03,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 6 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-12-13 13:30:03,185 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 863 transitions. [2022-12-13 13:30:03,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-13 13:30:03,187 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:03,187 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:03,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 13:30:03,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:03,388 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:03,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:03,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2034816447, now seen corresponding path program 1 times [2022-12-13 13:30:03,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:03,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122634836] [2022-12-13 13:30:03,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:03,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:03,520 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:03,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122043943] [2022-12-13 13:30:03,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:03,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:03,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:03,521 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:03,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 13:30:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:04,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 3505 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 13:30:04,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:04,155 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-12-13 13:30:04,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:04,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:04,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122634836] [2022-12-13 13:30:04,155 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:04,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122043943] [2022-12-13 13:30:04,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122043943] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:04,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:04,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 13:30:04,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888567080] [2022-12-13 13:30:04,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:04,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:30:04,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:04,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:30:04,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:30:04,157 INFO L87 Difference]: Start difference. First operand 570 states and 863 transitions. Second operand has 10 states, 9 states have (on average 14.777777777777779) internal successors, (133), 10 states have internal predecessors, (133), 6 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 6 states have call successors, (35) [2022-12-13 13:30:04,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:04,791 INFO L93 Difference]: Finished difference Result 1101 states and 1672 transitions. [2022-12-13 13:30:04,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:30:04,791 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.777777777777779) internal successors, (133), 10 states have internal predecessors, (133), 6 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 6 states have call successors, (35) Word has length 314 [2022-12-13 13:30:04,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:04,794 INFO L225 Difference]: With dead ends: 1101 [2022-12-13 13:30:04,794 INFO L226 Difference]: Without dead ends: 572 [2022-12-13 13:30:04,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-13 13:30:04,796 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 912 mSDsluCounter, 4272 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 4923 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:04,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 4923 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 13:30:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-12-13 13:30:04,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 554. [2022-12-13 13:30:04,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 320 states have (on average 1.234375) internal successors, (395), 324 states have internal predecessors, (395), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (239), 197 states have call predecessors, (239), 196 states have call successors, (239) [2022-12-13 13:30:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 832 transitions. [2022-12-13 13:30:04,815 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 832 transitions. Word has length 314 [2022-12-13 13:30:04,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:04,816 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 832 transitions. [2022-12-13 13:30:04,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.777777777777779) internal successors, (133), 10 states have internal predecessors, (133), 6 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 6 states have call successors, (35) [2022-12-13 13:30:04,816 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 832 transitions. [2022-12-13 13:30:04,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-13 13:30:04,817 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:04,817 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:04,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 13:30:05,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:05,018 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:05,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:05,018 INFO L85 PathProgramCache]: Analyzing trace with hash -2069139833, now seen corresponding path program 2 times [2022-12-13 13:30:05,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:05,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707427804] [2022-12-13 13:30:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:05,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:05,069 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:05,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942835251] [2022-12-13 13:30:05,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:30:05,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:05,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:05,070 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:05,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 13:30:05,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:30:05,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:30:05,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 3505 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 13:30:05,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 350 proven. 3 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-12-13 13:30:05,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:30:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 50 proven. 12 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-12-13 13:30:05,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:05,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707427804] [2022-12-13 13:30:05,944 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:05,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942835251] [2022-12-13 13:30:05,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942835251] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:30:05,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:30:05,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-12-13 13:30:05,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101905340] [2022-12-13 13:30:05,945 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:30:05,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 13:30:05,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:05,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 13:30:05,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-12-13 13:30:05,946 INFO L87 Difference]: Start difference. First operand 554 states and 832 transitions. Second operand has 16 states, 14 states have (on average 9.714285714285714) internal successors, (136), 16 states have internal predecessors, (136), 11 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (56), 7 states have call predecessors, (56), 11 states have call successors, (56) [2022-12-13 13:30:06,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:06,613 INFO L93 Difference]: Finished difference Result 1080 states and 1630 transitions. [2022-12-13 13:30:06,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:30:06,614 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 9.714285714285714) internal successors, (136), 16 states have internal predecessors, (136), 11 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (56), 7 states have call predecessors, (56), 11 states have call successors, (56) Word has length 314 [2022-12-13 13:30:06,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:06,617 INFO L225 Difference]: With dead ends: 1080 [2022-12-13 13:30:06,617 INFO L226 Difference]: Without dead ends: 573 [2022-12-13 13:30:06,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 636 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2022-12-13 13:30:06,627 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 968 mSDsluCounter, 5985 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:06,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 6637 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 13:30:06,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-12-13 13:30:06,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 567. [2022-12-13 13:30:06,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 332 states have (on average 1.2409638554216869) internal successors, (412), 335 states have internal predecessors, (412), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (240), 199 states have call predecessors, (240), 197 states have call successors, (240) [2022-12-13 13:30:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 851 transitions. [2022-12-13 13:30:06,660 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 851 transitions. Word has length 314 [2022-12-13 13:30:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:06,660 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 851 transitions. [2022-12-13 13:30:06,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 9.714285714285714) internal successors, (136), 16 states have internal predecessors, (136), 11 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (56), 7 states have call predecessors, (56), 11 states have call successors, (56) [2022-12-13 13:30:06,661 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 851 transitions. [2022-12-13 13:30:06,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-12-13 13:30:06,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:06,663 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:06,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 13:30:06,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 13:30:06,864 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:06,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:06,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1656148795, now seen corresponding path program 3 times [2022-12-13 13:30:06,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:06,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427524499] [2022-12-13 13:30:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:06,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:06,932 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:06,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [184083698] [2022-12-13 13:30:06,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:30:06,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:06,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:06,933 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:06,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 13:30:07,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 13:30:07,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:30:07,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 13:30:07,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2022-12-13 13:30:07,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:30:07,742 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2022-12-13 13:30:07,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:07,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427524499] [2022-12-13 13:30:07,743 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:07,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184083698] [2022-12-13 13:30:07,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184083698] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:30:07,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:30:07,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2022-12-13 13:30:07,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707030987] [2022-12-13 13:30:07,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:30:07,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:30:07,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:07,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:30:07,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:30:07,746 INFO L87 Difference]: Start difference. First operand 567 states and 851 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-13 13:30:07,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:07,988 INFO L93 Difference]: Finished difference Result 1077 states and 1631 transitions. [2022-12-13 13:30:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:30:07,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 344 [2022-12-13 13:30:07,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:07,992 INFO L225 Difference]: With dead ends: 1077 [2022-12-13 13:30:07,992 INFO L226 Difference]: Without dead ends: 569 [2022-12-13 13:30:07,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:30:07,994 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 41 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:07,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2807 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 13:30:07,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-12-13 13:30:08,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2022-12-13 13:30:08,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 334 states have (on average 1.2395209580838322) internal successors, (414), 336 states have internal predecessors, (414), 199 states have call successors, (199), 33 states have call predecessors, (199), 34 states have return successors, (239), 199 states have call predecessors, (239), 197 states have call successors, (239) [2022-12-13 13:30:08,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 852 transitions. [2022-12-13 13:30:08,014 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 852 transitions. Word has length 344 [2022-12-13 13:30:08,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:08,014 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 852 transitions. [2022-12-13 13:30:08,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-12-13 13:30:08,015 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 852 transitions. [2022-12-13 13:30:08,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-12-13 13:30:08,016 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:08,016 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:08,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 13:30:08,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 13:30:08,218 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:08,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:08,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1812936090, now seen corresponding path program 4 times [2022-12-13 13:30:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:08,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611295798] [2022-12-13 13:30:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:08,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:08,322 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:08,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161372676] [2022-12-13 13:30:08,322 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:30:08,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:08,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:08,323 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:08,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 13:30:08,944 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:30:08,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:30:08,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 3928 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 13:30:08,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:09,029 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2022-12-13 13:30:09,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:09,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:09,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611295798] [2022-12-13 13:30:09,030 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:09,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161372676] [2022-12-13 13:30:09,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161372676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:09,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:09,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:30:09,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178659767] [2022-12-13 13:30:09,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:09,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:30:09,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:09,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:30:09,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:30:09,031 INFO L87 Difference]: Start difference. First operand 569 states and 852 transitions. Second operand has 8 states, 7 states have (on average 14.0) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2022-12-13 13:30:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:09,314 INFO L93 Difference]: Finished difference Result 1085 states and 1624 transitions. [2022-12-13 13:30:09,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:30:09,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) Word has length 359 [2022-12-13 13:30:09,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:09,317 INFO L225 Difference]: With dead ends: 1085 [2022-12-13 13:30:09,317 INFO L226 Difference]: Without dead ends: 569 [2022-12-13 13:30:09,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:30:09,320 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 220 mSDsluCounter, 3756 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 4464 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:09,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 4464 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 13:30:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-12-13 13:30:09,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2022-12-13 13:30:09,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 334 states have (on average 1.2395209580838322) internal successors, (414), 336 states have internal predecessors, (414), 199 states have call successors, (199), 33 states have call predecessors, (199), 34 states have return successors, (236), 199 states have call predecessors, (236), 197 states have call successors, (236) [2022-12-13 13:30:09,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 849 transitions. [2022-12-13 13:30:09,350 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 849 transitions. Word has length 359 [2022-12-13 13:30:09,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:09,351 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 849 transitions. [2022-12-13 13:30:09,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.0) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 5 states have call predecessors, (31), 6 states have call successors, (31) [2022-12-13 13:30:09,351 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 849 transitions. [2022-12-13 13:30:09,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-13 13:30:09,353 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:09,353 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:09,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 13:30:09,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 13:30:09,554 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:09,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:09,554 INFO L85 PathProgramCache]: Analyzing trace with hash -898141761, now seen corresponding path program 1 times [2022-12-13 13:30:09,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:09,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140544905] [2022-12-13 13:30:09,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:09,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:09,618 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:09,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854948565] [2022-12-13 13:30:09,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:09,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:09,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:09,619 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:09,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 13:30:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:10,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 4069 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 13:30:10,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2022-12-13 13:30:10,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:10,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:10,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140544905] [2022-12-13 13:30:10,277 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:10,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854948565] [2022-12-13 13:30:10,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854948565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:10,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:10,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:30:10,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937415358] [2022-12-13 13:30:10,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:10,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:30:10,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:10,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:30:10,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:30:10,280 INFO L87 Difference]: Start difference. First operand 569 states and 849 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 13:30:10,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:10,694 INFO L93 Difference]: Finished difference Result 1159 states and 1772 transitions. [2022-12-13 13:30:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:30:10,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 374 [2022-12-13 13:30:10,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:10,697 INFO L225 Difference]: With dead ends: 1159 [2022-12-13 13:30:10,697 INFO L226 Difference]: Without dead ends: 623 [2022-12-13 13:30:10,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:30:10,700 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 23 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:10,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3571 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 13:30:10,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2022-12-13 13:30:10,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 581. [2022-12-13 13:30:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 346 states have (on average 1.239884393063584) internal successors, (429), 348 states have internal predecessors, (429), 199 states have call successors, (199), 33 states have call predecessors, (199), 34 states have return successors, (236), 199 states have call predecessors, (236), 197 states have call successors, (236) [2022-12-13 13:30:10,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 864 transitions. [2022-12-13 13:30:10,734 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 864 transitions. Word has length 374 [2022-12-13 13:30:10,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:10,734 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 864 transitions. [2022-12-13 13:30:10,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 13:30:10,735 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 864 transitions. [2022-12-13 13:30:10,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-13 13:30:10,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:10,738 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:10,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-12-13 13:30:10,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 13:30:10,939 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:10,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:10,939 INFO L85 PathProgramCache]: Analyzing trace with hash -2057049795, now seen corresponding path program 1 times [2022-12-13 13:30:10,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:10,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498158695] [2022-12-13 13:30:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:10,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:11,000 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:11,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078964064] [2022-12-13 13:30:11,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:11,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:11,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:11,002 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:11,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 13:30:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:11,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 4060 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:30:11,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2022-12-13 13:30:11,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:11,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:11,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498158695] [2022-12-13 13:30:11,620 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:11,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078964064] [2022-12-13 13:30:11,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078964064] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:11,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:11,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:30:11,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023431079] [2022-12-13 13:30:11,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:11,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:30:11,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:11,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:30:11,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:30:11,622 INFO L87 Difference]: Start difference. First operand 581 states and 864 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 13:30:11,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:11,656 INFO L93 Difference]: Finished difference Result 1141 states and 1724 transitions. [2022-12-13 13:30:11,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:30:11,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 374 [2022-12-13 13:30:11,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:11,660 INFO L225 Difference]: With dead ends: 1141 [2022-12-13 13:30:11,660 INFO L226 Difference]: Without dead ends: 593 [2022-12-13 13:30:11,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:30:11,662 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 3 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:11,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2266 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:30:11,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-12-13 13:30:11,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 587. [2022-12-13 13:30:11,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 352 states have (on average 1.2357954545454546) internal successors, (435), 354 states have internal predecessors, (435), 199 states have call successors, (199), 33 states have call predecessors, (199), 34 states have return successors, (236), 199 states have call predecessors, (236), 197 states have call successors, (236) [2022-12-13 13:30:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 870 transitions. [2022-12-13 13:30:11,683 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 870 transitions. Word has length 374 [2022-12-13 13:30:11,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:11,683 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 870 transitions. [2022-12-13 13:30:11,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 13:30:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 870 transitions. [2022-12-13 13:30:11,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-13 13:30:11,685 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:11,685 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:11,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 13:30:11,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:11,885 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:11,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:11,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1083955141, now seen corresponding path program 1 times [2022-12-13 13:30:11,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:11,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732626390] [2022-12-13 13:30:11,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:11,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:11,956 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:11,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482462206] [2022-12-13 13:30:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:11,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:11,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:11,957 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:11,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 13:30:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:12,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 4045 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 13:30:12,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-12-13 13:30:12,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:12,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:12,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732626390] [2022-12-13 13:30:12,603 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:12,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482462206] [2022-12-13 13:30:12,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482462206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:12,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:12,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:30:12,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991362669] [2022-12-13 13:30:12,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:12,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:30:12,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:12,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:30:12,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:30:12,604 INFO L87 Difference]: Start difference. First operand 587 states and 870 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2022-12-13 13:30:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:12,757 INFO L93 Difference]: Finished difference Result 1208 states and 1808 transitions. [2022-12-13 13:30:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:30:12,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 374 [2022-12-13 13:30:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:12,761 INFO L225 Difference]: With dead ends: 1208 [2022-12-13 13:30:12,761 INFO L226 Difference]: Without dead ends: 665 [2022-12-13 13:30:12,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:30:12,763 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 110 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:12,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 4022 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:30:12,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-12-13 13:30:12,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 593. [2022-12-13 13:30:12,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 355 states have (on average 1.2338028169014084) internal successors, (438), 357 states have internal predecessors, (438), 202 states have call successors, (202), 33 states have call predecessors, (202), 34 states have return successors, (239), 202 states have call predecessors, (239), 200 states have call successors, (239) [2022-12-13 13:30:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 879 transitions. [2022-12-13 13:30:12,789 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 879 transitions. Word has length 374 [2022-12-13 13:30:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:12,790 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 879 transitions. [2022-12-13 13:30:12,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2022-12-13 13:30:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 879 transitions. [2022-12-13 13:30:12,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-13 13:30:12,791 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:12,792 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:12,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-13 13:30:12,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 13:30:12,992 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:12,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:12,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1732547911, now seen corresponding path program 1 times [2022-12-13 13:30:12,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:12,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998287787] [2022-12-13 13:30:12,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:12,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:13,059 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:13,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655293261] [2022-12-13 13:30:13,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:13,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:13,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:13,060 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:13,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 13:30:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:13,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 4048 conjuncts, 42 conjunts are in the unsatisfiable core [2022-12-13 13:30:13,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-12-13 13:30:13,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:13,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:13,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998287787] [2022-12-13 13:30:13,938 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:13,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655293261] [2022-12-13 13:30:13,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655293261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:13,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:13,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 13:30:13,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269128875] [2022-12-13 13:30:13,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:13,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:30:13,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:13,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:30:13,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:30:13,940 INFO L87 Difference]: Start difference. First operand 593 states and 879 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 6 states have call successors, (31) [2022-12-13 13:30:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:14,187 INFO L93 Difference]: Finished difference Result 1215 states and 1815 transitions. [2022-12-13 13:30:14,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:30:14,188 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 6 states have call successors, (31) Word has length 374 [2022-12-13 13:30:14,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:14,190 INFO L225 Difference]: With dead ends: 1215 [2022-12-13 13:30:14,191 INFO L226 Difference]: Without dead ends: 684 [2022-12-13 13:30:14,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:30:14,193 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 203 mSDsluCounter, 6241 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 7043 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:14,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 7043 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:30:14,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-12-13 13:30:14,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 622. [2022-12-13 13:30:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 371 states have (on average 1.2318059299191375) internal successors, (457), 373 states have internal predecessors, (457), 214 states have call successors, (214), 33 states have call predecessors, (214), 35 states have return successors, (254), 215 states have call predecessors, (254), 212 states have call successors, (254) [2022-12-13 13:30:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 925 transitions. [2022-12-13 13:30:14,221 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 925 transitions. Word has length 374 [2022-12-13 13:30:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:14,221 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 925 transitions. [2022-12-13 13:30:14,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 7 states have call predecessors, (31), 6 states have call successors, (31) [2022-12-13 13:30:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 925 transitions. [2022-12-13 13:30:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-12-13 13:30:14,224 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:14,224 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:14,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-12-13 13:30:14,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:14,424 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:14,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:14,425 INFO L85 PathProgramCache]: Analyzing trace with hash -32969662, now seen corresponding path program 1 times [2022-12-13 13:30:14,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:14,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424285065] [2022-12-13 13:30:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:14,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:14,490 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:14,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068101779] [2022-12-13 13:30:14,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:14,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:14,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:14,491 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:14,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 13:30:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:15,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 3904 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 13:30:15,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-12-13 13:30:15,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:15,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:15,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424285065] [2022-12-13 13:30:15,178 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:15,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068101779] [2022-12-13 13:30:15,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068101779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:15,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:15,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 13:30:15,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303341152] [2022-12-13 13:30:15,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:15,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 13:30:15,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:15,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 13:30:15,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:30:15,179 INFO L87 Difference]: Start difference. First operand 622 states and 925 transitions. Second operand has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2022-12-13 13:30:15,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:15,953 INFO L93 Difference]: Finished difference Result 1176 states and 1748 transitions. [2022-12-13 13:30:15,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 13:30:15,953 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) Word has length 359 [2022-12-13 13:30:15,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:15,957 INFO L225 Difference]: With dead ends: 1176 [2022-12-13 13:30:15,957 INFO L226 Difference]: Without dead ends: 624 [2022-12-13 13:30:15,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-12-13 13:30:15,960 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 961 mSDsluCounter, 4759 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 5404 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:15,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 5404 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 13:30:15,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-12-13 13:30:15,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 600. [2022-12-13 13:30:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 351 states have (on average 1.227920227920228) internal successors, (431), 353 states have internal predecessors, (431), 213 states have call successors, (213), 33 states have call predecessors, (213), 34 states have return successors, (244), 213 states have call predecessors, (244), 211 states have call successors, (244) [2022-12-13 13:30:16,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 888 transitions. [2022-12-13 13:30:16,004 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 888 transitions. Word has length 359 [2022-12-13 13:30:16,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:16,004 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 888 transitions. [2022-12-13 13:30:16,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2022-12-13 13:30:16,005 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 888 transitions. [2022-12-13 13:30:16,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-13 13:30:16,008 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:16,008 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:16,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-12-13 13:30:16,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:16,208 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:16,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:16,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1830451959, now seen corresponding path program 1 times [2022-12-13 13:30:16,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:16,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321512774] [2022-12-13 13:30:16,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:16,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:16,285 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:16,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011201267] [2022-12-13 13:30:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:16,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:16,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:16,286 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:16,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-13 13:30:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:16,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 4045 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 13:30:16,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:16,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-12-13 13:30:16,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:16,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:16,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321512774] [2022-12-13 13:30:16,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:16,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011201267] [2022-12-13 13:30:16,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011201267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:16,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:16,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:30:16,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494636358] [2022-12-13 13:30:16,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:16,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:30:16,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:16,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:30:16,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:30:16,973 INFO L87 Difference]: Start difference. First operand 600 states and 888 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-12-13 13:30:17,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:17,146 INFO L93 Difference]: Finished difference Result 1184 states and 1758 transitions. [2022-12-13 13:30:17,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:30:17,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 374 [2022-12-13 13:30:17,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:17,150 INFO L225 Difference]: With dead ends: 1184 [2022-12-13 13:30:17,150 INFO L226 Difference]: Without dead ends: 666 [2022-12-13 13:30:17,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:30:17,153 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 94 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 3967 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:17,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 3967 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:30:17,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-12-13 13:30:17,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 606. [2022-12-13 13:30:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 354 states have (on average 1.2231638418079096) internal successors, (433), 356 states have internal predecessors, (433), 216 states have call successors, (216), 33 states have call predecessors, (216), 34 states have return successors, (247), 216 states have call predecessors, (247), 214 states have call successors, (247) [2022-12-13 13:30:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 896 transitions. [2022-12-13 13:30:17,192 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 896 transitions. Word has length 374 [2022-12-13 13:30:17,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:17,192 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 896 transitions. [2022-12-13 13:30:17,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-12-13 13:30:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 896 transitions. [2022-12-13 13:30:17,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-13 13:30:17,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:17,195 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:17,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-13 13:30:17,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:17,396 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:17,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:17,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1433474439, now seen corresponding path program 1 times [2022-12-13 13:30:17,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:17,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309869052] [2022-12-13 13:30:17,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:17,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:17,526 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:17,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1380191983] [2022-12-13 13:30:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:17,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:17,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:17,528 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:17,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-12-13 13:30:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:18,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 4042 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 13:30:18,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 502 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-12-13 13:30:18,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:18,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:18,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309869052] [2022-12-13 13:30:18,215 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:18,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380191983] [2022-12-13 13:30:18,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380191983] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:18,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:18,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:30:18,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975721842] [2022-12-13 13:30:18,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:18,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:30:18,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:18,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:30:18,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:30:18,218 INFO L87 Difference]: Start difference. First operand 606 states and 896 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-12-13 13:30:18,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:18,381 INFO L93 Difference]: Finished difference Result 1208 states and 1794 transitions. [2022-12-13 13:30:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:30:18,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 374 [2022-12-13 13:30:18,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:18,384 INFO L225 Difference]: With dead ends: 1208 [2022-12-13 13:30:18,384 INFO L226 Difference]: Without dead ends: 672 [2022-12-13 13:30:18,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:30:18,387 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 100 mSDsluCounter, 3170 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:18,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 4008 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:30:18,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-12-13 13:30:18,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 606. [2022-12-13 13:30:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 354 states have (on average 1.2175141242937852) internal successors, (431), 356 states have internal predecessors, (431), 216 states have call successors, (216), 33 states have call predecessors, (216), 34 states have return successors, (247), 216 states have call predecessors, (247), 214 states have call successors, (247) [2022-12-13 13:30:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 894 transitions. [2022-12-13 13:30:18,415 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 894 transitions. Word has length 374 [2022-12-13 13:30:18,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:18,416 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 894 transitions. [2022-12-13 13:30:18,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-12-13 13:30:18,416 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 894 transitions. [2022-12-13 13:30:18,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-12-13 13:30:18,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:18,422 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:18,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-12-13 13:30:18,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-13 13:30:18,623 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:18,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:18,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1836495741, now seen corresponding path program 1 times [2022-12-13 13:30:18,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:18,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111954291] [2022-12-13 13:30:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:18,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:18,683 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:18,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292467231] [2022-12-13 13:30:18,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:18,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:18,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:18,685 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:18,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-12-13 13:30:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:19,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 4036 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 13:30:19,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2022-12-13 13:30:19,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:19,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:19,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111954291] [2022-12-13 13:30:19,425 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:19,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292467231] [2022-12-13 13:30:19,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292467231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:19,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:19,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:30:19,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815604231] [2022-12-13 13:30:19,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:19,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:30:19,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:19,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:30:19,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:30:19,427 INFO L87 Difference]: Start difference. First operand 606 states and 894 transitions. Second operand has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 7 states have internal predecessors, (115), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 13:30:19,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:19,693 INFO L93 Difference]: Finished difference Result 1135 states and 1674 transitions. [2022-12-13 13:30:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:30:19,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 7 states have internal predecessors, (115), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 374 [2022-12-13 13:30:19,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:19,698 INFO L225 Difference]: With dead ends: 1135 [2022-12-13 13:30:19,698 INFO L226 Difference]: Without dead ends: 573 [2022-12-13 13:30:19,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:30:19,700 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 12 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4182 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:19,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4182 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 13:30:19,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-12-13 13:30:19,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 568. [2022-12-13 13:30:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 334 states have (on average 1.218562874251497) internal successors, (407), 337 states have internal predecessors, (407), 198 states have call successors, (198), 33 states have call predecessors, (198), 34 states have return successors, (228), 197 states have call predecessors, (228), 196 states have call successors, (228) [2022-12-13 13:30:19,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 833 transitions. [2022-12-13 13:30:19,725 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 833 transitions. Word has length 374 [2022-12-13 13:30:19,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:19,726 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 833 transitions. [2022-12-13 13:30:19,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 7 states have internal predecessors, (115), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 13:30:19,726 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 833 transitions. [2022-12-13 13:30:19,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-12-13 13:30:19,727 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:19,728 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:19,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-12-13 13:30:19,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-13 13:30:19,929 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:19,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:19,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1938618067, now seen corresponding path program 1 times [2022-12-13 13:30:19,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:19,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800823962] [2022-12-13 13:30:19,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:19,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:20,030 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:20,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304498582] [2022-12-13 13:30:20,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:20,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:20,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:20,031 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:20,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-13 13:30:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:20,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 4083 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-13 13:30:20,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:20,958 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5073 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5073) |c_#memory_int|)) is different from true [2022-12-13 13:30:21,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:30:21,122 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 13:30:21,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-12-13 13:30:21,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:21,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:21,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800823962] [2022-12-13 13:30:21,157 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:21,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304498582] [2022-12-13 13:30:21,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304498582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:21,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:21,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 13:30:21,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490066914] [2022-12-13 13:30:21,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:21,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 13:30:21,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:21,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 13:30:21,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=123, Unknown=10, NotChecked=22, Total=182 [2022-12-13 13:30:21,159 INFO L87 Difference]: Start difference. First operand 568 states and 833 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2022-12-13 13:30:28,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:28,433 INFO L93 Difference]: Finished difference Result 1445 states and 2341 transitions. [2022-12-13 13:30:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 13:30:28,434 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 385 [2022-12-13 13:30:28,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:28,437 INFO L225 Difference]: With dead ends: 1445 [2022-12-13 13:30:28,438 INFO L226 Difference]: Without dead ends: 910 [2022-12-13 13:30:28,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=550, Unknown=22, NotChecked=50, Total=756 [2022-12-13 13:30:28,440 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 492 mSDsluCounter, 4651 mSDsCounter, 0 mSdLazyCounter, 6767 mSolverCounterSat, 286 mSolverCounterUnsat, 509 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 5392 SdHoareTripleChecker+Invalid, 8945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 6767 IncrementalHoareTripleChecker+Invalid, 509 IncrementalHoareTripleChecker+Unknown, 1383 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:28,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 5392 Invalid, 8945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 6767 Invalid, 509 Unknown, 1383 Unchecked, 6.9s Time] [2022-12-13 13:30:28,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-12-13 13:30:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 584. [2022-12-13 13:30:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 348 states have (on average 1.2183908045977012) internal successors, (424), 350 states have internal predecessors, (424), 198 states have call successors, (198), 33 states have call predecessors, (198), 36 states have return successors, (263), 200 states have call predecessors, (263), 196 states have call successors, (263) [2022-12-13 13:30:28,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 885 transitions. [2022-12-13 13:30:28,493 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 885 transitions. Word has length 385 [2022-12-13 13:30:28,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:28,493 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 885 transitions. [2022-12-13 13:30:28,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2022-12-13 13:30:28,494 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 885 transitions. [2022-12-13 13:30:28,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-12-13 13:30:28,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:28,496 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:28,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-12-13 13:30:28,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:28,697 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:28,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:28,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1036120973, now seen corresponding path program 1 times [2022-12-13 13:30:28,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:28,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320919588] [2022-12-13 13:30:28,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:28,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:28,796 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:28,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [872017651] [2022-12-13 13:30:28,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:28,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:28,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:28,797 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:28,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-12-13 13:30:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:29,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 4076 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:30:29,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 612 proven. 0 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-12-13 13:30:29,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:29,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:29,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320919588] [2022-12-13 13:30:29,417 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:29,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872017651] [2022-12-13 13:30:29,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872017651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:29,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:29,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:30:29,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835084263] [2022-12-13 13:30:29,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:29,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:30:29,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:29,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:30:29,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:30:29,419 INFO L87 Difference]: Start difference. First operand 584 states and 885 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 13:30:29,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:29,468 INFO L93 Difference]: Finished difference Result 1140 states and 1797 transitions. [2022-12-13 13:30:29,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:30:29,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 385 [2022-12-13 13:30:29,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:29,471 INFO L225 Difference]: With dead ends: 1140 [2022-12-13 13:30:29,471 INFO L226 Difference]: Without dead ends: 589 [2022-12-13 13:30:29,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:30:29,474 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 7 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2260 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 13:30:29,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2260 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:30:29,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-12-13 13:30:29,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 586. [2022-12-13 13:30:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 350 states have (on average 1.217142857142857) internal successors, (426), 352 states have internal predecessors, (426), 198 states have call successors, (198), 33 states have call predecessors, (198), 36 states have return successors, (263), 200 states have call predecessors, (263), 196 states have call successors, (263) [2022-12-13 13:30:29,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 887 transitions. [2022-12-13 13:30:29,502 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 887 transitions. Word has length 385 [2022-12-13 13:30:29,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:29,502 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 887 transitions. [2022-12-13 13:30:29,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 13:30:29,502 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 887 transitions. [2022-12-13 13:30:29,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-12-13 13:30:29,504 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:29,504 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:29,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-12-13 13:30:29,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:29,706 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:29,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:29,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1655018447, now seen corresponding path program 1 times [2022-12-13 13:30:29,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:29,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271195086] [2022-12-13 13:30:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:29,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:29,807 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:29,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643355196] [2022-12-13 13:30:29,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:29,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:29,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:29,808 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:29,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-12-13 13:30:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:30,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 4094 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-13 13:30:30,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 430 proven. 0 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-12-13 13:30:30,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:30,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:30,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271195086] [2022-12-13 13:30:30,492 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:30,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643355196] [2022-12-13 13:30:30,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643355196] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:30,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:30,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:30:30,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672976208] [2022-12-13 13:30:30,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:30,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:30:30,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:30,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:30:30,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:30:30,494 INFO L87 Difference]: Start difference. First operand 586 states and 887 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 13:30:30,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:30,548 INFO L93 Difference]: Finished difference Result 1159 states and 1785 transitions. [2022-12-13 13:30:30,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:30:30,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 397 [2022-12-13 13:30:30,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:30,551 INFO L225 Difference]: With dead ends: 1159 [2022-12-13 13:30:30,551 INFO L226 Difference]: Without dead ends: 606 [2022-12-13 13:30:30,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:30:30,553 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 8 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3078 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:30,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3078 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:30:30,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-12-13 13:30:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 594. [2022-12-13 13:30:30,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 358 states have (on average 1.2122905027932962) internal successors, (434), 360 states have internal predecessors, (434), 198 states have call successors, (198), 33 states have call predecessors, (198), 36 states have return successors, (263), 200 states have call predecessors, (263), 196 states have call successors, (263) [2022-12-13 13:30:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 895 transitions. [2022-12-13 13:30:30,594 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 895 transitions. Word has length 397 [2022-12-13 13:30:30,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:30,595 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 895 transitions. [2022-12-13 13:30:30,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 13:30:30,595 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 895 transitions. [2022-12-13 13:30:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-12-13 13:30:30,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:30,598 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:30,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-12-13 13:30:30,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 13:30:30,800 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:30,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:30,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1631915571, now seen corresponding path program 1 times [2022-12-13 13:30:30,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:30,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946131212] [2022-12-13 13:30:30,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:30,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:30,906 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:30,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144327147] [2022-12-13 13:30:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:30,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:30,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:30,907 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:30,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-12-13 13:30:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:31,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 4107 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 13:30:31,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 315 proven. 23 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2022-12-13 13:30:31,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:30:32,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 121 proven. 13 refuted. 0 times theorem prover too weak. 1079 trivial. 0 not checked. [2022-12-13 13:30:32,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:32,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946131212] [2022-12-13 13:30:32,366 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:32,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144327147] [2022-12-13 13:30:32,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144327147] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:30:32,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:30:32,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15] total 28 [2022-12-13 13:30:32,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503310849] [2022-12-13 13:30:32,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:30:32,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 13:30:32,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:32,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 13:30:32,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=697, Unknown=0, NotChecked=0, Total=756 [2022-12-13 13:30:32,369 INFO L87 Difference]: Start difference. First operand 594 states and 895 transitions. Second operand has 28 states, 24 states have (on average 5.75) internal successors, (138), 19 states have internal predecessors, (138), 6 states have call successors, (41), 3 states have call predecessors, (41), 9 states have return successors, (44), 10 states have call predecessors, (44), 5 states have call successors, (44) [2022-12-13 13:30:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:33,221 INFO L93 Difference]: Finished difference Result 1141 states and 1766 transitions. [2022-12-13 13:30:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 13:30:33,221 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 5.75) internal successors, (138), 19 states have internal predecessors, (138), 6 states have call successors, (41), 3 states have call predecessors, (41), 9 states have return successors, (44), 10 states have call predecessors, (44), 5 states have call successors, (44) Word has length 421 [2022-12-13 13:30:33,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:33,226 INFO L225 Difference]: With dead ends: 1141 [2022-12-13 13:30:33,226 INFO L226 Difference]: Without dead ends: 605 [2022-12-13 13:30:33,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 810 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=974, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 13:30:33,228 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 68 mSDsluCounter, 16836 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 17587 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:33,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 17587 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:30:33,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-12-13 13:30:33,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 601. [2022-12-13 13:30:33,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 364 states have (on average 1.2115384615384615) internal successors, (441), 367 states have internal predecessors, (441), 198 states have call successors, (198), 33 states have call predecessors, (198), 37 states have return successors, (294), 200 states have call predecessors, (294), 196 states have call successors, (294) [2022-12-13 13:30:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 933 transitions. [2022-12-13 13:30:33,260 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 933 transitions. Word has length 421 [2022-12-13 13:30:33,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:33,260 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 933 transitions. [2022-12-13 13:30:33,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 5.75) internal successors, (138), 19 states have internal predecessors, (138), 6 states have call successors, (41), 3 states have call predecessors, (41), 9 states have return successors, (44), 10 states have call predecessors, (44), 5 states have call successors, (44) [2022-12-13 13:30:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 933 transitions. [2022-12-13 13:30:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-12-13 13:30:33,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:33,262 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:33,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-12-13 13:30:33,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 13:30:33,463 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:33,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:33,463 INFO L85 PathProgramCache]: Analyzing trace with hash 85938670, now seen corresponding path program 2 times [2022-12-13 13:30:33,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:33,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912693443] [2022-12-13 13:30:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:33,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:33,521 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:33,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110257822] [2022-12-13 13:30:33,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:30:33,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:33,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:33,523 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:33,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-12-13 13:30:34,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:30:34,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:30:34,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 4103 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 13:30:34,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:34,597 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 13:30:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1183 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2022-12-13 13:30:34,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:34,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:34,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912693443] [2022-12-13 13:30:34,614 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:34,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110257822] [2022-12-13 13:30:34,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110257822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:34,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:34,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 13:30:34,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004011600] [2022-12-13 13:30:34,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:34,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 13:30:34,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:34,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 13:30:34,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:30:34,616 INFO L87 Difference]: Start difference. First operand 601 states and 933 transitions. Second operand has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 6 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2022-12-13 13:30:38,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:38,037 INFO L93 Difference]: Finished difference Result 1465 states and 2414 transitions. [2022-12-13 13:30:38,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 13:30:38,038 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 6 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) Word has length 415 [2022-12-13 13:30:38,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:38,042 INFO L225 Difference]: With dead ends: 1465 [2022-12-13 13:30:38,042 INFO L226 Difference]: Without dead ends: 897 [2022-12-13 13:30:38,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2022-12-13 13:30:38,044 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 344 mSDsluCounter, 4320 mSDsCounter, 0 mSdLazyCounter, 5274 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 5016 SdHoareTripleChecker+Invalid, 5540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 5274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:38,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 5016 Invalid, 5540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 5274 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 13:30:38,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-12-13 13:30:38,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 606. [2022-12-13 13:30:38,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 368 states have (on average 1.2119565217391304) internal successors, (446), 372 states have internal predecessors, (446), 198 states have call successors, (198), 33 states have call predecessors, (198), 38 states have return successors, (325), 200 states have call predecessors, (325), 196 states have call successors, (325) [2022-12-13 13:30:38,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 969 transitions. [2022-12-13 13:30:38,084 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 969 transitions. Word has length 415 [2022-12-13 13:30:38,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:38,084 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 969 transitions. [2022-12-13 13:30:38,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 6 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2022-12-13 13:30:38,085 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 969 transitions. [2022-12-13 13:30:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-12-13 13:30:38,086 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:38,087 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:38,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-12-13 13:30:38,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 13:30:38,288 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:38,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:38,289 INFO L85 PathProgramCache]: Analyzing trace with hash -586076666, now seen corresponding path program 1 times [2022-12-13 13:30:38,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:38,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980344728] [2022-12-13 13:30:38,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:38,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:38,396 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:38,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750124109] [2022-12-13 13:30:38,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:38,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:38,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:38,398 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:38,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-12-13 13:30:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:39,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 4103 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 13:30:39,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1189 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-12-13 13:30:39,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:39,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:39,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980344728] [2022-12-13 13:30:39,097 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:39,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750124109] [2022-12-13 13:30:39,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750124109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:39,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:39,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:30:39,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438774746] [2022-12-13 13:30:39,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:39,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:30:39,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:39,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:30:39,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:30:39,099 INFO L87 Difference]: Start difference. First operand 606 states and 969 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-13 13:30:39,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:39,419 INFO L93 Difference]: Finished difference Result 1179 states and 1989 transitions. [2022-12-13 13:30:39,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:30:39,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 421 [2022-12-13 13:30:39,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:39,423 INFO L225 Difference]: With dead ends: 1179 [2022-12-13 13:30:39,423 INFO L226 Difference]: Without dead ends: 606 [2022-12-13 13:30:39,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:30:39,426 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 10 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:39,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2950 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 13:30:39,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-12-13 13:30:39,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2022-12-13 13:30:39,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 368 states have (on average 1.2065217391304348) internal successors, (444), 372 states have internal predecessors, (444), 198 states have call successors, (198), 33 states have call predecessors, (198), 38 states have return successors, (325), 200 states have call predecessors, (325), 196 states have call successors, (325) [2022-12-13 13:30:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 967 transitions. [2022-12-13 13:30:39,458 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 967 transitions. Word has length 421 [2022-12-13 13:30:39,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:39,458 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 967 transitions. [2022-12-13 13:30:39,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-13 13:30:39,458 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 967 transitions. [2022-12-13 13:30:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-12-13 13:30:39,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:39,460 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:39,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-12-13 13:30:39,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 13:30:39,662 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:30:39,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:39,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1425549825, now seen corresponding path program 1 times [2022-12-13 13:30:39,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:39,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956676853] [2022-12-13 13:30:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:39,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:39,755 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:30:39,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369919620] [2022-12-13 13:30:39,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:39,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:39,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:39,757 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:39,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-12-13 13:30:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:40,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 4098 conjuncts, 102 conjunts are in the unsatisfiable core [2022-12-13 13:30:40,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:40,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:30:41,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 13:30:43,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:30:43,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 13:30:45,212 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_6651 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_6651) |c_#memory_int|)) is different from true [2022-12-13 13:30:45,406 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6653 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_6653)) |c_#memory_int|)) is different from true [2022-12-13 13:30:45,537 WARN L859 $PredicateComparison]: unable to prove that (and (not (= 0 (mod (select (select |c_#memory_int| |c_aws_array_list_is_valid_#in~list.base|) (+ |c_aws_array_list_is_valid_#in~list.offset| 8)) 18446744073709551616))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_6653 Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_6653))))) is different from true [2022-12-13 13:30:45,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 457 proven. 15 refuted. 0 times theorem prover too weak. 649 trivial. 8 not checked. [2022-12-13 13:30:45,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:30:46,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:46,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956676853] [2022-12-13 13:30:46,160 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:30:46,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369919620] [2022-12-13 13:30:46,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369919620] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:30:46,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:30:46,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2022-12-13 13:30:46,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013364792] [2022-12-13 13:30:46,160 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 13:30:46,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-13 13:30:46,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:46,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-13 13:30:46,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=605, Unknown=20, NotChecked=156, Total=870 [2022-12-13 13:30:46,161 INFO L87 Difference]: Start difference. First operand 606 states and 967 transitions. Second operand has 29 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 25 states have internal predecessors, (148), 12 states have call successors, (41), 7 states have call predecessors, (41), 11 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2022-12-13 13:31:00,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:31:04,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:31:06,111 WARN L539 Checker$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 13:31:07,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:31:13,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:31:15,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:31:17,849 WARN L539 Checker$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 13:31:20,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:31:22,611 WARN L539 Checker$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 13:32:10,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:32:10,695 INFO L93 Difference]: Finished difference Result 2958 states and 5246 transitions. [2022-12-13 13:32:10,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-13 13:32:10,695 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 25 states have internal predecessors, (148), 12 states have call successors, (41), 7 states have call predecessors, (41), 11 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 391 [2022-12-13 13:32:10,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:32:10,708 INFO L225 Difference]: With dead ends: 2958 [2022-12-13 13:32:10,708 INFO L226 Difference]: Without dead ends: 2385 [2022-12-13 13:32:10,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 634 SyntacticMatches, 8 SemanticMatches, 71 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1529 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=501, Invalid=4260, Unknown=81, NotChecked=414, Total=5256 [2022-12-13 13:32:10,712 INFO L413 NwaCegarLoop]: 1159 mSDtfsCounter, 1847 mSDsluCounter, 10259 mSDsCounter, 0 mSdLazyCounter, 41636 mSolverCounterSat, 2162 mSolverCounterUnsat, 808 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 11418 SdHoareTripleChecker+Invalid, 54630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2162 IncrementalHoareTripleChecker+Valid, 41636 IncrementalHoareTripleChecker+Invalid, 808 IncrementalHoareTripleChecker+Unknown, 10024 IncrementalHoareTripleChecker+Unchecked, 67.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:32:10,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2054 Valid, 11418 Invalid, 54630 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2162 Valid, 41636 Invalid, 808 Unknown, 10024 Unchecked, 67.9s Time] [2022-12-13 13:32:10,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2022-12-13 13:32:10,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1716. [2022-12-13 13:32:10,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1053 states have (on average 1.2070275403608737) internal successors, (1271), 1074 states have internal predecessors, (1271), 542 states have call successors, (542), 101 states have call predecessors, (542), 119 states have return successors, (1072), 540 states have call predecessors, (1072), 539 states have call successors, (1072) [2022-12-13 13:32:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2885 transitions. [2022-12-13 13:32:10,879 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2885 transitions. Word has length 391 [2022-12-13 13:32:10,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:32:10,879 INFO L495 AbstractCegarLoop]: Abstraction has 1716 states and 2885 transitions. [2022-12-13 13:32:10,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 25 states have internal predecessors, (148), 12 states have call successors, (41), 7 states have call predecessors, (41), 11 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2022-12-13 13:32:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2885 transitions. [2022-12-13 13:32:10,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-12-13 13:32:10,882 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:32:10,882 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:32:10,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-12-13 13:32:11,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:32:11,084 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:32:11,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:32:11,086 INFO L85 PathProgramCache]: Analyzing trace with hash -691799782, now seen corresponding path program 1 times [2022-12-13 13:32:11,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:32:11,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589772732] [2022-12-13 13:32:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:11,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:32:11,181 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:32:11,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741811327] [2022-12-13 13:32:11,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:11,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:32:11,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:32:11,183 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:32:11,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-12-13 13:32:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:32:12,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 4145 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-13 13:32:12,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:32:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 636 proven. 7 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-12-13 13:32:12,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:32:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 85 proven. 30 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2022-12-13 13:32:12,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:32:12,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589772732] [2022-12-13 13:32:12,829 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:32:12,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741811327] [2022-12-13 13:32:12,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741811327] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:32:12,829 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:32:12,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14] total 28 [2022-12-13 13:32:12,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871309945] [2022-12-13 13:32:12,830 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:32:12,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 13:32:12,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:32:12,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 13:32:12,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=699, Unknown=0, NotChecked=0, Total=756 [2022-12-13 13:32:12,831 INFO L87 Difference]: Start difference. First operand 1716 states and 2885 transitions. Second operand has 28 states, 26 states have (on average 6.1923076923076925) internal successors, (161), 19 states have internal predecessors, (161), 4 states have call successors, (49), 3 states have call predecessors, (49), 9 states have return successors, (53), 10 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-13 13:32:13,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:32:13,879 INFO L93 Difference]: Finished difference Result 3363 states and 5765 transitions. [2022-12-13 13:32:13,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 13:32:13,880 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 6.1923076923076925) internal successors, (161), 19 states have internal predecessors, (161), 4 states have call successors, (49), 3 states have call predecessors, (49), 9 states have return successors, (53), 10 states have call predecessors, (53), 3 states have call successors, (53) Word has length 409 [2022-12-13 13:32:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:32:13,889 INFO L225 Difference]: With dead ends: 3363 [2022-12-13 13:32:13,889 INFO L226 Difference]: Without dead ends: 1698 [2022-12-13 13:32:13,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 823 GetRequests, 787 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=1038, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 13:32:13,898 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 84 mSDsluCounter, 16698 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 17442 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 13:32:13,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 17442 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 13:32:13,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2022-12-13 13:32:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1662. [2022-12-13 13:32:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 999 states have (on average 1.1971971971971973) internal successors, (1196), 1019 states have internal predecessors, (1196), 542 states have call successors, (542), 101 states have call predecessors, (542), 119 states have return successors, (1072), 541 states have call predecessors, (1072), 539 states have call successors, (1072) [2022-12-13 13:32:14,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2810 transitions. [2022-12-13 13:32:14,044 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2810 transitions. Word has length 409 [2022-12-13 13:32:14,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:32:14,044 INFO L495 AbstractCegarLoop]: Abstraction has 1662 states and 2810 transitions. [2022-12-13 13:32:14,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 6.1923076923076925) internal successors, (161), 19 states have internal predecessors, (161), 4 states have call successors, (49), 3 states have call predecessors, (49), 9 states have return successors, (53), 10 states have call predecessors, (53), 3 states have call successors, (53) [2022-12-13 13:32:14,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2810 transitions. [2022-12-13 13:32:14,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2022-12-13 13:32:14,047 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:32:14,047 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:32:14,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2022-12-13 13:32:14,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:32:14,248 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:32:14,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:32:14,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1661617779, now seen corresponding path program 2 times [2022-12-13 13:32:14,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:32:14,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050143088] [2022-12-13 13:32:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:14,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:32:14,314 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:32:14,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873204670] [2022-12-13 13:32:14,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:32:14,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:32:14,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:32:14,316 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:32:14,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-12-13 13:32:15,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:32:15,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:32:15,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 4154 conjuncts, 53 conjunts are in the unsatisfiable core [2022-12-13 13:32:15,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:32:15,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 654 proven. 18 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2022-12-13 13:32:15,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:32:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 101 proven. 58 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-12-13 13:32:16,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:32:16,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050143088] [2022-12-13 13:32:16,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:32:16,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873204670] [2022-12-13 13:32:16,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873204670] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:32:16,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:32:16,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18] total 34 [2022-12-13 13:32:16,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596620436] [2022-12-13 13:32:16,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:32:16,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-13 13:32:16,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:32:16,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-13 13:32:16,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 13:32:16,567 INFO L87 Difference]: Start difference. First operand 1662 states and 2810 transitions. Second operand has 34 states, 30 states have (on average 6.133333333333334) internal successors, (184), 23 states have internal predecessors, (184), 8 states have call successors, (52), 3 states have call predecessors, (52), 11 states have return successors, (57), 14 states have call predecessors, (57), 7 states have call successors, (57) [2022-12-13 13:32:17,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:32:17,788 INFO L93 Difference]: Finished difference Result 3334 states and 5655 transitions. [2022-12-13 13:32:17,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 13:32:17,788 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 30 states have (on average 6.133333333333334) internal successors, (184), 23 states have internal predecessors, (184), 8 states have call successors, (52), 3 states have call predecessors, (52), 11 states have return successors, (57), 14 states have call predecessors, (57), 7 states have call successors, (57) Word has length 417 [2022-12-13 13:32:17,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:32:17,797 INFO L225 Difference]: With dead ends: 3334 [2022-12-13 13:32:17,797 INFO L226 Difference]: Without dead ends: 1741 [2022-12-13 13:32:17,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 796 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=1609, Unknown=0, NotChecked=0, Total=1722 [2022-12-13 13:32:17,803 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 77 mSDsluCounter, 21286 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 22063 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:32:17,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 22063 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 13:32:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2022-12-13 13:32:17,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1682. [2022-12-13 13:32:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 1017 states have (on average 1.1966568338249755) internal successors, (1217), 1036 states have internal predecessors, (1217), 543 states have call successors, (543), 101 states have call predecessors, (543), 120 states have return successors, (1099), 544 states have call predecessors, (1099), 540 states have call successors, (1099) [2022-12-13 13:32:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2859 transitions. [2022-12-13 13:32:17,925 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2859 transitions. Word has length 417 [2022-12-13 13:32:17,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:32:17,925 INFO L495 AbstractCegarLoop]: Abstraction has 1682 states and 2859 transitions. [2022-12-13 13:32:17,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 30 states have (on average 6.133333333333334) internal successors, (184), 23 states have internal predecessors, (184), 8 states have call successors, (52), 3 states have call predecessors, (52), 11 states have return successors, (57), 14 states have call predecessors, (57), 7 states have call successors, (57) [2022-12-13 13:32:17,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2859 transitions. [2022-12-13 13:32:17,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-12-13 13:32:17,928 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:32:17,928 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:17,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-12-13 13:32:18,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-12-13 13:32:18,129 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:32:18,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:32:18,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1745305436, now seen corresponding path program 1 times [2022-12-13 13:32:18,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:32:18,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190288911] [2022-12-13 13:32:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:18,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:32:18,203 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:32:18,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869104353] [2022-12-13 13:32:18,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:18,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:32:18,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:32:18,205 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:32:18,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-12-13 13:32:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:32:19,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 4147 conjuncts, 167 conjunts are in the unsatisfiable core [2022-12-13 13:32:19,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:32:19,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:32:19,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-12-13 13:32:19,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:32:19,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 13:32:19,582 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 13:32:19,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 13:32:23,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:32:23,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 13:32:27,774 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7591 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_7591) |c_#memory_int|)) is different from true [2022-12-13 13:32:34,232 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7592 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_7592)) |c_#memory_int|)) is different from true [2022-12-13 13:32:43,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:32:43,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:32:43,704 INFO L321 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-12-13 13:32:43,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 81 treesize of output 1 [2022-12-13 13:32:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 462 proven. 20 refuted. 0 times theorem prover too weak. 659 trivial. 3 not checked. [2022-12-13 13:32:43,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:32:44,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:32:44,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190288911] [2022-12-13 13:32:44,001 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:32:44,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869104353] [2022-12-13 13:32:44,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869104353] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:32:44,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:32:44,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2022-12-13 13:32:44,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762926282] [2022-12-13 13:32:44,001 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 13:32:44,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-13 13:32:44,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:32:44,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-13 13:32:44,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1058, Unknown=25, NotChecked=134, Total=1332 [2022-12-13 13:32:44,003 INFO L87 Difference]: Start difference. First operand 1682 states and 2859 transitions. Second operand has 36 states, 33 states have (on average 4.606060606060606) internal successors, (152), 32 states have internal predecessors, (152), 14 states have call successors, (42), 9 states have call predecessors, (42), 13 states have return successors, (40), 13 states have call predecessors, (40), 14 states have call successors, (40) [2022-12-13 13:32:59,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:33:07,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:33:09,134 WARN L539 Checker$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 13:33:33,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:33:35,912 WARN L539 Checker$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 13:33:37,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:33:40,010 WARN L539 Checker$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 13:33:50,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:33:52,211 WARN L539 Checker$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 13:34:00,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:01,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:03,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:09,957 WARN L539 Checker$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 13:34:11,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:13,978 WARN L539 Checker$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 13:34:15,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:18,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:20,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:21,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:23,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:25,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:27,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:29,269 WARN L539 Checker$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 13:34:31,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:33,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:35,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:37,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:39,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:41,396 WARN L539 Checker$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 13:34:43,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:45,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:47,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:49,478 WARN L539 Checker$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 13:34:52,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:54,650 WARN L539 Checker$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 13:34:56,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:34:58,676 WARN L539 Checker$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 13:35:00,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:35:02,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:35:04,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:35:07,289 WARN L539 Checker$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 13:35:09,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:35:11,574 WARN L539 Checker$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 13:35:13,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:35:16,151 WARN L539 Checker$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 13:35:18,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:00,355 WARN L539 Checker$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 13:36:03,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:13,048 WARN L539 Checker$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 13:36:15,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:17,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:19,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:23,501 WARN L539 Checker$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 13:36:25,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:28,150 WARN L539 Checker$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 13:36:31,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:33,250 WARN L539 Checker$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 13:36:35,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:37,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:39,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:42,318 WARN L539 Checker$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 13:36:44,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:46,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:48,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:50,722 WARN L539 Checker$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 13:36:52,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:55,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:57,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:36:59,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:01,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:04,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:06,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:08,655 WARN L539 Checker$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 13:37:10,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:12,797 WARN L539 Checker$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 13:37:14,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:17,154 WARN L539 Checker$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 13:37:19,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:21,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:23,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:30,570 WARN L539 Checker$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 13:37:32,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:35,129 WARN L539 Checker$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 13:37:37,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:39,351 WARN L539 Checker$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 13:37:41,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:43,484 WARN L539 Checker$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 13:37:46,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:48,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:37:50,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:38:02,997 WARN L539 Checker$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 13:38:05,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:38:07,532 WARN L539 Checker$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 13:38:09,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:38:12,297 WARN L539 Checker$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 13:38:14,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:38:16,402 WARN L539 Checker$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 13:38:18,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:38:20,528 WARN L539 Checker$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 13:38:22,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:38:24,994 WARN L539 Checker$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 13:38:27,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:38:29,198 WARN L539 Checker$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 13:38:31,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:38:33,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:38:34,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:38:34,732 INFO L93 Difference]: Finished difference Result 4717 states and 8486 transitions. [2022-12-13 13:38:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-12-13 13:38:34,733 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 33 states have (on average 4.606060606060606) internal successors, (152), 32 states have internal predecessors, (152), 14 states have call successors, (42), 9 states have call predecessors, (42), 13 states have return successors, (40), 13 states have call predecessors, (40), 14 states have call successors, (40) Word has length 401 [2022-12-13 13:38:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:38:34,753 INFO L225 Difference]: With dead ends: 4717 [2022-12-13 13:38:34,753 INFO L226 Difference]: Without dead ends: 3050 [2022-12-13 13:38:34,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 547 SyntacticMatches, 6 SemanticMatches, 91 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2612 ImplicationChecksByTransitivity, 77.4s TimeCoverageRelationStatistics Valid=795, Invalid=7334, Unknown=69, NotChecked=358, Total=8556 [2022-12-13 13:38:34,760 INFO L413 NwaCegarLoop]: 1088 mSDtfsCounter, 2692 mSDsluCounter, 11762 mSDsCounter, 0 mSdLazyCounter, 47330 mSolverCounterSat, 3813 mSolverCounterUnsat, 764 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 288.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2917 SdHoareTripleChecker+Valid, 12850 SdHoareTripleChecker+Invalid, 57485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3813 IncrementalHoareTripleChecker+Valid, 47330 IncrementalHoareTripleChecker+Invalid, 764 IncrementalHoareTripleChecker+Unknown, 5578 IncrementalHoareTripleChecker+Unchecked, 296.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:38:34,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2917 Valid, 12850 Invalid, 57485 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3813 Valid, 47330 Invalid, 764 Unknown, 5578 Unchecked, 296.0s Time] [2022-12-13 13:38:34,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2022-12-13 13:38:34,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2536. [2022-12-13 13:38:34,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 1560 states have (on average 1.192948717948718) internal successors, (1861), 1593 states have internal predecessors, (1861), 788 states have call successors, (788), 161 states have call predecessors, (788), 186 states have return successors, (1880), 781 states have call predecessors, (1880), 784 states have call successors, (1880) [2022-12-13 13:38:35,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 4529 transitions. [2022-12-13 13:38:35,010 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 4529 transitions. Word has length 401 [2022-12-13 13:38:35,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:38:35,010 INFO L495 AbstractCegarLoop]: Abstraction has 2536 states and 4529 transitions. [2022-12-13 13:38:35,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 33 states have (on average 4.606060606060606) internal successors, (152), 32 states have internal predecessors, (152), 14 states have call successors, (42), 9 states have call predecessors, (42), 13 states have return successors, (40), 13 states have call predecessors, (40), 14 states have call successors, (40) [2022-12-13 13:38:35,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 4529 transitions. [2022-12-13 13:38:35,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-12-13 13:38:35,014 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:38:35,014 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:38:35,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-12-13 13:38:35,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:38:35,215 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:38:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:38:35,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1917693340, now seen corresponding path program 1 times [2022-12-13 13:38:35,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:38:35,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097718787] [2022-12-13 13:38:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:38:35,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:38:35,282 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:38:35,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146152679] [2022-12-13 13:38:35,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:38:35,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:38:35,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:38:35,283 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:38:35,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-12-13 13:38:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:38:36,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 4152 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 13:38:36,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:38:36,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 508 proven. 14 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2022-12-13 13:38:36,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:38:36,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 90 proven. 32 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2022-12-13 13:38:36,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:38:36,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097718787] [2022-12-13 13:38:36,877 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:38:36,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146152679] [2022-12-13 13:38:36,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146152679] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:38:36,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:38:36,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15] total 28 [2022-12-13 13:38:36,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135175433] [2022-12-13 13:38:36,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:38:36,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 13:38:36,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:38:36,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 13:38:36,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=697, Unknown=0, NotChecked=0, Total=756 [2022-12-13 13:38:36,881 INFO L87 Difference]: Start difference. First operand 2536 states and 4529 transitions. Second operand has 28 states, 24 states have (on average 6.291666666666667) internal successors, (151), 19 states have internal predecessors, (151), 6 states have call successors, (47), 3 states have call predecessors, (47), 9 states have return successors, (50), 10 states have call predecessors, (50), 5 states have call successors, (50) [2022-12-13 13:38:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:38:38,424 INFO L93 Difference]: Finished difference Result 4920 states and 8756 transitions. [2022-12-13 13:38:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 13:38:38,425 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 6.291666666666667) internal successors, (151), 19 states have internal predecessors, (151), 6 states have call successors, (47), 3 states have call predecessors, (47), 9 states have return successors, (50), 10 states have call predecessors, (50), 5 states have call successors, (50) Word has length 413 [2022-12-13 13:38:38,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:38:38,437 INFO L225 Difference]: With dead ends: 4920 [2022-12-13 13:38:38,437 INFO L226 Difference]: Without dead ends: 2566 [2022-12-13 13:38:38,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 794 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=1035, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 13:38:38,446 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 75 mSDsluCounter, 16079 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 16825 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:38:38,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 16825 Invalid, 1520 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 13:38:38,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2022-12-13 13:38:38,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 2536. [2022-12-13 13:38:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 1560 states have (on average 1.192948717948718) internal successors, (1861), 1593 states have internal predecessors, (1861), 788 states have call successors, (788), 161 states have call predecessors, (788), 186 states have return successors, (1874), 781 states have call predecessors, (1874), 784 states have call successors, (1874) [2022-12-13 13:38:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 4523 transitions. [2022-12-13 13:38:38,691 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 4523 transitions. Word has length 413 [2022-12-13 13:38:38,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:38:38,691 INFO L495 AbstractCegarLoop]: Abstraction has 2536 states and 4523 transitions. [2022-12-13 13:38:38,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 6.291666666666667) internal successors, (151), 19 states have internal predecessors, (151), 6 states have call successors, (47), 3 states have call predecessors, (47), 9 states have return successors, (50), 10 states have call predecessors, (50), 5 states have call successors, (50) [2022-12-13 13:38:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 4523 transitions. [2022-12-13 13:38:38,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-12-13 13:38:38,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:38:38,695 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:38,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-12-13 13:38:38,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-13 13:38:38,896 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:38:38,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:38:38,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1288847467, now seen corresponding path program 2 times [2022-12-13 13:38:38,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:38:38,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066773956] [2022-12-13 13:38:38,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:38:38,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:38:38,954 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:38:38,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105425689] [2022-12-13 13:38:38,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:38:38,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:38:38,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:38:38,955 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:38:38,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-12-13 13:38:40,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 13:38:40,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:38:40,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 4143 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-13 13:38:40,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:38:40,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 678 proven. 11 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2022-12-13 13:38:40,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:38:41,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 55 proven. 98 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2022-12-13 13:38:41,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:38:41,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066773956] [2022-12-13 13:38:41,099 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:38:41,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105425689] [2022-12-13 13:38:41,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105425689] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:38:41,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 13:38:41,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 27 [2022-12-13 13:38:41,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794166713] [2022-12-13 13:38:41,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 13:38:41,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-13 13:38:41,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:38:41,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-13 13:38:41,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2022-12-13 13:38:41,102 INFO L87 Difference]: Start difference. First operand 2536 states and 4523 transitions. Second operand has 27 states, 24 states have (on average 7.791666666666667) internal successors, (187), 18 states have internal predecessors, (187), 7 states have call successors, (55), 3 states have call predecessors, (55), 9 states have return successors, (57), 12 states have call predecessors, (57), 6 states have call successors, (57) [2022-12-13 13:38:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:38:42,385 INFO L93 Difference]: Finished difference Result 4983 states and 8875 transitions. [2022-12-13 13:38:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 13:38:42,386 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 7.791666666666667) internal successors, (187), 18 states have internal predecessors, (187), 7 states have call successors, (55), 3 states have call predecessors, (55), 9 states have return successors, (57), 12 states have call predecessors, (57), 6 states have call successors, (57) Word has length 405 [2022-12-13 13:38:42,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:38:42,398 INFO L225 Difference]: With dead ends: 4983 [2022-12-13 13:38:42,398 INFO L226 Difference]: Without dead ends: 2591 [2022-12-13 13:38:42,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 779 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2022-12-13 13:38:42,408 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 21 mSDsluCounter, 17495 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 18273 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:38:42,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 18273 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 13:38:42,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2022-12-13 13:38:42,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 2536. [2022-12-13 13:38:42,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 1560 states have (on average 1.192948717948718) internal successors, (1861), 1593 states have internal predecessors, (1861), 788 states have call successors, (788), 161 states have call predecessors, (788), 186 states have return successors, (1862), 781 states have call predecessors, (1862), 784 states have call successors, (1862) [2022-12-13 13:38:42,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 4511 transitions. [2022-12-13 13:38:42,651 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 4511 transitions. Word has length 405 [2022-12-13 13:38:42,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:38:42,652 INFO L495 AbstractCegarLoop]: Abstraction has 2536 states and 4511 transitions. [2022-12-13 13:38:42,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 7.791666666666667) internal successors, (187), 18 states have internal predecessors, (187), 7 states have call successors, (55), 3 states have call predecessors, (55), 9 states have return successors, (57), 12 states have call predecessors, (57), 6 states have call successors, (57) [2022-12-13 13:38:42,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 4511 transitions. [2022-12-13 13:38:42,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-12-13 13:38:42,656 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:38:42,656 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:42,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-12-13 13:38:42,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-13 13:38:42,856 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:38:42,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:38:42,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1680874650, now seen corresponding path program 1 times [2022-12-13 13:38:42,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:38:42,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645884225] [2022-12-13 13:38:42,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:38:42,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:38:42,924 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:38:42,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235526610] [2022-12-13 13:38:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:38:42,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:38:42,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:38:42,925 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:38:42,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-12-13 13:38:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:38:44,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 4134 conjuncts, 149 conjunts are in the unsatisfiable core [2022-12-13 13:38:44,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:38:44,432 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_8547 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8547))) (exists ((v_ArrVal_8546 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8546))))) is different from true [2022-12-13 13:38:44,446 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8547 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8546 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8546)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8547)))) is different from true [2022-12-13 13:38:44,490 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 13:38:44,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-13 13:38:44,503 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 13:38:44,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-12-13 13:38:44,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 13:38:44,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 13:38:44,585 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_8549 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8549))) (exists ((v_ArrVal_8548 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8548) |c_#memory_$Pointer$.base|)))) is different from true [2022-12-13 13:38:44,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:38:44,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:38:45,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 639 proven. 30 refuted. 0 times theorem prover too weak. 444 trivial. 17 not checked. [2022-12-13 13:38:45,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:38:48,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:38:48,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645884225] [2022-12-13 13:38:48,233 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:38:48,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235526610] [2022-12-13 13:38:48,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235526610] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:38:48,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:38:48,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2022-12-13 13:38:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039075126] [2022-12-13 13:38:48,234 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 13:38:48,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-12-13 13:38:48,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:38:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-12-13 13:38:48,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1900, Unknown=51, NotChecked=270, Total=2352 [2022-12-13 13:38:48,235 INFO L87 Difference]: Start difference. First operand 2536 states and 4511 transitions. Second operand has 37 states, 34 states have (on average 4.5588235294117645) internal successors, (155), 33 states have internal predecessors, (155), 14 states have call successors, (43), 5 states have call predecessors, (43), 11 states have return successors, (41), 13 states have call predecessors, (41), 14 states have call successors, (41) [2022-12-13 13:38:49,262 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_8549 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8549))) (exists ((v_ArrVal_8548 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8548) |c_#memory_$Pointer$.base|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_8547 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8547))) (exists ((v_ArrVal_8546 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8546)))))) is different from true [2022-12-13 13:39:07,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:39:07,970 INFO L93 Difference]: Finished difference Result 5858 states and 10714 transitions. [2022-12-13 13:39:07,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-12-13 13:39:07,971 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 34 states have (on average 4.5588235294117645) internal successors, (155), 33 states have internal predecessors, (155), 14 states have call successors, (43), 5 states have call predecessors, (43), 11 states have return successors, (41), 13 states have call predecessors, (41), 14 states have call successors, (41) Word has length 397 [2022-12-13 13:39:07,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:39:07,985 INFO L225 Difference]: With dead ends: 5858 [2022-12-13 13:39:07,985 INFO L226 Difference]: Without dead ends: 3382 [2022-12-13 13:39:07,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 437 SyntacticMatches, 4 SemanticMatches, 104 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2219 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=662, Invalid=9563, Unknown=93, NotChecked=812, Total=11130 [2022-12-13 13:39:07,995 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 1034 mSDsluCounter, 13614 mSDsCounter, 0 mSdLazyCounter, 23795 mSolverCounterSat, 1002 mSolverCounterUnsat, 66 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 14306 SdHoareTripleChecker+Invalid, 29382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 23795 IncrementalHoareTripleChecker+Invalid, 66 IncrementalHoareTripleChecker+Unknown, 4519 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:39:07,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 14306 Invalid, 29382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1002 Valid, 23795 Invalid, 66 Unknown, 4519 Unchecked, 17.0s Time] [2022-12-13 13:39:07,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2022-12-13 13:39:08,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 3184. [2022-12-13 13:39:08,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 1962 states have (on average 1.1885830784913354) internal successors, (2332), 2006 states have internal predecessors, (2332), 969 states have call successors, (969), 218 states have call predecessors, (969), 251 states have return successors, (2628), 959 states have call predecessors, (2628), 964 states have call successors, (2628) [2022-12-13 13:39:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 5929 transitions. [2022-12-13 13:39:08,338 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 5929 transitions. Word has length 397 [2022-12-13 13:39:08,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:39:08,338 INFO L495 AbstractCegarLoop]: Abstraction has 3184 states and 5929 transitions. [2022-12-13 13:39:08,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 34 states have (on average 4.5588235294117645) internal successors, (155), 33 states have internal predecessors, (155), 14 states have call successors, (43), 5 states have call predecessors, (43), 11 states have return successors, (41), 13 states have call predecessors, (41), 14 states have call successors, (41) [2022-12-13 13:39:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 5929 transitions. [2022-12-13 13:39:08,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-12-13 13:39:08,343 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:39:08,343 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:39:08,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2022-12-13 13:39:08,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-12-13 13:39:08,544 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:39:08,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:39:08,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1704402493, now seen corresponding path program 1 times [2022-12-13 13:39:08,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:39:08,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216835294] [2022-12-13 13:39:08,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:39:08,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:39:08,625 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:39:08,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318913420] [2022-12-13 13:39:08,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:39:08,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:39:08,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:39:08,626 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:39:08,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-12-13 13:39:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:39:09,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 4143 conjuncts, 170 conjunts are in the unsatisfiable core [2022-12-13 13:39:09,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:39:09,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:39:09,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-13 13:39:09,812 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-13 13:39:09,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-13 13:39:09,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:39:09,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 13:39:09,960 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_8887 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_8887))) (exists ((v_ArrVal_8886 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_8886) |c_#memory_$Pointer$.base|))) is different from true [2022-12-13 13:39:10,454 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8890 Int) (v_ArrVal_8891 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8890))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8891))))) is different from true [2022-12-13 13:39:10,471 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8890 Int) (v_ArrVal_8891 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_8890))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_8891))))) is different from true [2022-12-13 13:39:10,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:39:10,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:39:11,012 INFO L321 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-12-13 13:39:11,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 98 [2022-12-13 13:39:11,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:39:11,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:39:11,076 INFO L321 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-12-13 13:39:11,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 98 [2022-12-13 13:39:11,100 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 13:39:11,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 13:39:11,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-13 13:39:11,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-13 13:39:11,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-13 13:39:11,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-13 13:39:11,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:39:11,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-12-13 13:39:11,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 13:39:11,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-12-13 13:39:11,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 83 [2022-12-13 13:39:11,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 102 [2022-12-13 13:39:11,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-12-13 13:39:12,376 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8894 Int) (v_ArrVal_8895 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8894)) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8895))))) is different from true [2022-12-13 13:39:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 653 proven. 96 refuted. 20 times theorem prover too weak. 350 trivial. 25 not checked. [2022-12-13 13:39:16,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:39:17,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:39:17,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216835294] [2022-12-13 13:39:17,217 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:39:17,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318913420] [2022-12-13 13:39:17,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318913420] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:39:17,217 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:39:17,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2022-12-13 13:39:17,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143658963] [2022-12-13 13:39:17,217 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 13:39:17,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-12-13 13:39:17,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:39:17,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-12-13 13:39:17,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1181, Unknown=45, NotChecked=292, Total=1640 [2022-12-13 13:39:17,220 INFO L87 Difference]: Start difference. First operand 3184 states and 5929 transitions. Second operand has 40 states, 36 states have (on average 5.583333333333333) internal successors, (201), 37 states have internal predecessors, (201), 19 states have call successors, (48), 8 states have call predecessors, (48), 14 states have return successors, (46), 17 states have call predecessors, (46), 19 states have call successors, (46) [2022-12-13 13:40:01,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:40:04,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:40:06,876 WARN L539 Checker$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 13:40:20,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:40:38,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:41:10,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:42:17,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:42:17,865 INFO L93 Difference]: Finished difference Result 10372 states and 19623 transitions. [2022-12-13 13:42:17,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-12-13 13:42:17,866 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 36 states have (on average 5.583333333333333) internal successors, (201), 37 states have internal predecessors, (201), 19 states have call successors, (48), 8 states have call predecessors, (48), 14 states have return successors, (46), 17 states have call predecessors, (46), 19 states have call successors, (46) Word has length 407 [2022-12-13 13:42:17,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:42:17,919 INFO L225 Difference]: With dead ends: 10372 [2022-12-13 13:42:17,919 INFO L226 Difference]: Without dead ends: 7346 [2022-12-13 13:42:17,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 562 SyntacticMatches, 11 SemanticMatches, 131 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 5040 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=1416, Invalid=14858, Unknown=254, NotChecked=1028, Total=17556 [2022-12-13 13:42:17,947 INFO L413 NwaCegarLoop]: 1245 mSDtfsCounter, 1966 mSDsluCounter, 16573 mSDsCounter, 0 mSdLazyCounter, 58309 mSolverCounterSat, 2033 mSolverCounterUnsat, 1497 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 17818 SdHoareTripleChecker+Invalid, 73064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2033 IncrementalHoareTripleChecker+Valid, 58309 IncrementalHoareTripleChecker+Invalid, 1497 IncrementalHoareTripleChecker+Unknown, 11225 IncrementalHoareTripleChecker+Unchecked, 154.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:42:17,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 17818 Invalid, 73064 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2033 Valid, 58309 Invalid, 1497 Unknown, 11225 Unchecked, 154.4s Time] [2022-12-13 13:42:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7346 states. [2022-12-13 13:42:18,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7346 to 6456. [2022-12-13 13:42:18,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6456 states, 4015 states have (on average 1.1870485678704856) internal successors, (4766), 4100 states have internal predecessors, (4766), 1918 states have call successors, (1918), 460 states have call predecessors, (1918), 521 states have return successors, (5111), 1895 states have call predecessors, (5111), 1909 states have call successors, (5111) [2022-12-13 13:42:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6456 states to 6456 states and 11795 transitions. [2022-12-13 13:42:18,841 INFO L78 Accepts]: Start accepts. Automaton has 6456 states and 11795 transitions. Word has length 407 [2022-12-13 13:42:18,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:42:18,841 INFO L495 AbstractCegarLoop]: Abstraction has 6456 states and 11795 transitions. [2022-12-13 13:42:18,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 36 states have (on average 5.583333333333333) internal successors, (201), 37 states have internal predecessors, (201), 19 states have call successors, (48), 8 states have call predecessors, (48), 14 states have return successors, (46), 17 states have call predecessors, (46), 19 states have call successors, (46) [2022-12-13 13:42:18,841 INFO L276 IsEmpty]: Start isEmpty. Operand 6456 states and 11795 transitions. [2022-12-13 13:42:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-12-13 13:42:18,848 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:42:18,848 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:18,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-12-13 13:42:19,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-12-13 13:42:19,050 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:42:19,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:42:19,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1061665378, now seen corresponding path program 1 times [2022-12-13 13:42:19,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:42:19,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218910456] [2022-12-13 13:42:19,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:42:19,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:42:19,137 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 13:42:19,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899361960] [2022-12-13 13:42:19,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:42:19,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:42:19,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:42:19,139 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:42:19,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1ff5cf-9ea1-4088-bbf4-ca59f71a381a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-12-13 13:42:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:42:20,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 4134 conjuncts, 128 conjunts are in the unsatisfiable core [2022-12-13 13:42:20,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:42:20,290 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9249 Int) (v_ArrVal_9247 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9247))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9249)) |c_#memory_$Pointer$.offset|))) is different from true [2022-12-13 13:42:20,303 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9249 Int) (v_ArrVal_9247 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_9247))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_9249))))) is different from true [2022-12-13 13:42:20,353 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-13 13:42:20,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 42 [2022-12-13 13:42:20,369 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-13 13:42:20,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 36 [2022-12-13 13:42:21,025 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9250 Int) (v_ArrVal_9251 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9251))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9250))))) is different from true [2022-12-13 13:42:33,467 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 13:42:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 687 proven. 52 refuted. 15 times theorem prover too weak. 363 trivial. 19 not checked. [2022-12-13 13:42:33,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:42:35,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:42:35,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218910456] [2022-12-13 13:42:35,932 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 13:42:35,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899361960] [2022-12-13 13:42:35,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899361960] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:42:35,932 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:42:35,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2022-12-13 13:42:35,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244134733] [2022-12-13 13:42:35,933 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 13:42:35,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 13:42:35,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:42:35,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 13:42:35,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=557, Unknown=29, NotChecked=150, Total=812 [2022-12-13 13:42:35,934 INFO L87 Difference]: Start difference. First operand 6456 states and 11795 transitions. Second operand has 28 states, 25 states have (on average 7.48) internal successors, (187), 27 states have internal predecessors, (187), 14 states have call successors, (46), 4 states have call predecessors, (46), 10 states have return successors, (44), 12 states have call predecessors, (44), 14 states have call successors, (44) [2022-12-13 13:42:38,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:42:41,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:42:43,125 WARN L539 Checker$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 13:42:45,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:42:47,320 WARN L539 Checker$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 13:42:49,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:42:51,568 WARN L539 Checker$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 13:42:53,645 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 13:42:53,658 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9250 Int) (v_ArrVal_9251 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9251))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9250))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9249 Int) (v_ArrVal_9247 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9247))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9249)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-12-13 13:42:57,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:42:59,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:03,874 WARN L539 Checker$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 13:43:05,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:09,994 WARN L539 Checker$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 13:43:12,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:16,106 WARN L539 Checker$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 13:43:20,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:24,277 WARN L539 Checker$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 13:43:26,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:28,307 WARN L539 Checker$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 13:43:30,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:32,320 WARN L539 Checker$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 13:43:36,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:38,440 WARN L539 Checker$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 13:43:42,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:46,615 WARN L539 Checker$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 13:43:48,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:54,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:56,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:43:58,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:44:05,077 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]