./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.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_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c9366fdd5d21c350c15a66da5c847539e77b568b4d6276b0911cc19e72422513 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:56:27,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:56:28,062 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-24 22:56:28,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:56:28,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:56:28,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:56:28,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:56:28,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:56:28,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:56:28,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:56:28,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:56:28,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:56:28,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:56:28,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:56:28,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:56:28,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:56:28,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:56:28,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:56:28,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:56:28,105 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:56:28,105 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:56:28,106 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:56:28,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:56:28,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:56:28,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:56:28,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:56:28,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:56:28,109 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:56:28,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:56:28,110 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:56:28,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9366fdd5d21c350c15a66da5c847539e77b568b4d6276b0911cc19e72422513 [2023-11-24 22:56:28,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:56:28,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:56:28,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:56:28,456 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:56:28,457 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:56:28,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i [2023-11-24 22:56:31,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:56:32,368 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:56:32,369 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i [2023-11-24 22:56:32,404 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/data/feed53b1c/2042231511504fbbaadb04ccd298287b/FLAG773c4d18b [2023-11-24 22:56:32,420 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/data/feed53b1c/2042231511504fbbaadb04ccd298287b [2023-11-24 22:56:32,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:56:32,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:56:32,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:56:32,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:56:32,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:56:32,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:56:32" (1/1) ... [2023-11-24 22:56:32,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da3fee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:32, skipping insertion in model container [2023-11-24 22:56:32,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:56:32" (1/1) ... [2023-11-24 22:56:32,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:56:32,927 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_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4494,4507] [2023-11-24 22:56:32,936 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_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4554,4567] [2023-11-24 22:56:34,028 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,029 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,030 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,030 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,032 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,052 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,053 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,056 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,057 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,059 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,060 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,061 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,062 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,490 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 22:56:34,492 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 22:56:34,495 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 22:56:34,499 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 22:56:34,501 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 22:56:34,502 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 22:56:34,502 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 22:56:34,503 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 22:56:34,504 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 22:56:34,505 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 22:56:34,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:56:34,712 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:56:34,741 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_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4494,4507] [2023-11-24 22:56:34,742 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_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/sv-benchmarks/c/aws-c-common/aws_linked_list_prev_harness_negated.i[4554,4567] [2023-11-24 22:56:34,796 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,797 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,797 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,798 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,799 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,811 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,812 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,813 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,814 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,815 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,816 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,817 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,817 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 22:56:34,863 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 22:56:34,865 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 22:56:34,866 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 22:56:34,867 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 22:56:34,868 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 22:56:34,868 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 22:56:34,869 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 22:56:34,870 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 22:56:34,870 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 22:56:34,871 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 22:56:34,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:56:35,239 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,240 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,240 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,240 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,240 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,242 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,242 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,242 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,242 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,243 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,243 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,243 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,243 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,244 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,244 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:56:35,252 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:56:35,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35 WrapperNode [2023-11-24 22:56:35,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:56:35,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:56:35,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:56:35,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:56:35,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,420 INFO L138 Inliner]: procedures = 678, calls = 1039, calls flagged for inlining = 50, calls inlined = 4, statements flattened = 56 [2023-11-24 22:56:35,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:56:35,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:56:35,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:56:35,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:56:35,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,469 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:56:35,470 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:56:35,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:56:35,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:56:35,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:56:35" (1/1) ... [2023-11-24 22:56:35,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:56:35,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:56:35,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:56:35,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:56:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:56:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:56:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:56:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-24 22:56:35,588 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-24 22:56:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:56:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 22:56:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:56:35,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:56:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:56:35,589 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:56:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:56:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 22:56:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 22:56:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-24 22:56:35,591 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-24 22:56:35,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:56:35,887 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:56:35,889 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:56:36,124 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:56:36,278 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:56:36,278 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:56:36,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:56:36 BoogieIcfgContainer [2023-11-24 22:56:36,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:56:36,281 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:56:36,281 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:56:36,293 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:56:36,293 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:56:36" (1/1) ... [2023-11-24 22:56:36,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:56:36,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:56:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2023-11-24 22:56:36,366 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-11-24 22:56:36,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:56:36,370 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:56:36,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:56:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:56:36,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:56:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:56:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:56:37,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:56:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:56:37,107 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:56:37,143 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret341 could not be translated [2023-11-24 22:56:37,144 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret341 could not be translated [2023-11-24 22:56:37,145 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret343 could not be translated [2023-11-24 22:56:37,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:56:37 ImpRootNode [2023-11-24 22:56:37,150 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:56:37,151 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:56:37,151 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:56:37,152 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:56:37,152 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:56:36" (3/4) ... [2023-11-24 22:56:37,153 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 22:56:37,159 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret341 could not be translated [2023-11-24 22:56:37,160 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret341 could not be translated [2023-11-24 22:56:37,160 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret343 could not be translated [2023-11-24 22:56:37,204 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:56:37,204 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:56:37,205 INFO L158 Benchmark]: Toolchain (without parser) took 4779.70ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 102.1MB in the beginning and 123.4MB in the end (delta: -21.2MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2023-11-24 22:56:37,206 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:56:37,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2827.76ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 101.8MB in the beginning and 131.3MB in the end (delta: -29.5MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2023-11-24 22:56:37,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 165.20ms. Allocated memory is still 201.3MB. Free memory was 131.3MB in the beginning and 126.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:56:37,208 INFO L158 Benchmark]: Boogie Preprocessor took 48.39ms. Allocated memory is still 201.3MB. Free memory was 126.1MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:56:37,208 INFO L158 Benchmark]: RCFGBuilder took 809.66ms. Allocated memory is still 201.3MB. Free memory was 124.0MB in the beginning and 95.7MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-24 22:56:37,209 INFO L158 Benchmark]: CodeCheck took 869.82ms. Allocated memory is still 201.3MB. Free memory was 95.7MB in the beginning and 125.5MB in the end (delta: -29.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:56:37,210 INFO L158 Benchmark]: Witness Printer took 53.06ms. Allocated memory is still 201.3MB. Free memory was 125.5MB in the beginning and 123.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:56:37,213 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6903-L6908] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7328] static __thread int tl_last_error = 0; [L7361] CALL aws_linked_list_prev_harness() [L7346] struct aws_linked_list_node node; [L7347] struct aws_linked_list_node before; [L7350] node.prev = &before [L7351] before.next = &node [L7354] CALL aws_linked_list_prev(&node) [L4849] CALL, EXPR aws_linked_list_node_prev_is_valid(node) VAL [node={32288:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4731] EXPR node && node->prev [L4731] EXPR node->prev [L4731] EXPR node && node->prev [L4731] EXPR node && node->prev && node->prev->next == node [L4731] EXPR node->prev [L4731] EXPR node->prev->next [L4731] EXPR node && node->prev && node->prev->next == node [L4731] return node && node->prev && node->prev->next == node; [L4849] RET, EXPR aws_linked_list_node_prev_is_valid(node) VAL [node={32288:0}, node={32288:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4849] CALL assume_abort_if_not((aws_linked_list_node_prev_is_valid(node))) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L211] COND FALSE !(!cond) [L4849] RET assume_abort_if_not((aws_linked_list_node_prev_is_valid(node))) VAL [node={32288:0}, node={32288:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4850] EXPR node->prev [L4850] struct aws_linked_list_node *rval = node->prev; [L4851] CALL, EXPR aws_linked_list_node_prev_is_valid(node) VAL [node={32288:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4731] EXPR node && node->prev [L4731] EXPR node->prev [L4731] EXPR node && node->prev [L4731] EXPR node && node->prev && node->prev->next == node [L4731] EXPR node->prev [L4731] EXPR node->prev->next [L4731] EXPR node && node->prev && node->prev->next == node [L4731] return node && node->prev && node->prev->next == node; [L4851] RET, EXPR aws_linked_list_node_prev_is_valid(node) VAL [node={32288:0}, node={32288:0}, rval={32287:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4851] CALL __VERIFIER_assert(!((aws_linked_list_node_prev_is_valid(node)))) VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] reach_error() VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 155.2MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2827.76ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 101.8MB in the beginning and 131.3MB in the end (delta: -29.5MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 165.20ms. Allocated memory is still 201.3MB. Free memory was 131.3MB in the beginning and 126.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.39ms. Allocated memory is still 201.3MB. Free memory was 126.1MB in the beginning and 124.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 809.66ms. Allocated memory is still 201.3MB. Free memory was 124.0MB in the beginning and 95.7MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * CodeCheck took 869.82ms. Allocated memory is still 201.3MB. Free memory was 95.7MB in the beginning and 125.5MB in the end (delta: -29.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 53.06ms. Allocated memory is still 201.3MB. Free memory was 125.5MB in the beginning and 123.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret341 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret341 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret343 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret341 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret341 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret343 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-24 22:56:37,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca0f95da-8d21-4e41-be26-a2ee4aecbbd6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE