./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya --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 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:26:58,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:26:58,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-28 20:26:58,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:26:58,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:26:58,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:26:58,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:26:58,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:26:58,543 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:26:58,544 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:26:58,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:26:58,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:26:58,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:26:58,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:26:58,547 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:26:58,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:26:58,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:26:58,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:26:58,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:26:58,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:26:58,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:26:58,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:26:58,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:26:58,552 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:26:58,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:26:58,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:26:58,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:26:58,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:26:58,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:26:58,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:26:58,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:26:58,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:26:58,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:26:58,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:26:58,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:26:58,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:26:58,556 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:26:58,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:26:58,556 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:26:58,557 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_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a [2023-11-28 20:26:58,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:26:58,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:26:58,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:26:58,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:26:58,778 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:26:58,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2023-11-28 20:27:01,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:27:01,895 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:27:01,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2023-11-28 20:27:01,924 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/data/31207d3df/79dbf6d4aee046f095cf73d6b619bdc9/FLAG7fec73445 [2023-11-28 20:27:01,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/data/31207d3df/79dbf6d4aee046f095cf73d6b619bdc9 [2023-11-28 20:27:01,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:27:01,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:27:01,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:27:01,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:27:01,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:27:01,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:27:01" (1/1) ... [2023-11-28 20:27:01,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c95960d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:01, skipping insertion in model container [2023-11-28 20:27:01,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:27:01" (1/1) ... [2023-11-28 20:27:02,039 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:27:02,244 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_c034ae5e-6abd-4ca6-b15c-d88348156e88/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2023-11-28 20:27:02,250 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_c034ae5e-6abd-4ca6-b15c-d88348156e88/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2023-11-28 20:27:02,992 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:02,993 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:02,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:02,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:02,996 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,011 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,012 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,014 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,015 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,017 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,018 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,019 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,019 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,361 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-28 20:27:03,362 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-28 20:27:03,364 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-28 20:27:03,365 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-28 20:27:03,367 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-28 20:27:03,368 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-28 20:27:03,369 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-28 20:27:03,370 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-28 20:27:03,371 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-28 20:27:03,372 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-28 20:27:03,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:27:03,545 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:27:03,560 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_c034ae5e-6abd-4ca6-b15c-d88348156e88/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2023-11-28 20:27:03,560 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_c034ae5e-6abd-4ca6-b15c-d88348156e88/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2023-11-28 20:27:03,608 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,609 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,609 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,610 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,611 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,622 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,623 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,624 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,625 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,626 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,627 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,628 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,628 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-28 20:27:03,671 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-28 20:27:03,672 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-28 20:27:03,673 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-28 20:27:03,674 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-28 20:27:03,675 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-28 20:27:03,675 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-28 20:27:03,676 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-28 20:27:03,676 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-28 20:27:03,677 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-28 20:27:03,677 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-28 20:27:03,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:27:03,864 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,864 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,864 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,864 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,864 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,864 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,865 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,865 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,865 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,865 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,865 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,865 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,866 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,866 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,866 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,866 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:27:03,873 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:27:03,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03 WrapperNode [2023-11-28 20:27:03,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:27:03,874 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:27:03,874 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:27:03,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:27:03,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:03,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:03,984 INFO L138 Inliner]: procedures = 678, calls = 1048, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 151 [2023-11-28 20:27:03,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:27:03,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:27:03,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:27:03,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:27:03,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:03,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:03,999 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:04,023 INFO L175 MemorySlicer]: Split 36 memory accesses to 3 slices as follows [2, 5, 29]. 81 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 10 writes are split as follows [0, 0, 10]. [2023-11-28 20:27:04,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:04,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:04,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:04,044 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:04,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:04,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:04,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:27:04,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:27:04,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:27:04,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:27:04,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (1/1) ... [2023-11-28 20:27:04,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:27:04,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:27:04,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:27:04,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:27:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:27:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 20:27:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 20:27:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-28 20:27:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-28 20:27:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:27:04,127 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2023-11-28 20:27:04,127 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2023-11-28 20:27:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:27:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 20:27:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 20:27:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-28 20:27:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2023-11-28 20:27:04,128 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2023-11-28 20:27:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:27:04,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:27:04,128 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 20:27:04,129 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 20:27:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:27:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 20:27:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 20:27:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-28 20:27:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-28 20:27:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-28 20:27:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-28 20:27:04,129 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-28 20:27:04,129 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-28 20:27:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-28 20:27:04,130 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-28 20:27:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:27:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:27:04,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 20:27:04,380 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:27:04,383 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:27:04,669 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:27:04,712 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:27:04,712 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-28 20:27:04,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:27:04 BoogieIcfgContainer [2023-11-28 20:27:04,713 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:27:04,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:27:04,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:27:04,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:27:04,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:27:01" (1/3) ... [2023-11-28 20:27:04,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672b63a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:27:04, skipping insertion in model container [2023-11-28 20:27:04,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:27:03" (2/3) ... [2023-11-28 20:27:04,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672b63a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:27:04, skipping insertion in model container [2023-11-28 20:27:04,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:27:04" (3/3) ... [2023-11-28 20:27:04,720 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_front_harness.i [2023-11-28 20:27:04,735 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:27:04,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:27:04,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:27:04,783 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;@10324a9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:27:04,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:27:04,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 57 states have internal predecessors, (75), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-28 20:27:04,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-28 20:27:04,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:04,797 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-28 20:27:04,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:27:04,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:04,803 INFO L85 PathProgramCache]: Analyzing trace with hash 407318891, now seen corresponding path program 1 times [2023-11-28 20:27:04,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:04,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269925415] [2023-11-28 20:27:04,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:04,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:27:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-28 20:27:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-28 20:27:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 20:27:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:27:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-28 20:27:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-28 20:27:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-28 20:27:05,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269925415] [2023-11-28 20:27:05,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269925415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:05,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:27:05,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:27:05,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067670159] [2023-11-28 20:27:05,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:05,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:27:05,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:05,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:27:05,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:27:05,343 INFO L87 Difference]: Start difference. First operand has 93 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 57 states have internal predecessors, (75), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-28 20:27:05,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:05,463 INFO L93 Difference]: Finished difference Result 184 states and 282 transitions. [2023-11-28 20:27:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:27:05,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 69 [2023-11-28 20:27:05,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:05,474 INFO L225 Difference]: With dead ends: 184 [2023-11-28 20:27:05,474 INFO L226 Difference]: Without dead ends: 95 [2023-11-28 20:27:05,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:27:05,481 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 3 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:05,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 340 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:27:05,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-28 20:27:05,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2023-11-28 20:27:05,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 59 states have internal predecessors, (73), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-28 20:27:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions. [2023-11-28 20:27:05,524 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 128 transitions. Word has length 69 [2023-11-28 20:27:05,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:05,525 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 128 transitions. [2023-11-28 20:27:05,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-28 20:27:05,525 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 128 transitions. [2023-11-28 20:27:05,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-28 20:27:05,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:05,529 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-28 20:27:05,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:27:05,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:27:05,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:05,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2022371047, now seen corresponding path program 1 times [2023-11-28 20:27:05,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:05,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909273514] [2023-11-28 20:27:05,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:05,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:27:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:05,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-28 20:27:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-28 20:27:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:06,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 20:27:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:06,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:27:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-28 20:27:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:06,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-28 20:27:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-28 20:27:06,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:06,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909273514] [2023-11-28 20:27:06,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909273514] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:27:06,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571381549] [2023-11-28 20:27:06,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:06,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:06,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:27:06,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:27:06,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:27:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:06,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-28 20:27:06,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-28 20:27:06,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:27:06,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571381549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:06,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:27:06,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 10 [2023-11-28 20:27:06,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825832277] [2023-11-28 20:27:06,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:06,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:27:06,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:06,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:27:06,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:27:06,416 INFO L87 Difference]: Start difference. First operand 94 states and 128 transitions. Second operand has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-28 20:27:06,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:06,596 INFO L93 Difference]: Finished difference Result 182 states and 249 transitions. [2023-11-28 20:27:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:27:06,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 69 [2023-11-28 20:27:06,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:06,600 INFO L225 Difference]: With dead ends: 182 [2023-11-28 20:27:06,600 INFO L226 Difference]: Without dead ends: 98 [2023-11-28 20:27:06,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:27:06,603 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 18 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:06,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 615 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:27:06,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-28 20:27:06,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2023-11-28 20:27:06,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.2542372881355932) internal successors, (74), 61 states have internal predecessors, (74), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2023-11-28 20:27:06,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 131 transitions. [2023-11-28 20:27:06,620 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 131 transitions. Word has length 69 [2023-11-28 20:27:06,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:06,620 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 131 transitions. [2023-11-28 20:27:06,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-28 20:27:06,621 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 131 transitions. [2023-11-28 20:27:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-28 20:27:06,623 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:06,623 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-28 20:27:06,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-28 20:27:06,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:06,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:27:06,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:06,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1537101799, now seen corresponding path program 1 times [2023-11-28 20:27:06,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:06,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597318179] [2023-11-28 20:27:06,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:06,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:27:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-28 20:27:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 20:27:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-28 20:27:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 20:27:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 20:27:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-28 20:27:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-28 20:27:07,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:07,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597318179] [2023-11-28 20:27:07,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597318179] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:27:07,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565074507] [2023-11-28 20:27:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:07,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:07,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:27:07,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:27:07,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:27:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:07,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-28 20:27:07,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:27:07,721 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-28 20:27:07,721 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:27:07,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565074507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:07,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:27:07,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 11 [2023-11-28 20:27:07,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198882715] [2023-11-28 20:27:07,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:07,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 20:27:07,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:07,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 20:27:07,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:27:07,724 INFO L87 Difference]: Start difference. First operand 96 states and 131 transitions. Second operand has 9 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-28 20:27:07,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:07,947 INFO L93 Difference]: Finished difference Result 187 states and 256 transitions. [2023-11-28 20:27:07,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 20:27:07,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 71 [2023-11-28 20:27:07,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:07,949 INFO L225 Difference]: With dead ends: 187 [2023-11-28 20:27:07,949 INFO L226 Difference]: Without dead ends: 101 [2023-11-28 20:27:07,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-28 20:27:07,951 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 20 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:07,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 833 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:27:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-28 20:27:07,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2023-11-28 20:27:07,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.25) internal successors, (75), 62 states have internal predecessors, (75), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2023-11-28 20:27:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 132 transitions. [2023-11-28 20:27:07,965 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 132 transitions. Word has length 71 [2023-11-28 20:27:07,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:07,966 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 132 transitions. [2023-11-28 20:27:07,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-28 20:27:07,966 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 132 transitions. [2023-11-28 20:27:07,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-28 20:27:07,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:07,968 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-28 20:27:07,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-28 20:27:08,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:27:08,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:27:08,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1035566892, now seen corresponding path program 1 times [2023-11-28 20:27:08,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:08,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611439987] [2023-11-28 20:27:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:08,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:27:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:27:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:27:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:27:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-28 20:27:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:27:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:27:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,572 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-28 20:27:08,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:08,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611439987] [2023-11-28 20:27:08,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611439987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:08,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:27:08,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 20:27:08,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024168273] [2023-11-28 20:27:08,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:08,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:27:08,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:08,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:27:08,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:27:08,575 INFO L87 Difference]: Start difference. First operand 97 states and 132 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:27:08,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:08,718 INFO L93 Difference]: Finished difference Result 199 states and 277 transitions. [2023-11-28 20:27:08,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 20:27:08,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2023-11-28 20:27:08,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:08,720 INFO L225 Difference]: With dead ends: 199 [2023-11-28 20:27:08,720 INFO L226 Difference]: Without dead ends: 112 [2023-11-28 20:27:08,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:27:08,722 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 42 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:08,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 496 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:27:08,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-28 20:27:08,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 105. [2023-11-28 20:27:08,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 70 states have internal predecessors, (87), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2023-11-28 20:27:08,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2023-11-28 20:27:08,737 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 73 [2023-11-28 20:27:08,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:08,737 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2023-11-28 20:27:08,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:27:08,737 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2023-11-28 20:27:08,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-28 20:27:08,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:08,739 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-28 20:27:08,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:27:08,740 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:27:08,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:08,740 INFO L85 PathProgramCache]: Analyzing trace with hash -601837806, now seen corresponding path program 1 times [2023-11-28 20:27:08,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:08,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544071929] [2023-11-28 20:27:08,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:08,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:27:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:27:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:08,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:27:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:27:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-28 20:27:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:27:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:27:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-28 20:27:09,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544071929] [2023-11-28 20:27:09,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544071929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:09,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:27:09,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:27:09,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522504750] [2023-11-28 20:27:09,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:09,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:27:09,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:09,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:27:09,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:27:09,042 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:27:09,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:09,156 INFO L93 Difference]: Finished difference Result 211 states and 294 transitions. [2023-11-28 20:27:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:27:09,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2023-11-28 20:27:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:09,158 INFO L225 Difference]: With dead ends: 211 [2023-11-28 20:27:09,158 INFO L226 Difference]: Without dead ends: 116 [2023-11-28 20:27:09,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:27:09,160 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 29 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:09,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 572 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:27:09,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-28 20:27:09,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 105. [2023-11-28 20:27:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.2647058823529411) internal successors, (86), 70 states have internal predecessors, (86), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2023-11-28 20:27:09,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 143 transitions. [2023-11-28 20:27:09,173 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 143 transitions. Word has length 73 [2023-11-28 20:27:09,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:09,173 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 143 transitions. [2023-11-28 20:27:09,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:27:09,174 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 143 transitions. [2023-11-28 20:27:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-28 20:27:09,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:27:09,175 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-28 20:27:09,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 20:27:09,176 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:27:09,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:27:09,176 INFO L85 PathProgramCache]: Analyzing trace with hash -561163056, now seen corresponding path program 1 times [2023-11-28 20:27:09,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:27:09,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77160381] [2023-11-28 20:27:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:27:09,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:27:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:27:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-28 20:27:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-28 20:27:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:27:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:27:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-28 20:27:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-28 20:27:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:27:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:27:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:27:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-28 20:27:09,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:27:09,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77160381] [2023-11-28 20:27:09,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77160381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:27:09,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:27:09,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:27:09,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79538328] [2023-11-28 20:27:09,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:27:09,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:27:09,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:27:09,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:27:09,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:27:09,454 INFO L87 Difference]: Start difference. First operand 105 states and 143 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:27:09,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:27:09,522 INFO L93 Difference]: Finished difference Result 135 states and 178 transitions. [2023-11-28 20:27:09,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:27:09,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2023-11-28 20:27:09,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:27:09,523 INFO L225 Difference]: With dead ends: 135 [2023-11-28 20:27:09,523 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 20:27:09,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:27:09,525 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 8 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:27:09,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 125 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:27:09,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 20:27:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 20:27:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:27:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 20:27:09,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2023-11-28 20:27:09,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:27:09,527 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:27:09,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-28 20:27:09,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:27:09,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 20:27:09,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:27:09,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 20:27:09,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 20:27:09,606 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validEXIT(lines 4715 4719) no Hoare annotation was computed. [2023-11-28 20:27:09,606 INFO L899 garLoopResultBuilder]: For program point L4718(line 4718) no Hoare annotation was computed. [2023-11-28 20:27:09,606 INFO L899 garLoopResultBuilder]: For program point L4718-3(line 4718) no Hoare annotation was computed. [2023-11-28 20:27:09,606 INFO L899 garLoopResultBuilder]: For program point L4718-2(line 4718) no Hoare annotation was computed. [2023-11-28 20:27:09,607 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4715 4719) the Hoare annotation is: true [2023-11-28 20:27:09,607 INFO L899 garLoopResultBuilder]: For program point L4718-5(line 4718) no Hoare annotation was computed. [2023-11-28 20:27:09,607 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validEXIT(lines 4726 4730) no Hoare annotation was computed. [2023-11-28 20:27:09,607 INFO L899 garLoopResultBuilder]: For program point L4729-2(line 4729) no Hoare annotation was computed. [2023-11-28 20:27:09,607 INFO L899 garLoopResultBuilder]: For program point L4729-3(line 4729) no Hoare annotation was computed. [2023-11-28 20:27:09,607 INFO L899 garLoopResultBuilder]: For program point L4729(line 4729) no Hoare annotation was computed. [2023-11-28 20:27:09,607 INFO L899 garLoopResultBuilder]: For program point L4729-5(line 4729) no Hoare annotation was computed. [2023-11-28 20:27:09,608 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4726 4730) the Hoare annotation is: true [2023-11-28 20:27:09,608 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2023-11-28 20:27:09,608 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-28 20:27:09,608 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-11-28 20:27:09,608 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-28 20:27:09,608 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2023-11-28 20:27:09,608 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2023-11-28 20:27:09,609 INFO L902 garLoopResultBuilder]: At program point L4923(line 4923) the Hoare annotation is: true [2023-11-28 20:27:09,609 INFO L902 garLoopResultBuilder]: At program point L4922(line 4922) the Hoare annotation is: true [2023-11-28 20:27:09,609 INFO L899 garLoopResultBuilder]: For program point L4923-1(line 4923) no Hoare annotation was computed. [2023-11-28 20:27:09,609 INFO L902 garLoopResultBuilder]: At program point L4920-1(line 4920) the Hoare annotation is: true [2023-11-28 20:27:09,609 INFO L899 garLoopResultBuilder]: For program point L4921-2(line 4921) no Hoare annotation was computed. [2023-11-28 20:27:09,609 INFO L899 garLoopResultBuilder]: For program point L4920-2(line 4920) no Hoare annotation was computed. [2023-11-28 20:27:09,609 INFO L902 garLoopResultBuilder]: At program point L4921(line 4921) the Hoare annotation is: true [2023-11-28 20:27:09,610 INFO L902 garLoopResultBuilder]: At program point L4922-1(line 4922) the Hoare annotation is: true [2023-11-28 20:27:09,610 INFO L902 garLoopResultBuilder]: At program point L4920(line 4920) the Hoare annotation is: true [2023-11-28 20:27:09,610 INFO L902 garLoopResultBuilder]: At program point L4921-1(line 4921) the Hoare annotation is: true [2023-11-28 20:27:09,610 INFO L899 garLoopResultBuilder]: For program point L4922-2(line 4922) no Hoare annotation was computed. [2023-11-28 20:27:09,610 INFO L902 garLoopResultBuilder]: At program point L4912-1(line 4912) the Hoare annotation is: true [2023-11-28 20:27:09,610 INFO L899 garLoopResultBuilder]: For program point L4912-2(line 4912) no Hoare annotation was computed. [2023-11-28 20:27:09,610 INFO L902 garLoopResultBuilder]: At program point L4913(lines 4913 4915) the Hoare annotation is: true [2023-11-28 20:27:09,611 INFO L902 garLoopResultBuilder]: At program point L4912(line 4912) the Hoare annotation is: true [2023-11-28 20:27:09,611 INFO L899 garLoopResultBuilder]: For program point L4913-1(lines 4913 4915) no Hoare annotation was computed. [2023-11-28 20:27:09,611 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4909 4924) the Hoare annotation is: true [2023-11-28 20:27:09,611 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeEXIT(lines 4909 4924) no Hoare annotation was computed. [2023-11-28 20:27:09,612 INFO L895 garLoopResultBuilder]: At program point L4990(line 4990) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_aws_linked_list_push_front_~node#1.base|) (<= 2 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (not (= |ULTIMATE.start_aws_linked_list_push_front_~list#1.base| 0))) [2023-11-28 20:27:09,612 INFO L899 garLoopResultBuilder]: For program point L4994-1(line 4994) no Hoare annotation was computed. [2023-11-28 20:27:09,612 INFO L895 garLoopResultBuilder]: At program point L4990-1(line 4990) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_aws_linked_list_push_front_~node#1.base|) (<= 2 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (= |ULTIMATE.start_aws_linked_list_push_front_#t~ret409#1| 0)) [2023-11-28 20:27:09,612 INFO L899 garLoopResultBuilder]: For program point L7389-1(line 7389) no Hoare annotation was computed. [2023-11-28 20:27:09,612 INFO L899 garLoopResultBuilder]: For program point L4990-2(line 4990) no Hoare annotation was computed. [2023-11-28 20:27:09,613 INFO L895 garLoopResultBuilder]: At program point L7389(line 7389) the Hoare annotation is: false [2023-11-28 20:27:09,613 INFO L895 garLoopResultBuilder]: At program point L4995(line 4995) the Hoare annotation is: false [2023-11-28 20:27:09,613 INFO L895 garLoopResultBuilder]: At program point L4995-1(line 4995) the Hoare annotation is: false [2023-11-28 20:27:09,613 INFO L895 garLoopResultBuilder]: At program point L4991(lines 4991 4993) the Hoare annotation is: false [2023-11-28 20:27:09,613 INFO L895 garLoopResultBuilder]: At program point L7390(line 7390) the Hoare annotation is: false [2023-11-28 20:27:09,614 INFO L899 garLoopResultBuilder]: For program point L4991-1(lines 4991 4993) no Hoare annotation was computed. [2023-11-28 20:27:09,614 INFO L899 garLoopResultBuilder]: For program point L4995-2(line 4995) no Hoare annotation was computed. [2023-11-28 20:27:09,614 INFO L895 garLoopResultBuilder]: At program point L7386(line 7386) the Hoare annotation is: false [2023-11-28 20:27:09,614 INFO L899 garLoopResultBuilder]: For program point L7390-1(line 7390) no Hoare annotation was computed. [2023-11-28 20:27:09,614 INFO L899 garLoopResultBuilder]: For program point L7386-2(line 7386) no Hoare annotation was computed. [2023-11-28 20:27:09,615 INFO L895 garLoopResultBuilder]: At program point L7386-1(line 7386) the Hoare annotation is: false [2023-11-28 20:27:09,615 INFO L899 garLoopResultBuilder]: For program point L6767-4(lines 6767 6774) no Hoare annotation was computed. [2023-11-28 20:27:09,615 INFO L895 garLoopResultBuilder]: At program point L6767-3(lines 6767 6774) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0))) [2023-11-28 20:27:09,615 INFO L899 garLoopResultBuilder]: For program point L6755-1(line 6755) no Hoare annotation was computed. [2023-11-28 20:27:09,615 INFO L899 garLoopResultBuilder]: For program point L4996-1(line 4996) no Hoare annotation was computed. [2023-11-28 20:27:09,616 INFO L895 garLoopResultBuilder]: At program point L6755(line 6755) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0))) [2023-11-28 20:27:09,616 INFO L895 garLoopResultBuilder]: At program point L4996(line 4996) the Hoare annotation is: false [2023-11-28 20:27:09,616 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-28 20:27:09,616 INFO L895 garLoopResultBuilder]: At program point L7387-1(line 7387) the Hoare annotation is: false [2023-11-28 20:27:09,616 INFO L895 garLoopResultBuilder]: At program point L7387(line 7387) the Hoare annotation is: false [2023-11-28 20:27:09,616 INFO L899 garLoopResultBuilder]: For program point L7387-2(line 7387) no Hoare annotation was computed. [2023-11-28 20:27:09,616 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-28 20:27:09,617 INFO L899 garLoopResultBuilder]: For program point L6756-1(line 6756) no Hoare annotation was computed. [2023-11-28 20:27:09,617 INFO L895 garLoopResultBuilder]: At program point L6756(line 6756) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0))) [2023-11-28 20:27:09,617 INFO L899 garLoopResultBuilder]: For program point L7388-2(line 7388) no Hoare annotation was computed. [2023-11-28 20:27:09,617 INFO L895 garLoopResultBuilder]: At program point L7388-1(line 7388) the Hoare annotation is: false [2023-11-28 20:27:09,617 INFO L895 garLoopResultBuilder]: At program point L7388(line 7388) the Hoare annotation is: false [2023-11-28 20:27:09,617 INFO L895 garLoopResultBuilder]: At program point L4994(line 4994) the Hoare annotation is: false [2023-11-28 20:27:09,618 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-28 20:27:09,618 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-28 20:27:09,618 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-28 20:27:09,618 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-28 20:27:09,618 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-28 20:27:09,618 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-28 20:27:09,618 INFO L899 garLoopResultBuilder]: For program point L4734(lines 4734 4738) no Hoare annotation was computed. [2023-11-28 20:27:09,619 INFO L899 garLoopResultBuilder]: For program point L4751(lines 4751 4761) no Hoare annotation was computed. [2023-11-28 20:27:09,619 INFO L899 garLoopResultBuilder]: For program point L4694(line 4694) no Hoare annotation was computed. [2023-11-28 20:27:09,619 INFO L899 garLoopResultBuilder]: For program point L4694-3(lines 4694 4695) no Hoare annotation was computed. [2023-11-28 20:27:09,619 INFO L899 garLoopResultBuilder]: For program point L4756-1(lines 4756 4761) no Hoare annotation was computed. [2023-11-28 20:27:09,619 INFO L899 garLoopResultBuilder]: For program point L4694-2(line 4694) no Hoare annotation was computed. [2023-11-28 20:27:09,619 INFO L895 garLoopResultBuilder]: At program point L4756(line 4756) the Hoare annotation is: false [2023-11-28 20:27:09,619 INFO L899 garLoopResultBuilder]: For program point L4694-8(lines 4694 4696) no Hoare annotation was computed. [2023-11-28 20:27:09,620 INFO L899 garLoopResultBuilder]: For program point L4694-5(lines 4694 4695) no Hoare annotation was computed. [2023-11-28 20:27:09,620 INFO L899 garLoopResultBuilder]: For program point L4694-6(lines 4694 4696) no Hoare annotation was computed. [2023-11-28 20:27:09,620 INFO L899 garLoopResultBuilder]: For program point L4694-11(lines 4694 4704) no Hoare annotation was computed. [2023-11-28 20:27:09,620 INFO L899 garLoopResultBuilder]: For program point L4694-9(lines 4694 4697) no Hoare annotation was computed. [2023-11-28 20:27:09,620 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_validEXIT(lines 4691 4708) no Hoare annotation was computed. [2023-11-28 20:27:09,621 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_valid_deep_returnLabel#1(lines 4731 4765) no Hoare annotation was computed. [2023-11-28 20:27:09,621 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4691 4708) the Hoare annotation is: true [2023-11-28 20:27:09,621 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_validFINAL(lines 4691 4708) no Hoare annotation was computed. [2023-11-28 20:27:09,621 INFO L899 garLoopResultBuilder]: For program point L4750-3(lines 4750 4763) no Hoare annotation was computed. [2023-11-28 20:27:09,621 INFO L895 garLoopResultBuilder]: At program point L4750-2(lines 4750 4763) the Hoare annotation is: false [2023-11-28 20:27:09,625 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-28 20:27:09,627 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:27:09,637 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~#to_add~0 [2023-11-28 20:27:09,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:27:09 BoogieIcfgContainer [2023-11-28 20:27:09,639 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:27:09,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:27:09,640 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:27:09,640 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:27:09,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:27:04" (3/4) ... [2023-11-28 20:27:09,643 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:27:09,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2023-11-28 20:27:09,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2023-11-28 20:27:09,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2023-11-28 20:27:09,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_insert_before [2023-11-28 20:27:09,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-28 20:27:09,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-28 20:27:09,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_is_valid [2023-11-28 20:27:09,655 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-28 20:27:09,656 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-28 20:27:09,657 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 20:27:09,658 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 20:27:09,776 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:27:09,777 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:27:09,777 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:27:09,777 INFO L158 Benchmark]: Toolchain (without parser) took 7838.58ms. Allocated memory was 136.3MB in the beginning and 255.9MB in the end (delta: 119.5MB). Free memory was 92.5MB in the beginning and 175.0MB in the end (delta: -82.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-28 20:27:09,778 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:27:09,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1933.20ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 92.2MB in the beginning and 81.0MB in the end (delta: 11.2MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-28 20:27:09,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.47ms. Allocated memory is still 163.6MB. Free memory was 81.0MB in the beginning and 75.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 20:27:09,779 INFO L158 Benchmark]: Boogie Preprocessor took 74.47ms. Allocated memory is still 163.6MB. Free memory was 75.6MB in the beginning and 70.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:27:09,779 INFO L158 Benchmark]: RCFGBuilder took 652.48ms. Allocated memory is still 163.6MB. Free memory was 70.5MB in the beginning and 97.3MB in the end (delta: -26.8MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-11-28 20:27:09,780 INFO L158 Benchmark]: TraceAbstraction took 4924.66ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 96.2MB in the beginning and 182.4MB in the end (delta: -86.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-11-28 20:27:09,780 INFO L158 Benchmark]: Witness Printer took 136.75ms. Allocated memory is still 255.9MB. Free memory was 182.4MB in the beginning and 175.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 20:27:09,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1933.20ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 92.2MB in the beginning and 81.0MB in the end (delta: 11.2MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.47ms. Allocated memory is still 163.6MB. Free memory was 81.0MB in the beginning and 75.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.47ms. Allocated memory is still 163.6MB. Free memory was 75.6MB in the beginning and 70.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 652.48ms. Allocated memory is still 163.6MB. Free memory was 70.5MB in the beginning and 97.3MB in the end (delta: -26.8MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4924.66ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 96.2MB in the beginning and 182.4MB in the end (delta: -86.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 136.75ms. Allocated memory is still 255.9MB. Free memory was 182.4MB in the beginning and 175.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~#to_add~0 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 2981 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2380 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 491 IncrementalHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 601 mSDtfsCounter, 491 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 299 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=4, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 25 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 260 PreInvPairs, 263 NumberOfFragments, 81 HoareAnnotationTreeSize, 260 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 37 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 568 NumberOfCodeBlocks, 568 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 560 ConstructedInterpolants, 0 QuantifiedInterpolants, 807 SizeOfPredicates, 9 NumberOfNonLiveVariables, 857 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 350/368 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4750]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6767]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-28 20:27:09,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c034ae5e-6abd-4ca6-b15c-d88348156e88/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE