./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 489929a5e16ca7b6c37431f1402d7909a8c53c05fad96c5d5ea6a1c3ea89ee37 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:46,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:46,913 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:08:46,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:46,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:46,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:46,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:46,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:46,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:46,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:46,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:46,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:46,970 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:46,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:46,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:46,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:46,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:46,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:46,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:46,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:46,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:46,975 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:46,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:46,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:46,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:46,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:46,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:46,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:46,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:46,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:46,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:46,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:46,981 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:46,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:46,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:46,982 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:46,982 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 489929a5e16ca7b6c37431f1402d7909a8c53c05fad96c5d5ea6a1c3ea89ee37 [2023-11-12 02:08:47,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:47,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:47,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:47,321 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:47,322 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:47,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness_negated.i [2023-11-12 02:08:50,556 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:08:51,230 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:08:51,230 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness_negated.i [2023-11-12 02:08:51,282 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/data/7c73c45b9/a8e0b8aa250a4bda8cae60632216579e/FLAG39906fa23 [2023-11-12 02:08:51,300 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/data/7c73c45b9/a8e0b8aa250a4bda8cae60632216579e [2023-11-12 02:08:51,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:08:51,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:08:51,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:51,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:08:51,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:08:51,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:51" (1/1) ... [2023-11-12 02:08:51,325 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa7afbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:51, skipping insertion in model container [2023-11-12 02:08:51,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:51" (1/1) ... [2023-11-12 02:08:51,468 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:08:51,825 WARN L240 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_c0d00953-62d9-43a4-b922-63e565d77092/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness_negated.i[4492,4505] [2023-11-12 02:08:51,835 WARN L240 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_c0d00953-62d9-43a4-b922-63e565d77092/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness_negated.i[4552,4565] [2023-11-12 02:08:53,226 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,228 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,228 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,230 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,231 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,247 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,248 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,251 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,252 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,254 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,255 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,256 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,257 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:53,806 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:08:53,814 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:08:53,815 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:08:53,820 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:08:53,823 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:08:53,826 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:08:53,827 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:08:53,829 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:08:53,830 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:08:53,845 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:08:54,580 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,581 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,634 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,635 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,642 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,643 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,666 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,667 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,668 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,669 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,669 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,670 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,671 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:54,790 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:08:54,814 WARN L240 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_c0d00953-62d9-43a4-b922-63e565d77092/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness_negated.i[4492,4505] [2023-11-12 02:08:54,815 WARN L240 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_c0d00953-62d9-43a4-b922-63e565d77092/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness_negated.i[4552,4565] [2023-11-12 02:08:54,868 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,869 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,869 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,869 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,870 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,880 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,880 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,883 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,884 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,885 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,885 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,886 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,886 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:54,923 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 02:08:54,924 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 02:08:54,924 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 02:08:54,925 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 02:08:54,927 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 02:08:54,927 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 02:08:54,931 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 02:08:54,932 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 02:08:54,933 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 02:08:54,934 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 02:08:54,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7544-7555] [2023-11-12 02:08:55,173 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,173 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,186 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,187 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,191 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,192 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,210 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,211 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,212 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,212 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,213 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,214 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,214 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 02:08:55,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:55,553 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,553 WARN L672 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,553 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,553 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,553 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,554 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,554 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,554 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,554 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,554 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,554 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,555 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,555 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,555 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,555 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,555 WARN L672 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,555 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,556 WARN L672 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:55,563 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:08:55,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55 WrapperNode [2023-11-12 02:08:55,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:55,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:55,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:08:55,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:08:55,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:55,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:55,809 INFO L138 Inliner]: procedures = 773, calls = 2490, calls flagged for inlining = 70, calls inlined = 25, statements flattened = 1457 [2023-11-12 02:08:55,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:55,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:08:55,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:08:55,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:08:55,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:55,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:55,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:55,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:55,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:55,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:55,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:56,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:56,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:08:56,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:08:56,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:08:56,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:08:56,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (1/1) ... [2023-11-12 02:08:56,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:56,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:56,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:08:56,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:08:56,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 02:08:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 02:08:56,146 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 02:08:56,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-12 02:08:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:08:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 02:08:56,147 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 02:08:56,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:08:56,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:08:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-12 02:08:56,148 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-12 02:08:56,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:08:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:08:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:08:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2023-11-12 02:08:56,149 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2023-11-12 02:08:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:08:56,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:08:56,149 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 02:08:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 02:08:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 02:08:56,150 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 02:08:56,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:08:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-12 02:08:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-12 02:08:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:08:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-12 02:08:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-12 02:08:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:08:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 02:08:56,153 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 02:08:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:08:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2023-11-12 02:08:56,153 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2023-11-12 02:08:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-12 02:08:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-12 02:08:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2023-11-12 02:08:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2023-11-12 02:08:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2023-11-12 02:08:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2023-11-12 02:08:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-11-12 02:08:56,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-11-12 02:08:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:08:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-12 02:08:56,155 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-12 02:08:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:08:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2023-11-12 02:08:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2023-11-12 02:08:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-12 02:08:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-12 02:08:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-12 02:08:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:08:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:08:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-11-12 02:08:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-11-12 02:08:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2023-11-12 02:08:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2023-11-12 02:08:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2023-11-12 02:08:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2023-11-12 02:08:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:08:56,159 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:08:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-12 02:08:56,160 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-12 02:08:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:08:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 02:08:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 02:08:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 02:08:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 02:08:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-12 02:08:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-12 02:08:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2023-11-12 02:08:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2023-11-12 02:08:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:08:56,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:08:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:08:56,678 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:08:56,681 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:08:57,036 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2023-11-12 02:08:57,074 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-11-12 02:08:58,200 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2023-11-12 02:08:58,200 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !true; [2023-11-12 02:08:59,924 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:08:59,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:08:59,936 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-12 02:08:59,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:59 BoogieIcfgContainer [2023-11-12 02:08:59,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:08:59,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:08:59,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:08:59,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:08:59,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:08:51" (1/3) ... [2023-11-12 02:08:59,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf42b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:59, skipping insertion in model container [2023-11-12 02:08:59,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:55" (2/3) ... [2023-11-12 02:08:59,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf42b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:59, skipping insertion in model container [2023-11-12 02:08:59,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:59" (3/3) ... [2023-11-12 02:08:59,948 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness_negated.i [2023-11-12 02:08:59,969 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:08:59,969 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:09:00,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:09:00,058 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=LoopHeads, 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;@4d6fd5bd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:09:00,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:09:00,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 283 states have (on average 1.325088339222615) internal successors, (375), 280 states have internal predecessors, (375), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-11-12 02:09:00,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 02:09:00,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:00,092 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-12 02:09:00,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:00,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:00,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2028218122, now seen corresponding path program 1 times [2023-11-12 02:09:00,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:00,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223743507] [2023-11-12 02:09:00,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:00,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:00,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:00,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223743507] [2023-11-12 02:09:00,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:09:00,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917703851] [2023-11-12 02:09:00,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:00,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:00,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:00,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:00,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:09:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:01,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 2608 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:09:01,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-12 02:09:01,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:09:01,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917703851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:01,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:01,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:09:01,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282065014] [2023-11-12 02:09:01,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:01,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:09:01,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:01,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:09:01,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:09:01,889 INFO L87 Difference]: Start difference. First operand has 396 states, 283 states have (on average 1.325088339222615) internal successors, (375), 280 states have internal predecessors, (375), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 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 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 02:09:02,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:02,032 INFO L93 Difference]: Finished difference Result 786 states and 1142 transitions. [2023-11-12 02:09:02,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:09:02,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2023-11-12 02:09:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:02,051 INFO L225 Difference]: With dead ends: 786 [2023-11-12 02:09:02,052 INFO L226 Difference]: Without dead ends: 390 [2023-11-12 02:09:02,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:09:02,066 INFO L413 NwaCegarLoop]: 535 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, 535 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 [2023-11-12 02:09:02,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:02,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-12 02:09:02,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2023-11-12 02:09:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 274 states have (on average 1.3102189781021898) internal successors, (359), 275 states have internal predecessors, (359), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-12 02:09:02,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 530 transitions. [2023-11-12 02:09:02,210 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 530 transitions. Word has length 134 [2023-11-12 02:09:02,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:02,212 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 530 transitions. [2023-11-12 02:09:02,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 02:09:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 530 transitions. [2023-11-12 02:09:02,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 02:09:02,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:02,229 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-12 02:09:02,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:02,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:09:02,430 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:02,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:02,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1114119620, now seen corresponding path program 1 times [2023-11-12 02:09:02,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:02,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602785472] [2023-11-12 02:09:02,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:02,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:02,677 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:09:02,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392430073] [2023-11-12 02:09:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:02,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:02,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:02,685 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:02,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:09:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:03,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 2608 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:09:03,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:03,600 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-12 02:09:03,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:09:03,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:03,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602785472] [2023-11-12 02:09:03,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:09:03,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392430073] [2023-11-12 02:09:03,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392430073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:03,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:03,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:09:03,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829070787] [2023-11-12 02:09:03,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:03,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:09:03,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:03,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:09:03,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:09:03,605 INFO L87 Difference]: Start difference. First operand 390 states and 530 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 02:09:03,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:03,692 INFO L93 Difference]: Finished difference Result 776 states and 1058 transitions. [2023-11-12 02:09:03,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:09:03,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2023-11-12 02:09:03,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:03,700 INFO L225 Difference]: With dead ends: 776 [2023-11-12 02:09:03,700 INFO L226 Difference]: Without dead ends: 395 [2023-11-12 02:09:03,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:09:03,706 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 2 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:03,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2104 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-11-12 02:09:03,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2023-11-12 02:09:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 278 states have (on average 1.3057553956834533) internal successors, (363), 279 states have internal predecessors, (363), 86 states have call successors, (86), 29 states have call predecessors, (86), 30 states have return successors, (89), 86 states have call predecessors, (89), 85 states have call successors, (89) [2023-11-12 02:09:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 538 transitions. [2023-11-12 02:09:03,744 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 538 transitions. Word has length 134 [2023-11-12 02:09:03,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:03,745 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 538 transitions. [2023-11-12 02:09:03,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 02:09:03,745 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 538 transitions. [2023-11-12 02:09:03,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-12 02:09:03,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:03,748 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:03,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:03,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:03,958 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:03,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:03,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2106688675, now seen corresponding path program 1 times [2023-11-12 02:09:03,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:03,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490283452] [2023-11-12 02:09:03,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:03,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:09:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:09:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:09:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:09:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:09:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:09:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:09:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:09:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-12 02:09:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:09:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-12 02:09:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:09:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:09:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:09:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:09:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-12 02:09:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-12 02:09:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-12 02:09:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:06,764 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-12 02:09:06,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:06,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490283452] [2023-11-12 02:09:06,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490283452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:06,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:06,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-12 02:09:06,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805804633] [2023-11-12 02:09:06,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:06,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:09:06,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:06,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:09:06,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:09:06,767 INFO L87 Difference]: Start difference. First operand 395 states and 538 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-12 02:09:17,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:09:19,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:19,052 INFO L93 Difference]: Finished difference Result 827 states and 1130 transitions. [2023-11-12 02:09:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-12 02:09:19,053 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 140 [2023-11-12 02:09:19,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:19,058 INFO L225 Difference]: With dead ends: 827 [2023-11-12 02:09:19,058 INFO L226 Difference]: Without dead ends: 453 [2023-11-12 02:09:19,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2023-11-12 02:09:19,061 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 477 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 2838 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 3037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 2838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:19,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 2156 Invalid, 3037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [199 Valid, 2838 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2023-11-12 02:09:19,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-11-12 02:09:19,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 400. [2023-11-12 02:09:19,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 282 states have (on average 1.3049645390070923) internal successors, (368), 284 states have internal predecessors, (368), 86 states have call successors, (86), 29 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2023-11-12 02:09:19,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 544 transitions. [2023-11-12 02:09:19,102 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 544 transitions. Word has length 140 [2023-11-12 02:09:19,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:19,103 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 544 transitions. [2023-11-12 02:09:19,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-12 02:09:19,104 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 544 transitions. [2023-11-12 02:09:19,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-12 02:09:19,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:19,106 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:19,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:09:19,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:19,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:19,107 INFO L85 PathProgramCache]: Analyzing trace with hash 277236063, now seen corresponding path program 1 times [2023-11-12 02:09:19,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:19,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387335581] [2023-11-12 02:09:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:09:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:09:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:09:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:09:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:09:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:09:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:09:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:09:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-12 02:09:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:09:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-12 02:09:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:09:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:09:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:09:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:09:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-12 02:09:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-12 02:09:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-12 02:09:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,258 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-12 02:09:20,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:20,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387335581] [2023-11-12 02:09:20,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387335581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:20,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:20,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:09:20,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233898193] [2023-11-12 02:09:20,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:20,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:09:20,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:20,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:09:20,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:09:20,263 INFO L87 Difference]: Start difference. First operand 400 states and 544 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-12 02:09:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:27,169 INFO L93 Difference]: Finished difference Result 834 states and 1138 transitions. [2023-11-12 02:09:27,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:09:27,170 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2023-11-12 02:09:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:27,174 INFO L225 Difference]: With dead ends: 834 [2023-11-12 02:09:27,175 INFO L226 Difference]: Without dead ends: 448 [2023-11-12 02:09:27,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:09:27,178 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 388 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:27,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1329 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-11-12 02:09:27,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-12 02:09:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 398. [2023-11-12 02:09:27,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 280 states have (on average 1.3) internal successors, (364), 282 states have internal predecessors, (364), 86 states have call successors, (86), 29 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2023-11-12 02:09:27,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 540 transitions. [2023-11-12 02:09:27,217 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 540 transitions. Word has length 140 [2023-11-12 02:09:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:27,218 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 540 transitions. [2023-11-12 02:09:27,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-12 02:09:27,218 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 540 transitions. [2023-11-12 02:09:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-12 02:09:27,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:27,221 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:27,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:09:27,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:09:27,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:27,222 INFO L85 PathProgramCache]: Analyzing trace with hash -201652999, now seen corresponding path program 1 times [2023-11-12 02:09:27,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:27,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574148924] [2023-11-12 02:09:27,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:27,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:09:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:09:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:09:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:09:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:09:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:09:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:09:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:09:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:09:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:09:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:09:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:09:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-12 02:09:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-12 02:09:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-12 02:09:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:09:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-12 02:09:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:09:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-12 02:09:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-12 02:09:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-12 02:09:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:28,791 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-12 02:09:28,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:28,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574148924] [2023-11-12 02:09:28,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574148924] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:28,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475437321] [2023-11-12 02:09:28,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:28,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:28,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:28,797 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:28,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0d00953-62d9-43a4-b922-63e565d77092/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:09:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:29,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 2636 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-12 02:09:29,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:31,938 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$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 [2023-11-12 02:09:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-12 02:09:36,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:09:36,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475437321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:36,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:09:36,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-11-12 02:09:36,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074947575] [2023-11-12 02:09:36,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:36,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:09:36,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:36,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:09:36,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=175, Unknown=3, NotChecked=26, Total=240 [2023-11-12 02:09:36,130 INFO L87 Difference]: Start difference. First operand 398 states and 540 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-12 02:09:38,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:09:42,344 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]