./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ --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 a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 --- 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-dbf71c6-m [2022-10-17 10:38:34,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:38:34,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:38:34,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:38:34,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:38:34,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:38:34,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:38:34,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:38:34,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:38:34,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:38:34,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:38:34,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:38:34,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:38:34,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:38:34,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:38:34,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:38:34,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:38:34,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:38:34,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:38:34,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:38:34,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:38:34,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:38:34,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:38:34,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:38:34,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:38:34,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:38:34,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:38:34,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:38:34,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:38:34,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:38:34,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:38:34,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:38:34,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:38:34,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:38:34,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:38:34,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:38:34,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:38:34,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:38:34,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:38:34,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:38:34,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:38:34,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:38:34,542 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:38:34,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:38:34,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:38:34,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:38:34,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:38:34,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:38:34,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:38:34,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:38:34,546 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:38:34,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:38:34,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:38:34,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:38:34,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:38:34,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:38:34,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:38:34,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:38:34,547 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:38:34,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:38:34,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:38:34,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:38:34,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:38:34,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:34,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:38:34,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:38:34,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:38:34,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:38:34,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:38:34,550 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:38:34,550 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:38:34,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:38:34,551 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_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 [2022-10-17 10:38:34,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:38:34,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:38:34,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:38:34,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:38:34,827 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:38:34,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2022-10-17 10:38:34,920 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/data/37a601054/0e38226679d84d1e9ba8577ab1843f82/FLAGd1374d42e [2022-10-17 10:38:35,808 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:38:35,810 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2022-10-17 10:38:35,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/data/37a601054/0e38226679d84d1e9ba8577ab1843f82/FLAGd1374d42e [2022-10-17 10:38:36,254 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/data/37a601054/0e38226679d84d1e9ba8577ab1843f82 [2022-10-17 10:38:36,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:38:36,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:38:36,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:36,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:38:36,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:38:36,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:36" (1/1) ... [2022-10-17 10:38:36,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a61d52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:36, skipping insertion in model container [2022-10-17 10:38:36,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:36" (1/1) ... [2022-10-17 10:38:36,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:38:36,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:38:36,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2022-10-17 10:38:36,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2022-10-17 10:38:38,036 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,046 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,047 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,049 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,050 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,065 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,069 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,075 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,079 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,085 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,088 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,088 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,089 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:38,569 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-10-17 10:38:38,571 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-10-17 10:38:38,572 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-10-17 10:38:38,573 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-10-17 10:38:38,578 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-10-17 10:38:38,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-10-17 10:38:38,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-10-17 10:38:38,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-10-17 10:38:38,582 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-10-17 10:38:38,593 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-10-17 10:38:38,784 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-10-17 10:38:39,163 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,165 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,200 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,203 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,212 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,213 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,240 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,242 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,243 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,244 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,245 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,245 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,246 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:39,354 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:38:39,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2022-10-17 10:38:39,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2022-10-17 10:38:39,405 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,405 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,406 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,406 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,407 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,413 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,418 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,419 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,419 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,420 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,421 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,421 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,422 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,458 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-10-17 10:38:39,458 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-10-17 10:38:39,459 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-10-17 10:38:39,460 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-10-17 10:38:39,461 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-10-17 10:38:39,462 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-10-17 10:38:39,463 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-10-17 10:38:39,466 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-10-17 10:38:39,467 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-10-17 10:38:39,467 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-10-17 10:38:39,503 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-10-17 10:38:39,694 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,694 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,702 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,703 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,706 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,707 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,721 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,722 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,725 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,726 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,726 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,726 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,727 WARN L1550 CHandler]: Possible shadowing of function index [2022-10-17 10:38:39,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:39,992 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:38:39,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39 WrapperNode [2022-10-17 10:38:39,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:39,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:39,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:38:39,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:38:40,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,215 INFO L138 Inliner]: procedures = 775, calls = 2489, calls flagged for inlining = 67, calls inlined = 21, statements flattened = 1294 [2022-10-17 10:38:40,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:40,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:38:40,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:38:40,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:38:40,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,322 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:38:40,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:38:40,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:38:40,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:38:40,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (1/1) ... [2022-10-17 10:38:40,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:40,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:40,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:38:40,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:38:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-17 10:38:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-10-17 10:38:40,461 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-10-17 10:38:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:38:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-10-17 10:38:40,462 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-10-17 10:38:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 10:38:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 10:38:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_create [2022-10-17 10:38:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_create [2022-10-17 10:38:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-10-17 10:38:40,464 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-10-17 10:38:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:38:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:38:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:38:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2022-10-17 10:38:40,465 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2022-10-17 10:38:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:38:40,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:38:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-10-17 10:38:40,466 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-10-17 10:38:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-10-17 10:38:40,466 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-10-17 10:38:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-10-17 10:38:40,467 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-10-17 10:38:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:38:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-10-17 10:38:40,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-10-17 10:38:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:38:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-10-17 10:38:40,468 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-10-17 10:38:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:38:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2022-10-17 10:38:40,469 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2022-10-17 10:38:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-10-17 10:38:40,469 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-10-17 10:38:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2022-10-17 10:38:40,470 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2022-10-17 10:38:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2022-10-17 10:38:40,470 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2022-10-17 10:38:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2022-10-17 10:38:40,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2022-10-17 10:38:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:38:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-10-17 10:38:40,475 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-10-17 10:38:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-10-17 10:38:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2022-10-17 10:38:40,476 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2022-10-17 10:38:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-17 10:38:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-10-17 10:38:40,477 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-10-17 10:38:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2022-10-17 10:38:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2022-10-17 10:38:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2022-10-17 10:38:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2022-10-17 10:38:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2022-10-17 10:38:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2022-10-17 10:38:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:38:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:38:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-10-17 10:38:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-10-17 10:38:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:38:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-10-17 10:38:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-10-17 10:38:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-10-17 10:38:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-10-17 10:38:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-10-17 10:38:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-10-17 10:38:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2022-10-17 10:38:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2022-10-17 10:38:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2022-10-17 10:38:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2022-10-17 10:38:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:38:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:38:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:38:41,059 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:38:41,063 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:38:41,456 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-10-17 10:38:41,503 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2022-10-17 10:38:42,570 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2022-10-17 10:38:42,570 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !true; [2022-10-17 10:38:43,618 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:38:43,636 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:38:43,641 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-10-17 10:38:43,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:43 BoogieIcfgContainer [2022-10-17 10:38:43,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:38:43,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:38:43,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:38:43,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:38:43,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:38:36" (1/3) ... [2022-10-17 10:38:43,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6048d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:43, skipping insertion in model container [2022-10-17 10:38:43,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:39" (2/3) ... [2022-10-17 10:38:43,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6048d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:43, skipping insertion in model container [2022-10-17 10:38:43,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:43" (3/3) ... [2022-10-17 10:38:43,661 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness.i [2022-10-17 10:38:43,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:38:43,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:38:43,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:38:43,793 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;@70bf083c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:38:43,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:38:43,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 235 states have (on average 1.2723404255319148) internal successors, (299), 232 states have internal predecessors, (299), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-10-17 10:38:43,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-17 10:38:43,819 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:43,820 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:43,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:43,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:43,828 INFO L85 PathProgramCache]: Analyzing trace with hash -322226588, now seen corresponding path program 1 times [2022-10-17 10:38:43,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:43,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057014448] [2022-10-17 10:38:43,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:43,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:44,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:44,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057014448] [2022-10-17 10:38:44,562 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-17 10:38:44,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094615680] [2022-10-17 10:38:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:44,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:44,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:44,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:44,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:38:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:45,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 10:38:45,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-10-17 10:38:45,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:38:45,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094615680] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:45,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:45,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:38:45,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938200931] [2022-10-17 10:38:45,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:45,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:38:45,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:45,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:38:45,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:38:45,485 INFO L87 Difference]: Start difference. First operand has 349 states, 235 states have (on average 1.2723404255319148) internal successors, (299), 232 states have internal predecessors, (299), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-17 10:38:45,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:45,622 INFO L93 Difference]: Finished difference Result 692 states and 983 transitions. [2022-10-17 10:38:45,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:38:45,625 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2022-10-17 10:38:45,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:45,640 INFO L225 Difference]: With dead ends: 692 [2022-10-17 10:38:45,640 INFO L226 Difference]: Without dead ends: 341 [2022-10-17 10:38:45,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:38:45,653 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:45,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:45,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-10-17 10:38:45,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2022-10-17 10:38:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 224 states have (on average 1.2544642857142858) internal successors, (281), 226 states have internal predecessors, (281), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2022-10-17 10:38:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 451 transitions. [2022-10-17 10:38:45,735 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 451 transitions. Word has length 124 [2022-10-17 10:38:45,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:45,737 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 451 transitions. [2022-10-17 10:38:45,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-17 10:38:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 451 transitions. [2022-10-17 10:38:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-17 10:38:45,742 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:45,742 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:45,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:38:45,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-17 10:38:45,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:45,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:45,971 INFO L85 PathProgramCache]: Analyzing trace with hash -672164438, now seen corresponding path program 1 times [2022-10-17 10:38:45,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:45,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699277563] [2022-10-17 10:38:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:45,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:46,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 10:38:46,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057551160] [2022-10-17 10:38:46,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:46,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:46,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:46,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:46,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:38:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:47,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:38:47,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-10-17 10:38:47,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:38:47,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:47,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699277563] [2022-10-17 10:38:47,358 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 10:38:47,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057551160] [2022-10-17 10:38:47,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057551160] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:47,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:47,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:38:47,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199159992] [2022-10-17 10:38:47,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:47,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:38:47,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:38:47,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:38:47,363 INFO L87 Difference]: Start difference. First operand 341 states and 451 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-10-17 10:38:48,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:48,059 INFO L93 Difference]: Finished difference Result 668 states and 883 transitions. [2022-10-17 10:38:48,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:38:48,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 124 [2022-10-17 10:38:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:48,073 INFO L225 Difference]: With dead ends: 668 [2022-10-17 10:38:48,074 INFO L226 Difference]: Without dead ends: 341 [2022-10-17 10:38:48,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:38:48,084 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 466 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:48,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1182 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:38:48,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-10-17 10:38:48,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2022-10-17 10:38:48,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 224 states have (on average 1.25) internal successors, (280), 226 states have internal predecessors, (280), 86 states have call successors, (86), 30 states have call predecessors, (86), 30 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2022-10-17 10:38:48,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 450 transitions. [2022-10-17 10:38:48,155 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 450 transitions. Word has length 124 [2022-10-17 10:38:48,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:48,160 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 450 transitions. [2022-10-17 10:38:48,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-10-17 10:38:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 450 transitions. [2022-10-17 10:38:48,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-17 10:38:48,170 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:48,170 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:48,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:38:48,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:48,385 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:48,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:48,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1014015400, now seen corresponding path program 1 times [2022-10-17 10:38:48,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:48,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479668351] [2022-10-17 10:38:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:48,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:48,494 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-17 10:38:48,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [632770278] [2022-10-17 10:38:48,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:48,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:48,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:48,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:48,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:38:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:49,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 10:38:49,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-10-17 10:38:49,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:38:49,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:49,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479668351] [2022-10-17 10:38:49,230 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-17 10:38:49,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632770278] [2022-10-17 10:38:49,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632770278] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:49,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:49,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:38:49,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389584636] [2022-10-17 10:38:49,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:49,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:38:49,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:49,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:38:49,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:38:49,234 INFO L87 Difference]: Start difference. First operand 341 states and 450 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-17 10:38:49,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:49,361 INFO L93 Difference]: Finished difference Result 678 states and 899 transitions. [2022-10-17 10:38:49,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:38:49,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2022-10-17 10:38:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:49,368 INFO L225 Difference]: With dead ends: 678 [2022-10-17 10:38:49,368 INFO L226 Difference]: Without dead ends: 346 [2022-10-17 10:38:49,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:38:49,374 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 2 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:49,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1780 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:38:49,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-10-17 10:38:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-10-17 10:38:49,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 228 states have (on average 1.2456140350877194) internal successors, (284), 230 states have internal predecessors, (284), 86 states have call successors, (86), 30 states have call predecessors, (86), 31 states have return successors, (88), 85 states have call predecessors, (88), 84 states have call successors, (88) [2022-10-17 10:38:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 458 transitions. [2022-10-17 10:38:49,430 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 458 transitions. Word has length 124 [2022-10-17 10:38:49,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:49,432 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 458 transitions. [2022-10-17 10:38:49,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-17 10:38:49,432 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 458 transitions. [2022-10-17 10:38:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-17 10:38:49,436 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:49,437 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:49,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:38:49,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:49,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:49,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:49,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2006309942, now seen corresponding path program 1 times [2022-10-17 10:38:49,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:49,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235798126] [2022-10-17 10:38:49,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:49,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:38:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:38:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:38:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:51,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-17 10:38:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-17 10:38:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-17 10:38:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 10:38:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:38:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 10:38:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 10:38:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-17 10:38:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:38:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-17 10:38:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-17 10:38:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-17 10:38:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:52,661 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-10-17 10:38:52,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:52,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235798126] [2022-10-17 10:38:52,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235798126] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:52,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:52,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-17 10:38:52,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305764847] [2022-10-17 10:38:52,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:52,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-17 10:38:52,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:52,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-17 10:38:52,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:38:52,668 INFO L87 Difference]: Start difference. First operand 346 states and 458 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-10-17 10:38:58,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:58,216 INFO L93 Difference]: Finished difference Result 754 states and 1012 transitions. [2022-10-17 10:38:58,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:38:58,217 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 130 [2022-10-17 10:38:58,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:58,222 INFO L225 Difference]: With dead ends: 754 [2022-10-17 10:38:58,223 INFO L226 Difference]: Without dead ends: 429 [2022-10-17 10:38:58,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-10-17 10:38:58,226 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 400 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:58,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 2020 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 2428 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-10-17 10:38:58,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-10-17 10:38:58,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 349. [2022-10-17 10:38:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 230 states have (on average 1.2434782608695651) internal successors, (286), 233 states have internal predecessors, (286), 86 states have call successors, (86), 30 states have call predecessors, (86), 32 states have return successors, (89), 85 states have call predecessors, (89), 84 states have call successors, (89) [2022-10-17 10:38:58,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 461 transitions. [2022-10-17 10:38:58,269 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 461 transitions. Word has length 130 [2022-10-17 10:38:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:58,270 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 461 transitions. [2022-10-17 10:38:58,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 5 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-10-17 10:38:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 461 transitions. [2022-10-17 10:38:58,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-17 10:38:58,273 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:58,273 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:58,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:38:58,274 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:58,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:58,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1092762838, now seen corresponding path program 1 times [2022-10-17 10:38:58,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:58,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388029469] [2022-10-17 10:38:58,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:58,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:38:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:38:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:38:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-17 10:38:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:38:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-17 10:38:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-17 10:38:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 10:38:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-17 10:38:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 10:38:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:38:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-17 10:38:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-17 10:38:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-17 10:38:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-17 10:38:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-17 10:38:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-17 10:38:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:59,734 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-17 10:38:59,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:59,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388029469] [2022-10-17 10:38:59,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388029469] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:38:59,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293310761] [2022-10-17 10:38:59,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:59,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:59,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:59,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:59,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d635b92-8fd7-4a09-9b6d-fb9f68043434/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:39:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:39:00,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 2518 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-17 10:39:00,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:39:02,058 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true