./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a --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 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c --- 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-b5237d8 [2022-11-21 16:47:34,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:47:34,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:47:34,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:47:34,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:47:34,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:47:34,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:47:34,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:47:34,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:47:34,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:47:34,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:47:34,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:47:34,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:47:34,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:47:34,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:47:34,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:47:34,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:47:34,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:47:34,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:47:34,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:47:34,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:47:34,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:47:34,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:47:34,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:47:34,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:47:34,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:47:34,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:47:34,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:47:34,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:47:34,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:47:34,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:47:34,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:47:34,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:47:34,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:47:34,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:47:34,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:47:34,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:47:34,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:47:34,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:47:34,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:47:34,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:47:34,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:47:34,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:47:34,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:47:34,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:47:34,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:47:34,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:47:34,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:47:34,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:47:34,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:47:34,952 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:47:34,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:47:34,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:47:34,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:47:34,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:47:34,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:47:34,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:47:34,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:47:34,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:47:34,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:47:34,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:47:34,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:47:34,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:47:34,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:47:34,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:47:34,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:47:34,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:47:34,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:47:34,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:47:34,957 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:47:34,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:47:34,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:47:34,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c [2022-11-21 16:47:35,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:47:35,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:47:35,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:47:35,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:47:35,359 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:47:35,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2022-11-21 16:47:38,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:47:39,436 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:47:39,437 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2022-11-21 16:47:39,488 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/data/37d21e6fd/daeb9552455348d7b2d0e16689a338d3/FLAG0592bfd4a [2022-11-21 16:47:39,509 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/data/37d21e6fd/daeb9552455348d7b2d0e16689a338d3 [2022-11-21 16:47:39,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:47:39,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:47:39,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:47:39,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:47:39,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:47:39,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:47:39" (1/1) ... [2022-11-21 16:47:39,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d425ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:39, skipping insertion in model container [2022-11-21 16:47:39,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:47:39" (1/1) ... [2022-11-21 16:47:39,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:47:39,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:47:40,003 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_f0ff9256-61b8-470d-96ef-6c362f4636d6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2022-11-21 16:47:40,011 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_f0ff9256-61b8-470d-96ef-6c362f4636d6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2022-11-21 16:47:41,070 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:41,071 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:41,072 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:41,073 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:41,075 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:41,096 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:41,097 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:41,099 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:41,100 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:41,701 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-21 16:47:41,705 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-21 16:47:41,707 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-21 16:47:41,709 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-21 16:47:41,717 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-21 16:47:41,719 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-21 16:47:41,722 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-21 16:47:41,726 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-21 16:47:41,727 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-21 16:47:41,730 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-21 16:47:41,986 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-21 16:47:42,193 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,194 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:47:42,310 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:47:42,326 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_f0ff9256-61b8-470d-96ef-6c362f4636d6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2022-11-21 16:47:42,326 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_f0ff9256-61b8-470d-96ef-6c362f4636d6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2022-11-21 16:47:42,366 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,367 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,367 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,368 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,369 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,376 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,377 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,378 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,378 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,416 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-21 16:47:42,418 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-21 16:47:42,419 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-21 16:47:42,420 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-21 16:47:42,421 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-21 16:47:42,421 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-21 16:47:42,422 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-21 16:47:42,423 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-21 16:47:42,424 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-21 16:47:42,424 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-21 16:47:42,449 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-21 16:47:42,537 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,540 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-21 16:47:42,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:47:42,902 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:47:42,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42 WrapperNode [2022-11-21 16:47:42,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:47:42,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:47:42,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:47:42,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:47:42,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,164 INFO L138 Inliner]: procedures = 691, calls = 2649, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 872 [2022-11-21 16:47:43,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:47:43,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:47:43,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:47:43,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:47:43,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,299 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:47:43,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:47:43,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:47:43,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:47:43,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (1/1) ... [2022-11-21 16:47:43,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:47:43,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:47:43,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:47:43,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-21 16:47:43,411 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-21 16:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-21 16:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:47:43,411 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-21 16:47:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-21 16:47:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:47:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2022-11-21 16:47:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2022-11-21 16:47:43,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-21 16:47:43,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-21 16:47:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:47:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:47:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-11-21 16:47:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-11-21 16:47:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:47:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:47:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:47:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-21 16:47:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-21 16:47:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-21 16:47:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-21 16:47:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:47:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:47:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:47:43,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:47:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-21 16:47:43,418 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-21 16:47:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:47:43,418 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-21 16:47:43,419 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-21 16:47:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:47:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-21 16:47:43,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-11-21 16:47:43,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:47:43,868 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:47:43,870 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:47:45,532 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:47:45,540 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:47:45,540 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:47:45,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:45 BoogieIcfgContainer [2022-11-21 16:47:45,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:47:45,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:47:45,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:47:45,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:47:45,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:47:39" (1/3) ... [2022-11-21 16:47:45,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6614a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:47:45, skipping insertion in model container [2022-11-21 16:47:45,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:42" (2/3) ... [2022-11-21 16:47:45,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6614a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:47:45, skipping insertion in model container [2022-11-21 16:47:45,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:45" (3/3) ... [2022-11-21 16:47:45,553 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness.i [2022-11-21 16:47:45,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:47:45,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:47:45,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:47:45,653 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;@2f68aaa8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:47:45,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:47:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-11-21 16:47:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-21 16:47:45,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:47:45,676 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 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] [2022-11-21 16:47:45,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:47:45,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:47:45,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1846687754, now seen corresponding path program 1 times [2022-11-21 16:47:45,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:47:45,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163287878] [2022-11-21 16:47:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:45,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:47:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:47:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:47:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:47:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:47:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:47:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:47:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:47:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:47:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:47:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:47:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 16:47:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:47:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:47:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-21 16:47:46,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:47:46,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163287878] [2022-11-21 16:47:46,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163287878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:47:46,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:47:46,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:47:46,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875669662] [2022-11-21 16:47:46,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:47:46,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:47:46,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:47:46,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:47:46,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:47:46,977 INFO L87 Difference]: Start difference. First operand has 134 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 82 states have internal predecessors, (100), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-21 16:47:47,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:47:47,578 INFO L93 Difference]: Finished difference Result 267 states and 385 transitions. [2022-11-21 16:47:47,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:47:47,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 102 [2022-11-21 16:47:47,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:47:47,601 INFO L225 Difference]: With dead ends: 267 [2022-11-21 16:47:47,601 INFO L226 Difference]: Without dead ends: 131 [2022-11-21 16:47:47,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:47:47,621 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 106 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:47:47,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 151 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:47:47,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-21 16:47:47,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2022-11-21 16:47:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 77 states have internal predecessors, (92), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-21 16:47:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2022-11-21 16:47:47,686 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 102 [2022-11-21 16:47:47,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:47:47,687 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2022-11-21 16:47:47,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-21 16:47:47,688 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2022-11-21 16:47:47,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-21 16:47:47,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:47:47,692 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 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] [2022-11-21 16:47:47,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:47:47,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:47:47,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:47:47,693 INFO L85 PathProgramCache]: Analyzing trace with hash -192509010, now seen corresponding path program 1 times [2022-11-21 16:47:47,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:47:47,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173898499] [2022-11-21 16:47:47,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:47,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:47:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:47:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:47:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:47:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:47:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:47:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:47:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:47:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:47:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:47:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:47:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 16:47:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:47:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:47:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-21 16:47:48,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:47:48,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173898499] [2022-11-21 16:47:48,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173898499] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:47:48,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647261113] [2022-11-21 16:47:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:48,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:47:48,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:47:48,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:47:48,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:47:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:49,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 2658 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:47:49,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:47:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-21 16:47:49,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:47:49,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647261113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:47:49,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:47:49,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-21 16:47:49,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006786275] [2022-11-21 16:47:49,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:47:49,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:47:49,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:47:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:47:49,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:47:49,831 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-21 16:47:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:47:50,140 INFO L93 Difference]: Finished difference Result 252 states and 341 transitions. [2022-11-21 16:47:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:47:50,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 102 [2022-11-21 16:47:50,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:47:50,148 INFO L225 Difference]: With dead ends: 252 [2022-11-21 16:47:50,148 INFO L226 Difference]: Without dead ends: 131 [2022-11-21 16:47:50,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:47:50,151 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 186 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:47:50,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 337 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:47:50,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-21 16:47:50,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-11-21 16:47:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 40 states have call successors, (40), 11 states have call predecessors, (40), 12 states have return successors, (45), 39 states have call predecessors, (45), 39 states have call successors, (45) [2022-11-21 16:47:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 179 transitions. [2022-11-21 16:47:50,186 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 179 transitions. Word has length 102 [2022-11-21 16:47:50,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:47:50,187 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 179 transitions. [2022-11-21 16:47:50,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-21 16:47:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 179 transitions. [2022-11-21 16:47:50,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-21 16:47:50,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:47:50,195 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 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] [2022-11-21 16:47:50,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-21 16:47:50,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-21 16:47:50,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:47:50,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:47:50,405 INFO L85 PathProgramCache]: Analyzing trace with hash -49851437, now seen corresponding path program 1 times [2022-11-21 16:47:50,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:47:50,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537933768] [2022-11-21 16:47:50,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:50,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:47:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:47:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:47:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:47:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:47:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:47:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:47:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:47:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:47:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:47:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:47:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:47:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 16:47:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:47:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:51,793 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-21 16:47:51,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:47:51,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537933768] [2022-11-21 16:47:51,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537933768] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:47:51,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838664145] [2022-11-21 16:47:51,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:51,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:47:51,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:47:51,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:47:51,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:47:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:52,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 2663 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:47:52,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:47:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-21 16:47:52,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:47:52,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838664145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:47:52,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:47:52,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-21 16:47:52,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957873117] [2022-11-21 16:47:52,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:47:52,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:47:52,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:47:52,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:47:52,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:47:52,617 INFO L87 Difference]: Start difference. First operand 131 states and 179 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-21 16:47:53,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:47:53,013 INFO L93 Difference]: Finished difference Result 212 states and 290 transitions. [2022-11-21 16:47:53,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:47:53,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 104 [2022-11-21 16:47:53,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:47:53,019 INFO L225 Difference]: With dead ends: 212 [2022-11-21 16:47:53,019 INFO L226 Difference]: Without dead ends: 131 [2022-11-21 16:47:53,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:47:53,023 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 206 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:47:53,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 537 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:47:53,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-21 16:47:53,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-11-21 16:47:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 40 states have call successors, (40), 11 states have call predecessors, (40), 12 states have return successors, (43), 39 states have call predecessors, (43), 39 states have call successors, (43) [2022-11-21 16:47:53,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 177 transitions. [2022-11-21 16:47:53,059 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 177 transitions. Word has length 104 [2022-11-21 16:47:53,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:47:53,060 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 177 transitions. [2022-11-21 16:47:53,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-21 16:47:53,060 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 177 transitions. [2022-11-21 16:47:53,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-21 16:47:53,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:47:53,062 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 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] [2022-11-21 16:47:53,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:47:53,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:47:53,274 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:47:53,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:47:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash 160212765, now seen corresponding path program 2 times [2022-11-21 16:47:53,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:47:53,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428733734] [2022-11-21 16:47:53,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:53,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:47:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:47:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:53,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:53,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:47:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:53,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:47:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:47:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:47:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:47:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:47:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:47:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:47:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:47:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:47:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:47:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:47:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:54,204 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-21 16:47:54,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:47:54,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428733734] [2022-11-21 16:47:54,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428733734] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:47:54,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699973909] [2022-11-21 16:47:54,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:47:54,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:47:54,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:47:54,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:47:54,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:47:54,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:47:54,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:47:54,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 2310 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-21 16:47:54,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:47:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-21 16:47:54,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:47:54,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699973909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:47:54,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:47:54,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2022-11-21 16:47:54,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495791335] [2022-11-21 16:47:54,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:47:54,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:47:54,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:47:54,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:47:54,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:47:54,923 INFO L87 Difference]: Start difference. First operand 131 states and 177 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-21 16:47:55,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:47:55,028 INFO L93 Difference]: Finished difference Result 143 states and 196 transitions. [2022-11-21 16:47:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:47:55,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2022-11-21 16:47:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:47:55,030 INFO L225 Difference]: With dead ends: 143 [2022-11-21 16:47:55,031 INFO L226 Difference]: Without dead ends: 141 [2022-11-21 16:47:55,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:47:55,032 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 17 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:47:55,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1166 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:47:55,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-21 16:47:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2022-11-21 16:47:55,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 87 states have internal predecessors, (100), 41 states have call successors, (41), 12 states have call predecessors, (41), 14 states have return successors, (52), 40 states have call predecessors, (52), 40 states have call successors, (52) [2022-11-21 16:47:55,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2022-11-21 16:47:55,050 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 108 [2022-11-21 16:47:55,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:47:55,051 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2022-11-21 16:47:55,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-21 16:47:55,051 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2022-11-21 16:47:55,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-21 16:47:55,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:47:55,053 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 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] [2022-11-21 16:47:55,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:47:55,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:47:55,267 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:47:55,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:47:55,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1574940187, now seen corresponding path program 1 times [2022-11-21 16:47:55,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:47:55,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251624688] [2022-11-21 16:47:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:55,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:47:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:47:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:47:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:47:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:47:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:47:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:47:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:47:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:47:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:47:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:55,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:47:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:56,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:47:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:56,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:47:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:56,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:56,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:56,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:47:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:56,063 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-21 16:47:56,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:47:56,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251624688] [2022-11-21 16:47:56,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251624688] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:47:56,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560806403] [2022-11-21 16:47:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:56,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:47:56,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:47:56,066 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:47:56,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:47:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:56,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 2685 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:47:56,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:47:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-21 16:47:56,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:47:56,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560806403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:47:56,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:47:56,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-11-21 16:47:56,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16810710] [2022-11-21 16:47:56,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:47:56,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:47:56,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:47:56,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:47:56,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:47:56,840 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-21 16:47:57,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:47:57,239 INFO L93 Difference]: Finished difference Result 245 states and 337 transitions. [2022-11-21 16:47:57,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:47:57,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 112 [2022-11-21 16:47:57,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:47:57,246 INFO L225 Difference]: With dead ends: 245 [2022-11-21 16:47:57,247 INFO L226 Difference]: Without dead ends: 137 [2022-11-21 16:47:57,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:47:57,249 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 205 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:47:57,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 540 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:47:57,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-21 16:47:57,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-21 16:47:57,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 84 states have internal predecessors, (97), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (48), 40 states have call predecessors, (48), 40 states have call successors, (48) [2022-11-21 16:47:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 186 transitions. [2022-11-21 16:47:57,276 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 186 transitions. Word has length 112 [2022-11-21 16:47:57,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:47:57,280 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 186 transitions. [2022-11-21 16:47:57,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-21 16:47:57,280 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 186 transitions. [2022-11-21 16:47:57,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-21 16:47:57,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:47:57,286 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 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] [2022-11-21 16:47:57,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:47:57,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:47:57,499 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:47:57,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:47:57,499 INFO L85 PathProgramCache]: Analyzing trace with hash 660367434, now seen corresponding path program 1 times [2022-11-21 16:47:57,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:47:57,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508018303] [2022-11-21 16:47:57,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:57,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:47:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:59,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:47:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:47:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:59,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:47:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:59,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:47:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:59,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:47:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:59,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:47:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:48:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:48:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:48:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:48:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:48:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:48:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:48:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:48:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:48:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:48:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:48:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-11-21 16:48:00,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:00,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508018303] [2022-11-21 16:48:00,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508018303] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:00,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451851054] [2022-11-21 16:48:00,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:00,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:00,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:00,809 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:00,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:48:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:01,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 2690 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-21 16:48:01,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:02,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:48:02,031 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-21 16:48:02,032 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 1 case distinctions, treesize of input 39 treesize of output 34 [2022-11-21 16:48:03,020 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 16:48:03,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 20 [2022-11-21 16:48:03,145 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 38 proven. 36 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-21 16:48:03,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:04,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451851054] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:04,187 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:48:04,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 23 [2022-11-21 16:48:04,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593365583] [2022-11-21 16:48:04,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:04,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-21 16:48:04,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:04,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-21 16:48:04,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=721, Unknown=0, NotChecked=0, Total=812 [2022-11-21 16:48:04,190 INFO L87 Difference]: Start difference. First operand 137 states and 186 transitions. Second operand has 23 states, 20 states have (on average 4.35) internal successors, (87), 20 states have internal predecessors, (87), 13 states have call successors, (34), 6 states have call predecessors, (34), 7 states have return successors, (33), 10 states have call predecessors, (33), 13 states have call successors, (33) [2022-11-21 16:48:11,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:11,847 INFO L93 Difference]: Finished difference Result 561 states and 826 transitions. [2022-11-21 16:48:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-21 16:48:11,848 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 4.35) internal successors, (87), 20 states have internal predecessors, (87), 13 states have call successors, (34), 6 states have call predecessors, (34), 7 states have return successors, (33), 10 states have call predecessors, (33), 13 states have call successors, (33) Word has length 114 [2022-11-21 16:48:11,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:11,852 INFO L225 Difference]: With dead ends: 561 [2022-11-21 16:48:11,852 INFO L226 Difference]: Without dead ends: 474 [2022-11-21 16:48:11,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 200 SyntacticMatches, 13 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=461, Invalid=2961, Unknown=0, NotChecked=0, Total=3422 [2022-11-21 16:48:11,855 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 625 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 3336 mSolverCounterSat, 763 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 763 IncrementalHoareTripleChecker+Valid, 3336 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:11,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 833 Invalid, 4125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [763 Valid, 3336 Invalid, 26 Unknown, 0 Unchecked, 5.7s Time] [2022-11-21 16:48:11,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-21 16:48:11,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 333. [2022-11-21 16:48:11,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 192 states have (on average 1.171875) internal successors, (225), 197 states have internal predecessors, (225), 112 states have call successors, (112), 26 states have call predecessors, (112), 28 states have return successors, (136), 109 states have call predecessors, (136), 110 states have call successors, (136) [2022-11-21 16:48:11,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 473 transitions. [2022-11-21 16:48:11,929 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 473 transitions. Word has length 114 [2022-11-21 16:48:11,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:11,930 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 473 transitions. [2022-11-21 16:48:11,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 4.35) internal successors, (87), 20 states have internal predecessors, (87), 13 states have call successors, (34), 6 states have call predecessors, (34), 7 states have return successors, (33), 10 states have call predecessors, (33), 13 states have call successors, (33) [2022-11-21 16:48:11,931 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 473 transitions. [2022-11-21 16:48:11,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-21 16:48:11,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:11,933 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 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] [2022-11-21 16:48:11,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-21 16:48:12,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-21 16:48:12,143 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:48:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:12,144 INFO L85 PathProgramCache]: Analyzing trace with hash -448097721, now seen corresponding path program 1 times [2022-11-21 16:48:12,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:12,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752564392] [2022-11-21 16:48:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:12,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:15,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:48:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:48:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:48:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:48:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:48:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:48:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:48:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:48:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:48:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:48:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:48:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 16:48:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:48:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 16:48:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:48:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:48:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:48:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:16,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:48:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 1 proven. 35 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-21 16:48:17,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:17,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752564392] [2022-11-21 16:48:17,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752564392] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:17,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183711264] [2022-11-21 16:48:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:17,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:17,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:17,015 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:17,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:48:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:17,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-21 16:48:17,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:18,193 INFO L321 Elim1Store]: treesize reduction 51, result has 25.0 percent of original size [2022-11-21 16:48:18,193 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 39 treesize of output 44 [2022-11-21 16:48:18,332 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-21 16:48:18,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 23 [2022-11-21 16:48:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 76 proven. 8 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-21 16:48:18,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:19,106 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 26 treesize of output 14 [2022-11-21 16:48:19,163 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-21 16:48:19,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 24 [2022-11-21 16:48:19,202 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-21 16:48:19,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183711264] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:48:19,203 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:48:19,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13, 11] total 33 [2022-11-21 16:48:19,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977956073] [2022-11-21 16:48:19,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:48:19,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-21 16:48:19,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:19,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-21 16:48:19,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056 [2022-11-21 16:48:19,205 INFO L87 Difference]: Start difference. First operand 333 states and 473 transitions. Second operand has 33 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 30 states have internal predecessors, (114), 16 states have call successors, (45), 7 states have call predecessors, (45), 10 states have return successors, (44), 13 states have call predecessors, (44), 16 states have call successors, (44) [2022-11-21 16:48:35,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:35,094 INFO L93 Difference]: Finished difference Result 905 states and 1341 transitions. [2022-11-21 16:48:35,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-21 16:48:35,096 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 30 states have internal predecessors, (114), 16 states have call successors, (45), 7 states have call predecessors, (45), 10 states have return successors, (44), 13 states have call predecessors, (44), 16 states have call successors, (44) Word has length 125 [2022-11-21 16:48:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:35,102 INFO L225 Difference]: With dead ends: 905 [2022-11-21 16:48:35,103 INFO L226 Difference]: Without dead ends: 760 [2022-11-21 16:48:35,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 270 SyntacticMatches, 8 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1183 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=582, Invalid=4248, Unknown=0, NotChecked=0, Total=4830 [2022-11-21 16:48:35,106 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 789 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 6276 mSolverCounterSat, 827 mSolverCounterUnsat, 75 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 7178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 6276 IncrementalHoareTripleChecker+Invalid, 75 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:35,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1032 Invalid, 7178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [827 Valid, 6276 Invalid, 75 Unknown, 0 Unchecked, 12.9s Time] [2022-11-21 16:48:35,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-11-21 16:48:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 438. [2022-11-21 16:48:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 259 states have (on average 1.1737451737451738) internal successors, (304), 265 states have internal predecessors, (304), 140 states have call successors, (140), 35 states have call predecessors, (140), 38 states have return successors, (168), 137 states have call predecessors, (168), 137 states have call successors, (168) [2022-11-21 16:48:35,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 612 transitions. [2022-11-21 16:48:35,239 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 612 transitions. Word has length 125 [2022-11-21 16:48:35,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:35,239 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 612 transitions. [2022-11-21 16:48:35,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 30 states have internal predecessors, (114), 16 states have call successors, (45), 7 states have call predecessors, (45), 10 states have return successors, (44), 13 states have call predecessors, (44), 16 states have call successors, (44) [2022-11-21 16:48:35,240 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 612 transitions. [2022-11-21 16:48:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-21 16:48:35,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:35,244 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-11-21 16:48:35,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-21 16:48:35,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:35,455 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:48:35,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:35,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2101213146, now seen corresponding path program 2 times [2022-11-21 16:48:35,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:35,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723683294] [2022-11-21 16:48:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:35,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:48:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:48:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:48:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:48:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:48:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:48:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:48:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:48:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:48:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:48:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 16:48:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:48:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 16:48:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 16:48:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:48:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:48:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 16:48:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-21 16:48:36,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:36,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723683294] [2022-11-21 16:48:36,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723683294] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:36,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997544011] [2022-11-21 16:48:36,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:48:36,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:36,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:36,834 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:36,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 16:48:37,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:48:37,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:48:37,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 2714 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-21 16:48:37,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:37,607 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 10 treesize of output 8 [2022-11-21 16:48:37,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:48:37,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2022-11-21 16:48:39,955 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_10| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_12| Int)) (and (= (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_10|) 0) (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_12|) 0)) (not (= |v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_12| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_10|)))) is different from true [2022-11-21 16:48:42,118 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_11| Int)) (and (not (= |v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_13| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_11|)) (= (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_11|) 0) (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_13|) 0)))) is different from true [2022-11-21 16:48:44,212 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_12| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_14| Int)) (and (not (= |v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_14| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_12|)) (= (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_12|) 0) (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_14|) 0)))) is different from true [2022-11-21 16:48:46,327 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_15| Int)) (and (not (= |v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_15| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_13|)) (= (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_13|) 0) (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_~b#1.base_BEFORE_CALL_15|) 0)))) is different from true [2022-11-21 16:48:46,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-11-21 16:48:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 63 proven. 0 refuted. 16 times theorem prover too weak. 31 trivial. 11 not checked. [2022-11-21 16:48:46,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:48:47,283 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 31 treesize of output 27 [2022-11-21 16:48:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-21 16:48:47,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997544011] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:47,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:48:47,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 15] total 30 [2022-11-21 16:48:47,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145173173] [2022-11-21 16:48:47,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:48:47,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:48:47,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:48:47,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:48:47,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=583, Unknown=4, NotChecked=204, Total=870 [2022-11-21 16:48:47,390 INFO L87 Difference]: Start difference. First operand 438 states and 612 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2022-11-21 16:48:49,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:48:49,588 INFO L93 Difference]: Finished difference Result 653 states and 920 transitions. [2022-11-21 16:48:49,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:48:49,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 122 [2022-11-21 16:48:49,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:48:49,593 INFO L225 Difference]: With dead ends: 653 [2022-11-21 16:48:49,593 INFO L226 Difference]: Without dead ends: 518 [2022-11-21 16:48:49,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 251 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=110, Invalid=832, Unknown=4, NotChecked=244, Total=1190 [2022-11-21 16:48:49,595 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 154 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 108 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:48:49,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 485 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 925 Invalid, 4 Unknown, 0 Unchecked, 1.7s Time] [2022-11-21 16:48:49,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-11-21 16:48:49,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 458. [2022-11-21 16:48:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 267 states have (on average 1.1685393258426966) internal successors, (312), 275 states have internal predecessors, (312), 151 states have call successors, (151), 35 states have call predecessors, (151), 39 states have return successors, (188), 147 states have call predecessors, (188), 148 states have call successors, (188) [2022-11-21 16:48:49,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 651 transitions. [2022-11-21 16:48:49,736 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 651 transitions. Word has length 122 [2022-11-21 16:48:49,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:48:49,736 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 651 transitions. [2022-11-21 16:48:49,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 7 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2022-11-21 16:48:49,737 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 651 transitions. [2022-11-21 16:48:49,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-21 16:48:49,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:48:49,742 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 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] [2022-11-21 16:48:49,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:48:49,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:49,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:48:49,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:48:49,953 INFO L85 PathProgramCache]: Analyzing trace with hash 565970727, now seen corresponding path program 2 times [2022-11-21 16:48:49,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:48:49,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754524563] [2022-11-21 16:48:49,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:48:49,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:48:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:48:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:51,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:48:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:51,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:48:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:48:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:48:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:51,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:48:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:51,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:48:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:51,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:48:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:51,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:48:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:48:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:48:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 16:48:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:48:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 16:48:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:48:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:48:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:48:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:48:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:48:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-11-21 16:48:52,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:48:52,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754524563] [2022-11-21 16:48:52,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754524563] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:48:52,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789848936] [2022-11-21 16:48:52,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:48:52,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:48:52,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:48:52,079 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:48:52,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 16:48:53,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:48:53,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:48:53,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-21 16:48:53,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:48:53,101 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-21 16:48:53,101 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 19 treesize of output 18 [2022-11-21 16:48:53,506 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-21 16:48:53,506 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 [2022-11-21 16:48:53,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 16:48:53,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 16:48:53,857 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 28 treesize of output 30 [2022-11-21 16:48:53,862 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 28 treesize of output 30 [2022-11-21 16:49:20,117 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 35 proven. 64 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-21 16:49:20,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:49:21,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789848936] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:49:21,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:49:21,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20] total 32 [2022-11-21 16:49:21,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816379361] [2022-11-21 16:49:21,164 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:49:21,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-21 16:49:21,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:49:21,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-21 16:49:21,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1424, Unknown=6, NotChecked=0, Total=1560 [2022-11-21 16:49:21,166 INFO L87 Difference]: Start difference. First operand 458 states and 651 transitions. Second operand has 32 states, 30 states have (on average 3.8333333333333335) internal successors, (115), 30 states have internal predecessors, (115), 13 states have call successors, (37), 8 states have call predecessors, (37), 9 states have return successors, (36), 11 states have call predecessors, (36), 13 states have call successors, (36) [2022-11-21 16:49:24,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:27,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:29,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:31,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:38,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:40,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:42,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:44,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:46,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:52,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:54,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:49:57,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:50:01,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:50:03,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:50:06,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:50:08,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:50:11,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:50:13,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:50:16,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:50:21,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:50:21,347 INFO L93 Difference]: Finished difference Result 1022 states and 1473 transitions. [2022-11-21 16:50:21,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-21 16:50:21,348 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 3.8333333333333335) internal successors, (115), 30 states have internal predecessors, (115), 13 states have call successors, (37), 8 states have call predecessors, (37), 9 states have return successors, (36), 11 states have call predecessors, (36), 13 states have call successors, (36) Word has length 125 [2022-11-21 16:50:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:50:21,355 INFO L225 Difference]: With dead ends: 1022 [2022-11-21 16:50:21,355 INFO L226 Difference]: Without dead ends: 848 [2022-11-21 16:50:21,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 193 SyntacticMatches, 19 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1433 ImplicationChecksByTransitivity, 37.7s TimeCoverageRelationStatistics Valid=698, Invalid=5136, Unknown=18, NotChecked=0, Total=5852 [2022-11-21 16:50:21,359 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 731 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 5877 mSolverCounterSat, 857 mSolverCounterUnsat, 82 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 6816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 857 IncrementalHoareTripleChecker+Valid, 5877 IncrementalHoareTripleChecker+Invalid, 82 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:50:21,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1165 Invalid, 6816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [857 Valid, 5877 Invalid, 82 Unknown, 0 Unchecked, 48.8s Time] [2022-11-21 16:50:21,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2022-11-21 16:50:21,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 668. [2022-11-21 16:50:21,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 398 states have (on average 1.178391959798995) internal successors, (469), 410 states have internal predecessors, (469), 210 states have call successors, (210), 54 states have call predecessors, (210), 59 states have return successors, (262), 203 states have call predecessors, (262), 204 states have call successors, (262) [2022-11-21 16:50:21,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 941 transitions. [2022-11-21 16:50:21,501 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 941 transitions. Word has length 125 [2022-11-21 16:50:21,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:50:21,502 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 941 transitions. [2022-11-21 16:50:21,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 3.8333333333333335) internal successors, (115), 30 states have internal predecessors, (115), 13 states have call successors, (37), 8 states have call predecessors, (37), 9 states have return successors, (36), 11 states have call predecessors, (36), 13 states have call successors, (36) [2022-11-21 16:50:21,502 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 941 transitions. [2022-11-21 16:50:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-21 16:50:21,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:50:21,506 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-11-21 16:50:21,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:50:21,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-21 16:50:21,719 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:50:21,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:50:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash 627389311, now seen corresponding path program 3 times [2022-11-21 16:50:21,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:50:21,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50276013] [2022-11-21 16:50:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:50:21,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:50:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:22,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:50:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:22,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:50:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:22,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:50:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:22,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:50:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:22,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:50:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:50:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:50:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:50:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:50:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:50:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 16:50:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:50:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:50:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 16:50:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:50:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:50:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 16:50:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:23,203 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-21 16:50:23,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:50:23,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50276013] [2022-11-21 16:50:23,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50276013] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:50:23,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680527278] [2022-11-21 16:50:23,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:50:23,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:50:23,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:50:23,206 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:50:23,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 16:50:24,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-21 16:50:24,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:50:24,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 2378 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-21 16:50:24,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:50:27,230 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.offset_BEFORE_CALL_30| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_31| Int)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_31|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.offset_BEFORE_CALL_30|)) 0))) (exists ((|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.offset_BEFORE_CALL_30| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_31| Int)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_31|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.offset_BEFORE_CALL_30|)) 0))) (exists ((|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.offset_BEFORE_CALL_30| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_31| Int)) (= (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.base_BEFORE_CALL_31|) |v_ULTIMATE.start_aws_byte_cursor_eq_~a#1.offset_BEFORE_CALL_30|) 18446744073709551616) 0))) is different from true [2022-11-21 16:50:37,344 WARN L233 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:50:51,511 WARN L233 SmtUtils]: Spent 14.05s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:51:05,659 WARN L233 SmtUtils]: Spent 14.04s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:51:19,866 WARN L233 SmtUtils]: Spent 14.05s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:51:34,111 WARN L233 SmtUtils]: Spent 14.05s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:51:48,312 WARN L233 SmtUtils]: Spent 14.03s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:51:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-21 16:51:48,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:51:51,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680527278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:51:51,649 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:51:51,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 23 [2022-11-21 16:51:51,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879510252] [2022-11-21 16:51:51,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:51:51,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-21 16:51:51,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:51:51,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-21 16:51:51,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=785, Unknown=2, NotChecked=56, Total=930 [2022-11-21 16:51:51,652 INFO L87 Difference]: Start difference. First operand 668 states and 941 transitions. Second operand has 23 states, 20 states have (on average 3.9) internal successors, (78), 19 states have internal predecessors, (78), 7 states have call successors, (32), 5 states have call predecessors, (32), 6 states have return successors, (31), 5 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-21 16:51:55,063 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] [2022-11-21 16:52:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:52:19,507 INFO L93 Difference]: Finished difference Result 1319 states and 1834 transitions. [2022-11-21 16:52:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 16:52:19,508 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 3.9) internal successors, (78), 19 states have internal predecessors, (78), 7 states have call successors, (32), 5 states have call predecessors, (32), 6 states have return successors, (31), 5 states have call predecessors, (31), 7 states have call successors, (31) Word has length 129 [2022-11-21 16:52:19,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:52:19,513 INFO L225 Difference]: With dead ends: 1319 [2022-11-21 16:52:19,513 INFO L226 Difference]: Without dead ends: 790 [2022-11-21 16:52:19,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 106.4s TimeCoverageRelationStatistics Valid=385, Invalid=2364, Unknown=11, NotChecked=102, Total=2862 [2022-11-21 16:52:19,517 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 236 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 91 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 210 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:52:19,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 945 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2264 Invalid, 1 Unknown, 210 Unchecked, 7.0s Time] [2022-11-21 16:52:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-11-21 16:52:19,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 740. [2022-11-21 16:52:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 462 states have (on average 1.1796536796536796) internal successors, (545), 477 states have internal predecessors, (545), 210 states have call successors, (210), 59 states have call predecessors, (210), 67 states have return successors, (273), 203 states have call predecessors, (273), 204 states have call successors, (273) [2022-11-21 16:52:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1028 transitions. [2022-11-21 16:52:19,641 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1028 transitions. Word has length 129 [2022-11-21 16:52:19,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:52:19,642 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 1028 transitions. [2022-11-21 16:52:19,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 3.9) internal successors, (78), 19 states have internal predecessors, (78), 7 states have call successors, (32), 5 states have call predecessors, (32), 6 states have return successors, (31), 5 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-21 16:52:19,642 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1028 transitions. [2022-11-21 16:52:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-21 16:52:19,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:52:19,646 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-21 16:52:19,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:52:19,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:52:19,851 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:52:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:52:19,852 INFO L85 PathProgramCache]: Analyzing trace with hash -265929512, now seen corresponding path program 1 times [2022-11-21 16:52:19,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:52:19,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561326035] [2022-11-21 16:52:19,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:19,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:52:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:52:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:52:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:52:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:52:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:52:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:52:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:52:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:52:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:52:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:52:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 16:52:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:52:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:52:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:21,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:52:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-21 16:52:21,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:52:21,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561326035] [2022-11-21 16:52:21,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561326035] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:52:21,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857740964] [2022-11-21 16:52:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:21,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:52:21,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:52:21,015 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:52:21,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 16:52:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:21,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 2759 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 16:52:21,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:52:21,771 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-21 16:52:21,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:52:21,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857740964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:52:21,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:52:21,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2022-11-21 16:52:21,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311024373] [2022-11-21 16:52:21,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:52:21,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:52:21,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:52:21,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:52:21,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:52:21,773 INFO L87 Difference]: Start difference. First operand 740 states and 1028 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 16:52:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:52:22,289 INFO L93 Difference]: Finished difference Result 1323 states and 1867 transitions. [2022-11-21 16:52:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:52:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 131 [2022-11-21 16:52:22,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:52:22,295 INFO L225 Difference]: With dead ends: 1323 [2022-11-21 16:52:22,295 INFO L226 Difference]: Without dead ends: 744 [2022-11-21 16:52:22,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:52:22,298 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 19 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:52:22,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 597 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:52:22,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-11-21 16:52:22,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 740. [2022-11-21 16:52:22,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 462 states have (on average 1.1623376623376624) internal successors, (537), 477 states have internal predecessors, (537), 210 states have call successors, (210), 59 states have call predecessors, (210), 67 states have return successors, (273), 203 states have call predecessors, (273), 204 states have call successors, (273) [2022-11-21 16:52:22,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1020 transitions. [2022-11-21 16:52:22,469 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1020 transitions. Word has length 131 [2022-11-21 16:52:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:52:22,469 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 1020 transitions. [2022-11-21 16:52:22,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 16:52:22,469 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1020 transitions. [2022-11-21 16:52:22,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-21 16:52:22,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:52:22,473 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-21 16:52:22,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 16:52:22,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-21 16:52:22,689 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:52:22,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:52:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2132638186, now seen corresponding path program 1 times [2022-11-21 16:52:22,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:52:22,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180737143] [2022-11-21 16:52:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:52:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:52:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:52:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:52:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:52:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:52:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:52:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:52:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:52:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:52:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:52:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 16:52:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:52:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:52:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:52:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-21 16:52:23,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:52:23,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180737143] [2022-11-21 16:52:23,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180737143] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:52:23,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293318257] [2022-11-21 16:52:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:23,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:52:23,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:52:23,953 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:52:23,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 16:52:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:24,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 16:52:24,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:52:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-11-21 16:52:24,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:52:24,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293318257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:52:24,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:52:24,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2022-11-21 16:52:24,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481413063] [2022-11-21 16:52:24,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:52:24,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:52:24,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:52:24,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:52:24,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:52:24,749 INFO L87 Difference]: Start difference. First operand 740 states and 1020 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-21 16:52:25,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:52:25,258 INFO L93 Difference]: Finished difference Result 1313 states and 1848 transitions. [2022-11-21 16:52:25,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:52:25,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 131 [2022-11-21 16:52:25,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:52:25,263 INFO L225 Difference]: With dead ends: 1313 [2022-11-21 16:52:25,263 INFO L226 Difference]: Without dead ends: 734 [2022-11-21 16:52:25,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:52:25,267 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 9 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:52:25,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 442 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:52:25,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-11-21 16:52:25,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 732. [2022-11-21 16:52:25,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 454 states have (on average 1.1387665198237886) internal successors, (517), 469 states have internal predecessors, (517), 210 states have call successors, (210), 59 states have call predecessors, (210), 67 states have return successors, (273), 203 states have call predecessors, (273), 204 states have call successors, (273) [2022-11-21 16:52:25,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1000 transitions. [2022-11-21 16:52:25,450 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1000 transitions. Word has length 131 [2022-11-21 16:52:25,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:52:25,451 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 1000 transitions. [2022-11-21 16:52:25,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-21 16:52:25,452 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1000 transitions. [2022-11-21 16:52:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-21 16:52:25,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:52:25,457 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:52:25,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 16:52:25,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-21 16:52:25,674 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:52:25,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:52:25,674 INFO L85 PathProgramCache]: Analyzing trace with hash 140507871, now seen corresponding path program 1 times [2022-11-21 16:52:25,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:52:25,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144103514] [2022-11-21 16:52:25,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:25,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:52:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:52:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:52:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:52:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:52:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:52:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:52:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:52:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:52:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:52:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:52:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 16:52:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:52:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:52:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:52:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-21 16:52:27,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:52:27,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144103514] [2022-11-21 16:52:27,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144103514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:52:27,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:52:27,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 16:52:27,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909365578] [2022-11-21 16:52:27,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:52:27,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:52:27,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:52:27,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:52:27,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:52:27,456 INFO L87 Difference]: Start difference. First operand 732 states and 1000 transitions. Second operand has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-21 16:52:29,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:52:29,175 INFO L93 Difference]: Finished difference Result 765 states and 1037 transitions. [2022-11-21 16:52:29,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 16:52:29,176 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2022-11-21 16:52:29,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:52:29,181 INFO L225 Difference]: With dead ends: 765 [2022-11-21 16:52:29,181 INFO L226 Difference]: Without dead ends: 763 [2022-11-21 16:52:29,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2022-11-21 16:52:29,183 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 95 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:52:29,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 987 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-21 16:52:29,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2022-11-21 16:52:29,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 734. [2022-11-21 16:52:29,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 457 states have (on average 1.1378555798687089) internal successors, (520), 472 states have internal predecessors, (520), 208 states have call successors, (208), 60 states have call predecessors, (208), 68 states have return successors, (271), 201 states have call predecessors, (271), 202 states have call successors, (271) [2022-11-21 16:52:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 999 transitions. [2022-11-21 16:52:29,319 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 999 transitions. Word has length 133 [2022-11-21 16:52:29,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:52:29,319 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 999 transitions. [2022-11-21 16:52:29,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.071428571428571) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-21 16:52:29,320 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 999 transitions. [2022-11-21 16:52:29,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-21 16:52:29,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:52:29,323 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 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] [2022-11-21 16:52:29,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:52:29,324 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:52:29,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:52:29,324 INFO L85 PathProgramCache]: Analyzing trace with hash -226410282, now seen corresponding path program 1 times [2022-11-21 16:52:29,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:52:29,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543330819] [2022-11-21 16:52:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:29,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:52:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:29,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:52:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:29,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:29,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:52:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:52:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:29,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:52:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:52:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:52:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:52:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:52:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:52:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:52:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:52:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:52:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:52:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 16:52:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 16:52:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-11-21 16:52:30,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:52:30,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543330819] [2022-11-21 16:52:30,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543330819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:52:30,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:52:30,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:52:30,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615911186] [2022-11-21 16:52:30,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:52:30,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:52:30,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:52:30,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:52:30,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:52:30,192 INFO L87 Difference]: Start difference. First operand 734 states and 999 transitions. Second operand has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-21 16:52:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:52:31,223 INFO L93 Difference]: Finished difference Result 762 states and 1029 transitions. [2022-11-21 16:52:31,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:52:31,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2022-11-21 16:52:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:52:31,236 INFO L225 Difference]: With dead ends: 762 [2022-11-21 16:52:31,236 INFO L226 Difference]: Without dead ends: 760 [2022-11-21 16:52:31,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:52:31,239 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 121 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:52:31,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 598 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 16:52:31,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-11-21 16:52:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 753. [2022-11-21 16:52:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 469 states have (on average 1.1343283582089552) internal successors, (532), 484 states have internal predecessors, (532), 211 states have call successors, (211), 64 states have call predecessors, (211), 72 states have return successors, (274), 204 states have call predecessors, (274), 205 states have call successors, (274) [2022-11-21 16:52:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1017 transitions. [2022-11-21 16:52:31,459 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1017 transitions. Word has length 125 [2022-11-21 16:52:31,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:52:31,460 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 1017 transitions. [2022-11-21 16:52:31,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-21 16:52:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1017 transitions. [2022-11-21 16:52:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-21 16:52:31,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:52:31,466 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:52:31,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:52:31,466 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:52:31,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:52:31,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1055067176, now seen corresponding path program 1 times [2022-11-21 16:52:31,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:52:31,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988224211] [2022-11-21 16:52:31,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:31,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:52:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:52:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:52:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:52:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:52:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:52:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:52:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:52:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:52:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:52:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:52:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:52:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:52:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:52:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 16:52:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:34,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 16:52:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:35,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 16:52:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-11-21 16:52:35,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:52:35,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988224211] [2022-11-21 16:52:35,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988224211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:52:35,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:52:35,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:52:35,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153193114] [2022-11-21 16:52:35,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:52:35,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 16:52:35,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:52:35,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 16:52:35,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:52:35,079 INFO L87 Difference]: Start difference. First operand 753 states and 1017 transitions. Second operand has 14 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 7 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 5 states have call predecessors, (20), 6 states have call successors, (20) [2022-11-21 16:52:36,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:52:36,719 INFO L93 Difference]: Finished difference Result 825 states and 1126 transitions. [2022-11-21 16:52:36,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:52:36,720 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 7 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 5 states have call predecessors, (20), 6 states have call successors, (20) Word has length 133 [2022-11-21 16:52:36,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:52:36,724 INFO L225 Difference]: With dead ends: 825 [2022-11-21 16:52:36,724 INFO L226 Difference]: Without dead ends: 823 [2022-11-21 16:52:36,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2022-11-21 16:52:36,726 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 219 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:52:36,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 646 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-21 16:52:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-11-21 16:52:36,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 781. [2022-11-21 16:52:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 485 states have (on average 1.131958762886598) internal successors, (549), 500 states have internal predecessors, (549), 220 states have call successors, (220), 67 states have call predecessors, (220), 75 states have return successors, (286), 213 states have call predecessors, (286), 214 states have call successors, (286) [2022-11-21 16:52:36,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1055 transitions. [2022-11-21 16:52:36,917 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1055 transitions. Word has length 133 [2022-11-21 16:52:36,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:52:36,917 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1055 transitions. [2022-11-21 16:52:36,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 7 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 5 states have call predecessors, (20), 6 states have call successors, (20) [2022-11-21 16:52:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1055 transitions. [2022-11-21 16:52:36,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-21 16:52:36,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:52:36,922 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:52:36,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:52:36,922 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:52:36,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:52:36,923 INFO L85 PathProgramCache]: Analyzing trace with hash 714640318, now seen corresponding path program 1 times [2022-11-21 16:52:36,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:52:36,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320989969] [2022-11-21 16:52:36,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:36,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:52:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:52:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:52:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:52:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:52:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:52:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:52:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:52:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:52:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:52:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:52:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 16:52:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:52:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:52:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:52:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 16:52:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-21 16:52:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 40 proven. 11 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-21 16:52:38,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:52:38,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320989969] [2022-11-21 16:52:38,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320989969] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:52:38,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855985946] [2022-11-21 16:52:38,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:38,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:52:38,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:52:38,859 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:52:38,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 16:52:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:39,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 2801 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-21 16:52:39,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:52:39,663 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 13 treesize of output 9 [2022-11-21 16:52:39,668 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 13 treesize of output 9 [2022-11-21 16:52:40,162 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 17 treesize of output 13 [2022-11-21 16:52:40,168 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 17 treesize of output 13 [2022-11-21 16:52:40,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-21 16:52:40,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-21 16:52:40,285 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 19 treesize of output 7 [2022-11-21 16:52:40,288 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 19 treesize of output 7 [2022-11-21 16:52:40,403 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 91 proven. 8 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-21 16:52:40,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:52:40,937 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 30 treesize of output 24 [2022-11-21 16:52:40,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:52:40,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:52:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-21 16:52:40,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855985946] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:52:40,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:52:40,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 11] total 26 [2022-11-21 16:52:40,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144388202] [2022-11-21 16:52:40,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:52:40,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-21 16:52:40,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:52:40,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-21 16:52:40,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-11-21 16:52:40,971 INFO L87 Difference]: Start difference. First operand 781 states and 1055 transitions. Second operand has 26 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 11 states have call successors, (54), 7 states have call predecessors, (54), 9 states have return successors, (53), 9 states have call predecessors, (53), 11 states have call successors, (53) [2022-11-21 16:52:50,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:52:50,706 INFO L93 Difference]: Finished difference Result 2034 states and 2888 transitions. [2022-11-21 16:52:50,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-21 16:52:50,707 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 11 states have call successors, (54), 7 states have call predecessors, (54), 9 states have return successors, (53), 9 states have call predecessors, (53), 11 states have call successors, (53) Word has length 145 [2022-11-21 16:52:50,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:52:50,722 INFO L225 Difference]: With dead ends: 2034 [2022-11-21 16:52:50,722 INFO L226 Difference]: Without dead ends: 1673 [2022-11-21 16:52:50,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 313 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=480, Invalid=3680, Unknown=0, NotChecked=0, Total=4160 [2022-11-21 16:52:50,726 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 554 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 5885 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 6490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 5885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:52:50,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 1656 Invalid, 6490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 5885 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-21 16:52:50,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2022-11-21 16:52:50,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1166. [2022-11-21 16:52:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 723 states have (on average 1.1244813278008299) internal successors, (813), 740 states have internal predecessors, (813), 332 states have call successors, (332), 102 states have call predecessors, (332), 110 states have return successors, (437), 323 states have call predecessors, (437), 324 states have call successors, (437) [2022-11-21 16:52:50,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1582 transitions. [2022-11-21 16:52:50,985 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1582 transitions. Word has length 145 [2022-11-21 16:52:50,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:52:50,985 INFO L495 AbstractCegarLoop]: Abstraction has 1166 states and 1582 transitions. [2022-11-21 16:52:50,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 11 states have call successors, (54), 7 states have call predecessors, (54), 9 states have return successors, (53), 9 states have call predecessors, (53), 11 states have call successors, (53) [2022-11-21 16:52:50,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1582 transitions. [2022-11-21 16:52:50,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-21 16:52:50,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:52:50,992 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:52:51,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-21 16:52:51,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 16:52:51,202 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:52:51,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:52:51,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1379928345, now seen corresponding path program 1 times [2022-11-21 16:52:51,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:52:51,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621485211] [2022-11-21 16:52:51,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:51,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:52:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:52:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:52:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:52:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:52:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:52:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:52:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:52:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:52:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:52:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:52:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:52:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:52:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:52:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:52:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:52:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-21 16:52:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 16:52:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:52,470 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-21 16:52:52,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:52:52,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621485211] [2022-11-21 16:52:52,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621485211] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:52:52,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408267030] [2022-11-21 16:52:52,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:52:52,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:52:52,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:52:52,472 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:52:52,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-21 16:52:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:52:53,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 2759 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-21 16:52:53,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:52:53,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 16:52:53,601 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-21 16:52:53,601 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 1 case distinctions, treesize of input 42 treesize of output 36 [2022-11-21 16:52:54,733 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 16:52:54,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 19 [2022-11-21 16:52:54,795 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 67 proven. 40 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-21 16:52:54,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:52:55,630 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 29 treesize of output 17 [2022-11-21 16:52:55,820 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-21 16:52:55,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 25 [2022-11-21 16:52:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-21 16:52:55,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408267030] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:52:55,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:52:55,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 14] total 28 [2022-11-21 16:52:55,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600325412] [2022-11-21 16:52:55,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:52:55,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-21 16:52:55,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:52:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-21 16:52:55,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-11-21 16:52:55,868 INFO L87 Difference]: Start difference. First operand 1166 states and 1582 transitions. Second operand has 28 states, 26 states have (on average 4.846153846153846) internal successors, (126), 26 states have internal predecessors, (126), 13 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (44), 11 states have call predecessors, (44), 13 states have call successors, (44) [2022-11-21 16:52:58,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:53:00,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:53:03,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:53:05,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:53:07,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:53:09,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:53:11,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:53:14,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:53:16,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 16:53:21,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:53:21,395 INFO L93 Difference]: Finished difference Result 2212 states and 2878 transitions. [2022-11-21 16:53:21,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-21 16:53:21,396 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 4.846153846153846) internal successors, (126), 26 states have internal predecessors, (126), 13 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (44), 11 states have call predecessors, (44), 13 states have call successors, (44) Word has length 139 [2022-11-21 16:53:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:53:21,404 INFO L225 Difference]: With dead ends: 2212 [2022-11-21 16:53:21,405 INFO L226 Difference]: Without dead ends: 1553 [2022-11-21 16:53:21,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 288 SyntacticMatches, 18 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=428, Invalid=2758, Unknown=6, NotChecked=0, Total=3192 [2022-11-21 16:53:21,409 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 623 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 3014 mSolverCounterSat, 530 mSolverCounterUnsat, 52 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 3596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 3014 IncrementalHoareTripleChecker+Invalid, 52 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:53:21,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 794 Invalid, 3596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 3014 Invalid, 52 Unknown, 0 Unchecked, 23.3s Time] [2022-11-21 16:53:21,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2022-11-21 16:53:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1302. [2022-11-21 16:53:21,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 827 states have (on average 1.1233373639661426) internal successors, (929), 845 states have internal predecessors, (929), 350 states have call successors, (350), 115 states have call predecessors, (350), 124 states have return successors, (436), 341 states have call predecessors, (436), 344 states have call successors, (436) [2022-11-21 16:53:21,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1715 transitions. [2022-11-21 16:53:21,797 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1715 transitions. Word has length 139 [2022-11-21 16:53:21,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:53:21,798 INFO L495 AbstractCegarLoop]: Abstraction has 1302 states and 1715 transitions. [2022-11-21 16:53:21,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 4.846153846153846) internal successors, (126), 26 states have internal predecessors, (126), 13 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (44), 11 states have call predecessors, (44), 13 states have call successors, (44) [2022-11-21 16:53:21,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1715 transitions. [2022-11-21 16:53:21,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-21 16:53:21,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:53:21,803 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:53:21,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-21 16:53:22,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 16:53:22,004 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:53:22,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:53:22,005 INFO L85 PathProgramCache]: Analyzing trace with hash -760523234, now seen corresponding path program 2 times [2022-11-21 16:53:22,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:53:22,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035988889] [2022-11-21 16:53:22,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:53:22,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:53:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:53:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:53:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:53:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:53:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:53:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:53:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:53:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 16:53:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:53:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:53:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 16:53:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:25,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 16:53:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:26,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:53:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:26,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:53:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:26,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:26,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:53:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:53:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 16:53:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:26,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-21 16:53:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:26,052 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 18 proven. 19 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-21 16:53:26,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:53:26,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035988889] [2022-11-21 16:53:26,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035988889] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:53:26,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116102614] [2022-11-21 16:53:26,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:53:26,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:53:26,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:53:26,054 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:53:26,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-21 16:53:26,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 16:53:26,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:53:26,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 2801 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-21 16:53:26,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:53:26,878 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 10 treesize of output 8 [2022-11-21 16:53:27,009 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 13 treesize of output 9 [2022-11-21 16:53:27,013 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 13 treesize of output 9 [2022-11-21 16:53:27,713 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 16 treesize of output 18 [2022-11-21 16:53:27,721 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 16 treesize of output 18 [2022-11-21 16:53:27,782 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 15 treesize of output 7 [2022-11-21 16:53:27,785 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 15 treesize of output 7 [2022-11-21 16:53:27,943 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 95 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-21 16:53:27,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:53:28,205 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset| 8))) (and (forall ((v_ArrVal_1584 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base| v_ArrVal_1584) |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base|) .cse0) 0)) (forall ((v_ArrVal_1586 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base| v_ArrVal_1586) |c_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base|) .cse0) 0)))) is different from false [2022-11-21 16:53:28,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116102614] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:53:28,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:53:28,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 12] total 32 [2022-11-21 16:53:28,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611675476] [2022-11-21 16:53:28,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:53:28,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-21 16:53:28,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:53:28,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-21 16:53:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1030, Unknown=1, NotChecked=64, Total=1190 [2022-11-21 16:53:28,218 INFO L87 Difference]: Start difference. First operand 1302 states and 1715 transitions. Second operand has 32 states, 29 states have (on average 4.137931034482759) internal successors, (120), 28 states have internal predecessors, (120), 13 states have call successors, (41), 5 states have call predecessors, (41), 9 states have return successors, (40), 12 states have call predecessors, (40), 13 states have call successors, (40) [2022-11-21 16:53:36,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:53:36,766 INFO L93 Difference]: Finished difference Result 2058 states and 2702 transitions. [2022-11-21 16:53:36,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-21 16:53:36,767 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 4.137931034482759) internal successors, (120), 28 states have internal predecessors, (120), 13 states have call successors, (41), 5 states have call predecessors, (41), 9 states have return successors, (40), 12 states have call predecessors, (40), 13 states have call successors, (40) Word has length 145 [2022-11-21 16:53:36,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:53:36,775 INFO L225 Difference]: With dead ends: 2058 [2022-11-21 16:53:36,776 INFO L226 Difference]: Without dead ends: 1626 [2022-11-21 16:53:36,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 264 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=411, Invalid=3624, Unknown=1, NotChecked=124, Total=4160 [2022-11-21 16:53:36,780 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 584 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 5631 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 6158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 5631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:53:36,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1140 Invalid, 6158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 5631 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-21 16:53:36,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-11-21 16:53:37,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1483. [2022-11-21 16:53:37,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 950 states have (on average 1.1221052631578947) internal successors, (1066), 966 states have internal predecessors, (1066), 390 states have call successors, (390), 135 states have call predecessors, (390), 142 states have return successors, (480), 381 states have call predecessors, (480), 382 states have call successors, (480) [2022-11-21 16:53:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1936 transitions. [2022-11-21 16:53:37,260 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1936 transitions. Word has length 145 [2022-11-21 16:53:37,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:53:37,261 INFO L495 AbstractCegarLoop]: Abstraction has 1483 states and 1936 transitions. [2022-11-21 16:53:37,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 4.137931034482759) internal successors, (120), 28 states have internal predecessors, (120), 13 states have call successors, (41), 5 states have call predecessors, (41), 9 states have return successors, (40), 12 states have call predecessors, (40), 13 states have call successors, (40) [2022-11-21 16:53:37,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1936 transitions. [2022-11-21 16:53:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-21 16:53:37,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:53:37,267 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:53:37,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-21 16:53:37,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-21 16:53:37,479 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:53:37,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:53:37,480 INFO L85 PathProgramCache]: Analyzing trace with hash 15876341, now seen corresponding path program 1 times [2022-11-21 16:53:37,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:53:37,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024379635] [2022-11-21 16:53:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:53:37,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:53:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:53:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:53:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:53:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:53:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:53:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:53:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:53:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:53:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:53:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:53:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:53:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:53:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:53:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:53:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 16:53:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:53:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 16:53:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-21 16:53:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 16:53:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-21 16:53:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-21 16:53:39,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:53:39,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024379635] [2022-11-21 16:53:39,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024379635] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:53:39,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359708969] [2022-11-21 16:53:39,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:53:39,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:53:39,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:53:39,584 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:53:39,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ff9256-61b8-470d-96ef-6c362f4636d6/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-21 16:53:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:40,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 124 conjunts are in the unsatisfiable core [2022-11-21 16:53:40,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:53:40,477 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 13 treesize of output 9 [2022-11-21 16:53:40,483 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 13 treesize of output 9 [2022-11-21 16:53:41,074 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 29 treesize of output 17 [2022-11-21 16:53:41,078 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 13 treesize of output 9 [2022-11-21 16:53:41,088 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 29 treesize of output 17 [2022-11-21 16:53:41,091 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 13 treesize of output 9 [2022-11-21 16:53:46,278 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 37 treesize of output 29 [2022-11-21 16:53:46,394 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-21 16:53:46,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2022-11-21 16:53:46,399 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-21 16:53:46,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2022-11-21 16:53:46,553 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 69 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-21 16:53:46,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:56:14,665 WARN L233 SmtUtils]: Spent 2.25m on a formula simplification that was a NOOP. DAG size: 123 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 16:56:19,464 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse6 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse39 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse39) 0) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse39) 0))))) (.cse8 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|)) 0))) (.cse5 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse38 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse38) 0) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse38) 0))))) (.cse1 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse37 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse37) 0)) (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse37) 0) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse37) 0)) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))))))) (.cse12 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse36 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse36) 0) (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse36) 0))))) (.cse19 (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse34 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse34) 0) (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse34) 0) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616)))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse35 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse35) 0) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse35) 0) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616)))))))) (.cse3 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse33 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse33) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse33) 0)) (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse33) 0))))) (.cse4 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse32 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse32) 0)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse32) 0)) (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse32) 0) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))))))) (.cse0 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse31 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse31) 0) (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse31) 0))))) (.cse20 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse30 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse30) 0)) (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse30) 0) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse30) 0)))))) (.cse2 (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse28 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse28) 0) (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse28) 0) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616)))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse29 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse29) 0) (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse29) 0) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616)))))))) (.cse17 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse27 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse27) 0)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse27) 0)) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))))))) (.cse13 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse26 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse26) 0)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse26) 0)) (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse26) 0)) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))) (not (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse26) 0)))))) (.cse15 (not (< 0 (mod |c_save_byte_from_array_#in~size#1| 18446744073709551616)))) (.cse16 (and (= |c_save_byte_from_array_#in~array#1.base| 0) (= |c_save_byte_from_array_#in~array#1.offset| 0))) (.cse21 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse25 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse25) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse25) 0)))))) (.cse18 (< |c_save_byte_from_array_#in~storage#1.base| 1)) (.cse7 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse24 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse24) 0)) (< 0 (mod (select (select |c_old(#memory_int)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse24) 0)) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))))))) (.cse22 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|)) 0)))) (and (or .cse0 .cse1) (or .cse2 .cse3) (or .cse4 .cse5) (or .cse4 .cse6) (or .cse7 .cse8) (or (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse9 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse9) 0) (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse9) 0)) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))) (not (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse9) 0))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (let ((.cse10 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|))) (or (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse10) 0) (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse10) 0)) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))) (not (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) .cse10) 0)))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse11 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse11) 0)) (not (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse11) 0)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse11) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse11) 0)))))) (or .cse12 .cse1) (or .cse6 .cse1) (or .cse13 (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse14 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse14) 0)) (not (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse14) 0)) (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse14) 0))))) (or .cse15 .cse16 .cse8 .cse17 .cse18) (or .cse19 .cse20) (or .cse5 .cse1) (or .cse4 .cse12) (or .cse19 .cse3) (or .cse4 .cse0) (or .cse20 .cse2) (or .cse21 (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (or (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|)) 0) (< 0 (mod (select (select |c_old(#memory_int)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616)) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (or (< 0 (mod (select (select |c_old(#memory_int)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616)) (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|)) 0) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))))))) (or .cse15 .cse16 .cse22 .cse17 .cse18) (or (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66| Int)) (let ((.cse23 (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.offset_BEFORE_CALL_64|))) (or (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse23) 0) (not (= (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse23) 0)) (not (= (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#rhs~0#1.base_BEFORE_CALL_66|) .cse23) 0))))) .cse13) (or .cse15 .cse16 .cse21 (and (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (or (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|)) 0) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616))))) (forall ((|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99| Int) (|v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95| Int)) (or (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) (+ 8 |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|)) 0) (not (< 0 (mod (select (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.base_BEFORE_CALL_95|) |v_ULTIMATE.start_aws_byte_cursor_eq_harness_~#lhs~0#1.offset_BEFORE_CALL_99|) 18446744073709551616)))))) .cse18) (or .cse7 .cse22))) is different from false [2022-11-21 17:00:21,575 WARN L233 SmtUtils]: Spent 4.00m on a formula simplification that was a NOOP. DAG size: 162 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)