./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 e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/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_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:30:01,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:30:01,763 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:30:01,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:30:01,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:30:01,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:30:01,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:30:01,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:30:01,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:30:01,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:30:01,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:30:01,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:30:01,824 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:30:01,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:30:01,826 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:30:01,826 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:30:01,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:30:01,827 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:30:01,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:30:01,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:30:01,829 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:30:01,829 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:30:01,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:30:01,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:30:01,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:30:01,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:30:01,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:30:01,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:30:01,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:30:01,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:30:01,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:30:01,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:30:01,835 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:30:01,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:30:01,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:30:01,836 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:30:01,836 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_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a [2023-11-06 22:30:02,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:30:02,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:30:02,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:30:02,178 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:30:02,179 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:30:02,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2023-11-06 22:30:05,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:30:05,965 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:30:05,966 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2023-11-06 22:30:06,019 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/data/0e4287be2/d4e044dd5e694cb5ada74a9fc951bd7f/FLAG8b8e62c58 [2023-11-06 22:30:06,040 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/data/0e4287be2/d4e044dd5e694cb5ada74a9fc951bd7f [2023-11-06 22:30:06,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:30:06,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:30:06,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:30:06,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:30:06,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:30:06,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:30:06" (1/1) ... [2023-11-06 22:30:06,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6acc5122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:06, skipping insertion in model container [2023-11-06 22:30:06,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:30:06" (1/1) ... [2023-11-06 22:30:06,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:30:06,524 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_4432cf02-0bb8-45d9-b752-ca01d016141f/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2023-11-06 22:30:06,533 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_4432cf02-0bb8-45d9-b752-ca01d016141f/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2023-11-06 22:30:07,586 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,587 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,588 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,589 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,590 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,607 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,608 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,611 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,612 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,614 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,616 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,617 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:07,618 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,049 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:30:08,051 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:30:08,053 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:30:08,055 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:30:08,057 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:30:08,058 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:30:08,060 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:30:08,061 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:30:08,062 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:30:08,063 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:30:08,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:30:08,298 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:30:08,313 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_4432cf02-0bb8-45d9-b752-ca01d016141f/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2023-11-06 22:30:08,314 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_4432cf02-0bb8-45d9-b752-ca01d016141f/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2023-11-06 22:30:08,367 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,367 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,368 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,369 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,370 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,383 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,383 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,385 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,386 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,388 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,389 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,390 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,390 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 22:30:08,441 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 22:30:08,456 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 22:30:08,457 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 22:30:08,459 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 22:30:08,460 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 22:30:08,461 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 22:30:08,462 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 22:30:08,463 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 22:30:08,464 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 22:30:08,464 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 22:30:08,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:30:08,850 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,850 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,850 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,851 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,851 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,851 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,851 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,852 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,853 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,853 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,854 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,854 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,854 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,855 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,855 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,856 WARN L672 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:30:08,863 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:30:08,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08 WrapperNode [2023-11-06 22:30:08,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:30:08,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:30:08,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:30:08,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:30:08,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,069 INFO L138 Inliner]: procedures = 678, calls = 1048, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 151 [2023-11-06 22:30:09,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:30:09,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:30:09,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:30:09,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:30:09,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,160 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:30:09,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:30:09,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:30:09,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:30:09,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (1/1) ... [2023-11-06 22:30:09,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:30:09,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:30:09,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:30:09,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:30:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:30:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:30:09,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:30:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-06 22:30:09,249 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-06 22:30:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:30:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2023-11-06 22:30:09,251 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2023-11-06 22:30:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:30:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:30:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2023-11-06 22:30:09,252 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2023-11-06 22:30:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:30:09,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:30:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:30:09,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:30:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:30:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:30:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:30:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-06 22:30:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-06 22:30:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2023-11-06 22:30:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2023-11-06 22:30:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:30:09,557 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:30:09,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:30:10,085 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:30:10,093 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:30:10,093 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:30:10,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:30:10 BoogieIcfgContainer [2023-11-06 22:30:10,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:30:10,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:30:10,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:30:10,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:30:10,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:30:06" (1/3) ... [2023-11-06 22:30:10,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ffc52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:30:10, skipping insertion in model container [2023-11-06 22:30:10,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:30:08" (2/3) ... [2023-11-06 22:30:10,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ffc52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:30:10, skipping insertion in model container [2023-11-06 22:30:10,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:30:10" (3/3) ... [2023-11-06 22:30:10,106 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_front_harness.i [2023-11-06 22:30:10,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:30:10,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:30:10,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:30:10,193 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c003c65, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:30:10,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:30:10,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 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) [2023-11-06 22:30:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:30:10,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:10,214 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:30:10,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:10,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:10,226 INFO L85 PathProgramCache]: Analyzing trace with hash 2111829670, now seen corresponding path program 1 times [2023-11-06 22:30:10,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:10,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702659887] [2023-11-06 22:30:10,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:10,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:30:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:30:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-06 22:30:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:30:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-06 22:30:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:30:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:30:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:30:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-11-06 22:30:10,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:10,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702659887] [2023-11-06 22:30:11,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702659887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:11,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:11,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:30:11,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160239284] [2023-11-06 22:30:11,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:11,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:30:11,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:11,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:30:11,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:30:11,046 INFO L87 Difference]: Start difference. First operand has 104 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 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 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2023-11-06 22:30:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:11,157 INFO L93 Difference]: Finished difference Result 204 states and 302 transitions. [2023-11-06 22:30:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:30:11,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 74 [2023-11-06 22:30:11,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:11,176 INFO L225 Difference]: With dead ends: 204 [2023-11-06 22:30:11,177 INFO L226 Difference]: Without dead ends: 103 [2023-11-06 22:30:11,192 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 [2023-11-06 22:30:11,196 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 3 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:11,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 400 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:30:11,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-06 22:30:11,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2023-11-06 22:30:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 67 states have internal predecessors, (81), 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) [2023-11-06 22:30:11,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 136 transitions. [2023-11-06 22:30:11,250 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 136 transitions. Word has length 74 [2023-11-06 22:30:11,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:11,251 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 136 transitions. [2023-11-06 22:30:11,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2023-11-06 22:30:11,251 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 136 transitions. [2023-11-06 22:30:11,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:30:11,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:11,255 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:30:11,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:30:11,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:11,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:11,256 INFO L85 PathProgramCache]: Analyzing trace with hash 358576094, now seen corresponding path program 1 times [2023-11-06 22:30:11,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:11,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176362948] [2023-11-06 22:30:11,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:11,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:30:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:30:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:11,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-06 22:30:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:11,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:30:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-06 22:30:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:11,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:30:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:30:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:30:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-06 22:30:12,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:12,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176362948] [2023-11-06 22:30:12,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176362948] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:30:12,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883890629] [2023-11-06 22:30:12,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:12,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:30:12,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:30:12,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:30:12,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:30:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:12,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-06 22:30:12,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:30:12,524 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 22:30:12,524 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:30:12,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883890629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:12,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:30:12,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 11 [2023-11-06 22:30:12,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363682713] [2023-11-06 22:30:12,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:12,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:30:12,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:12,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:30:12,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:30:12,531 INFO L87 Difference]: Start difference. First operand 102 states and 136 transitions. Second operand has 9 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 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) [2023-11-06 22:30:12,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:12,969 INFO L93 Difference]: Finished difference Result 194 states and 261 transitions. [2023-11-06 22:30:12,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:30:12,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 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 74 [2023-11-06 22:30:12,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:12,979 INFO L225 Difference]: With dead ends: 194 [2023-11-06 22:30:12,980 INFO L226 Difference]: Without dead ends: 106 [2023-11-06 22:30:12,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:30:12,985 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 132 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:12,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 628 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:30:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-06 22:30:13,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2023-11-06 22:30:13,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 69 states have internal predecessors, (82), 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) [2023-11-06 22:30:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2023-11-06 22:30:13,028 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 139 transitions. Word has length 74 [2023-11-06 22:30:13,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:13,028 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 139 transitions. [2023-11-06 22:30:13,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 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) [2023-11-06 22:30:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 139 transitions. [2023-11-06 22:30:13,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:30:13,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:13,035 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:30:13,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:30:13,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:30:13,244 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:13,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:13,245 INFO L85 PathProgramCache]: Analyzing trace with hash 87330846, now seen corresponding path program 1 times [2023-11-06 22:30:13,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:13,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467093280] [2023-11-06 22:30:13,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:13,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:30:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:30:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-06 22:30:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:30:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:30:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-06 22:30:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 22:30:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 22:30:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-06 22:30:13,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:13,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467093280] [2023-11-06 22:30:13,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467093280] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:30:13,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714712058] [2023-11-06 22:30:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:13,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:30:13,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:30:13,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:30:13,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:30:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:14,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-06 22:30:14,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:30:14,278 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 22:30:14,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:30:14,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714712058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:14,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:30:14,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 12 [2023-11-06 22:30:14,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19624504] [2023-11-06 22:30:14,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:14,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:30:14,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:14,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:30:14,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:30:14,281 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. Second operand has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 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) [2023-11-06 22:30:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:14,750 INFO L93 Difference]: Finished difference Result 199 states and 268 transitions. [2023-11-06 22:30:14,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:30:14,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 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 76 [2023-11-06 22:30:14,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:14,757 INFO L225 Difference]: With dead ends: 199 [2023-11-06 22:30:14,758 INFO L226 Difference]: Without dead ends: 109 [2023-11-06 22:30:14,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:30:14,760 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 135 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:14,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 733 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:30:14,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-06 22:30:14,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2023-11-06 22:30:14,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 70 states have internal predecessors, (83), 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) [2023-11-06 22:30:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2023-11-06 22:30:14,777 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 140 transitions. Word has length 76 [2023-11-06 22:30:14,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:14,778 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 140 transitions. [2023-11-06 22:30:14,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 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) [2023-11-06 22:30:14,779 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 140 transitions. [2023-11-06 22:30:14,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:30:14,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:14,780 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:30:14,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:30:14,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:30:14,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:30:14,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash 958884107, now seen corresponding path program 1 times [2023-11-06 22:30:14,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:14,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32561768] [2023-11-06 22:30:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:14,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:30:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:30:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:30:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:30:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:30:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 22:30:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:30:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:30:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:30:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:15,392 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-11-06 22:30:15,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:15,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32561768] [2023-11-06 22:30:15,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32561768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:15,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:15,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:30:15,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43421408] [2023-11-06 22:30:15,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:15,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:30:15,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:15,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:30:15,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:30:15,395 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 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) [2023-11-06 22:30:15,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:15,491 INFO L93 Difference]: Finished difference Result 143 states and 185 transitions. [2023-11-06 22:30:15,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:30:15,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 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 78 [2023-11-06 22:30:15,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:15,493 INFO L225 Difference]: With dead ends: 143 [2023-11-06 22:30:15,493 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:30:15,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:30:15,495 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 34 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:15,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 227 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:30:15,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:30:15,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:30:15,497 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) [2023-11-06 22:30:15,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:30:15,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-11-06 22:30:15,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:15,498 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:30:15,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 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) [2023-11-06 22:30:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:30:15,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:30:15,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:30:15,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:30:15,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:30:15,686 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validFINAL(lines 4715 4719) no Hoare annotation was computed. [2023-11-06 22:30:15,686 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validEXIT(lines 4715 4719) no Hoare annotation was computed. [2023-11-06 22:30:15,686 INFO L899 garLoopResultBuilder]: For program point L4718(line 4718) no Hoare annotation was computed. [2023-11-06 22:30:15,686 INFO L899 garLoopResultBuilder]: For program point L4718-3(line 4718) no Hoare annotation was computed. [2023-11-06 22:30:15,686 INFO L899 garLoopResultBuilder]: For program point L4718-2(line 4718) no Hoare annotation was computed. [2023-11-06 22:30:15,687 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4715 4719) the Hoare annotation is: true [2023-11-06 22:30:15,687 INFO L899 garLoopResultBuilder]: For program point L4718-5(line 4718) no Hoare annotation was computed. [2023-11-06 22:30:15,687 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validFINAL(lines 4726 4730) no Hoare annotation was computed. [2023-11-06 22:30:15,687 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validEXIT(lines 4726 4730) no Hoare annotation was computed. [2023-11-06 22:30:15,687 INFO L899 garLoopResultBuilder]: For program point L4729-2(line 4729) no Hoare annotation was computed. [2023-11-06 22:30:15,687 INFO L899 garLoopResultBuilder]: For program point L4729-3(line 4729) no Hoare annotation was computed. [2023-11-06 22:30:15,687 INFO L899 garLoopResultBuilder]: For program point L4729(line 4729) no Hoare annotation was computed. [2023-11-06 22:30:15,687 INFO L899 garLoopResultBuilder]: For program point L4729-5(line 4729) no Hoare annotation was computed. [2023-11-06 22:30:15,688 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4726 4730) the Hoare annotation is: true [2023-11-06 22:30:15,688 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2023-11-06 22:30:15,688 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 210 212) the Hoare annotation is: true [2023-11-06 22:30:15,688 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-11-06 22:30:15,688 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2023-11-06 22:30:15,688 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2023-11-06 22:30:15,688 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2023-11-06 22:30:15,688 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 266) the Hoare annotation is: true [2023-11-06 22:30:15,688 INFO L902 garLoopResultBuilder]: At program point L4923(line 4923) the Hoare annotation is: true [2023-11-06 22:30:15,689 INFO L902 garLoopResultBuilder]: At program point L4922(line 4922) the Hoare annotation is: true [2023-11-06 22:30:15,689 INFO L899 garLoopResultBuilder]: For program point L4923-1(line 4923) no Hoare annotation was computed. [2023-11-06 22:30:15,689 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeFINAL(lines 4909 4924) no Hoare annotation was computed. [2023-11-06 22:30:15,689 INFO L902 garLoopResultBuilder]: At program point L4920-1(line 4920) the Hoare annotation is: true [2023-11-06 22:30:15,689 INFO L899 garLoopResultBuilder]: For program point L4921-2(line 4921) no Hoare annotation was computed. [2023-11-06 22:30:15,689 INFO L899 garLoopResultBuilder]: For program point L4920-2(line 4920) no Hoare annotation was computed. [2023-11-06 22:30:15,689 INFO L902 garLoopResultBuilder]: At program point L4921(line 4921) the Hoare annotation is: true [2023-11-06 22:30:15,690 INFO L902 garLoopResultBuilder]: At program point L4922-1(line 4922) the Hoare annotation is: true [2023-11-06 22:30:15,690 INFO L902 garLoopResultBuilder]: At program point L4920(line 4920) the Hoare annotation is: true [2023-11-06 22:30:15,690 INFO L902 garLoopResultBuilder]: At program point L4921-1(line 4921) the Hoare annotation is: true [2023-11-06 22:30:15,691 INFO L899 garLoopResultBuilder]: For program point L4922-2(line 4922) no Hoare annotation was computed. [2023-11-06 22:30:15,691 INFO L902 garLoopResultBuilder]: At program point L4912-1(line 4912) the Hoare annotation is: true [2023-11-06 22:30:15,691 INFO L899 garLoopResultBuilder]: For program point L4912-2(line 4912) no Hoare annotation was computed. [2023-11-06 22:30:15,691 INFO L902 garLoopResultBuilder]: At program point L4913(lines 4913 4915) the Hoare annotation is: true [2023-11-06 22:30:15,691 INFO L902 garLoopResultBuilder]: At program point L4912(line 4912) the Hoare annotation is: true [2023-11-06 22:30:15,692 INFO L899 garLoopResultBuilder]: For program point L4913-1(lines 4913 4915) no Hoare annotation was computed. [2023-11-06 22:30:15,692 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4909 4924) the Hoare annotation is: true [2023-11-06 22:30:15,692 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeEXIT(lines 4909 4924) no Hoare annotation was computed. [2023-11-06 22:30:15,693 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|) (<= 1 |#StackHeapBarrier|) (<= 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))) [2023-11-06 22:30:15,693 INFO L899 garLoopResultBuilder]: For program point L4994-1(line 4994) no Hoare annotation was computed. [2023-11-06 22:30:15,693 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|) (<= 1 |#StackHeapBarrier|) (<= 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)) [2023-11-06 22:30:15,693 INFO L899 garLoopResultBuilder]: For program point L7389-1(line 7389) no Hoare annotation was computed. [2023-11-06 22:30:15,694 INFO L899 garLoopResultBuilder]: For program point L4990-2(line 4990) no Hoare annotation was computed. [2023-11-06 22:30:15,694 INFO L895 garLoopResultBuilder]: At program point L7389(line 7389) the Hoare annotation is: false [2023-11-06 22:30:15,694 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(line 7392) the Hoare annotation is: true [2023-11-06 22:30:15,694 INFO L899 garLoopResultBuilder]: For program point L6754(lines 6754 6778) no Hoare annotation was computed. [2023-11-06 22:30:15,694 INFO L895 garLoopResultBuilder]: At program point L4995(line 4995) the Hoare annotation is: false [2023-11-06 22:30:15,694 INFO L895 garLoopResultBuilder]: At program point L4995-1(line 4995) the Hoare annotation is: false [2023-11-06 22:30:15,694 INFO L895 garLoopResultBuilder]: At program point L4991(lines 4991 4993) the Hoare annotation is: false [2023-11-06 22:30:15,695 INFO L895 garLoopResultBuilder]: At program point L7390(line 7390) the Hoare annotation is: false [2023-11-06 22:30:15,695 INFO L899 garLoopResultBuilder]: For program point L4991-1(lines 4991 4993) no Hoare annotation was computed. [2023-11-06 22:30:15,695 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:30:15,695 INFO L899 garLoopResultBuilder]: For program point L4995-2(line 4995) no Hoare annotation was computed. [2023-11-06 22:30:15,695 INFO L895 garLoopResultBuilder]: At program point L7386(line 7386) the Hoare annotation is: false [2023-11-06 22:30:15,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:30:15,696 INFO L899 garLoopResultBuilder]: For program point L7390-1(line 7390) no Hoare annotation was computed. [2023-11-06 22:30:15,696 INFO L899 garLoopResultBuilder]: For program point L7386-2(line 7386) no Hoare annotation was computed. [2023-11-06 22:30:15,696 INFO L895 garLoopResultBuilder]: At program point L7386-1(line 7386) the Hoare annotation is: false [2023-11-06 22:30:15,696 INFO L899 garLoopResultBuilder]: For program point L7374(lines 7374 7391) no Hoare annotation was computed. [2023-11-06 22:30:15,696 INFO L899 garLoopResultBuilder]: For program point L6767-4(lines 6767 6774) no Hoare annotation was computed. [2023-11-06 22:30:15,696 INFO L895 garLoopResultBuilder]: At program point L6767-3(lines 6767 6774) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (<= 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))) [2023-11-06 22:30:15,697 INFO L899 garLoopResultBuilder]: For program point L6767-2(lines 6767 6774) no Hoare annotation was computed. [2023-11-06 22:30:15,697 INFO L899 garLoopResultBuilder]: For program point L6755-1(line 6755) no Hoare annotation was computed. [2023-11-06 22:30:15,697 INFO L899 garLoopResultBuilder]: For program point L4996-1(line 4996) no Hoare annotation was computed. [2023-11-06 22:30:15,697 INFO L895 garLoopResultBuilder]: At program point L6755(line 6755) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (<= 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))) [2023-11-06 22:30:15,697 INFO L895 garLoopResultBuilder]: At program point L4996(line 4996) the Hoare annotation is: false [2023-11-06 22:30:15,697 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:30:15,698 INFO L895 garLoopResultBuilder]: At program point L7387-1(line 7387) the Hoare annotation is: false [2023-11-06 22:30:15,698 INFO L895 garLoopResultBuilder]: At program point L7387(line 7387) the Hoare annotation is: false [2023-11-06 22:30:15,698 INFO L899 garLoopResultBuilder]: For program point L7387-2(line 7387) no Hoare annotation was computed. [2023-11-06 22:30:15,698 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:30:15,698 INFO L899 garLoopResultBuilder]: For program point L6756-1(line 6756) no Hoare annotation was computed. [2023-11-06 22:30:15,698 INFO L895 garLoopResultBuilder]: At program point L6756(line 6756) the Hoare annotation is: (and (<= 1 |#StackHeapBarrier|) (<= 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))) [2023-11-06 22:30:15,699 INFO L899 garLoopResultBuilder]: For program point L7388-2(line 7388) no Hoare annotation was computed. [2023-11-06 22:30:15,699 INFO L895 garLoopResultBuilder]: At program point L7388-1(line 7388) the Hoare annotation is: false [2023-11-06 22:30:15,699 INFO L899 garLoopResultBuilder]: For program point L4989(lines 4989 4997) no Hoare annotation was computed. [2023-11-06 22:30:15,699 INFO L895 garLoopResultBuilder]: At program point L7388(line 7388) the Hoare annotation is: false [2023-11-06 22:30:15,699 INFO L895 garLoopResultBuilder]: At program point L4994(line 4994) the Hoare annotation is: false [2023-11-06 22:30:15,699 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2023-11-06 22:30:15,700 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2023-11-06 22:30:15,700 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2023-11-06 22:30:15,702 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2023-11-06 22:30:15,702 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 222 224) the Hoare annotation is: true [2023-11-06 22:30:15,706 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2023-11-06 22:30:15,706 INFO L899 garLoopResultBuilder]: For program point L4734(lines 4734 4738) no Hoare annotation was computed. [2023-11-06 22:30:15,707 INFO L899 garLoopResultBuilder]: For program point L4751(lines 4751 4761) no Hoare annotation was computed. [2023-11-06 22:30:15,707 INFO L899 garLoopResultBuilder]: For program point L4694(line 4694) no Hoare annotation was computed. [2023-11-06 22:30:15,707 INFO L899 garLoopResultBuilder]: For program point L4694-3(lines 4694 4695) no Hoare annotation was computed. [2023-11-06 22:30:15,707 INFO L899 garLoopResultBuilder]: For program point L4756-1(lines 4756 4761) no Hoare annotation was computed. [2023-11-06 22:30:15,707 INFO L899 garLoopResultBuilder]: For program point L4694-2(line 4694) no Hoare annotation was computed. [2023-11-06 22:30:15,708 INFO L895 garLoopResultBuilder]: At program point L4756(line 4756) the Hoare annotation is: (or (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= 0 |aws_linked_list_is_valid_~list#1.base|) (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base| 0)) (<= |#StackHeapBarrier| 0)) [2023-11-06 22:30:15,708 INFO L899 garLoopResultBuilder]: For program point L4694-8(lines 4694 4696) no Hoare annotation was computed. [2023-11-06 22:30:15,708 INFO L899 garLoopResultBuilder]: For program point L4694-5(lines 4694 4695) no Hoare annotation was computed. [2023-11-06 22:30:15,708 INFO L899 garLoopResultBuilder]: For program point L4694-6(lines 4694 4696) no Hoare annotation was computed. [2023-11-06 22:30:15,708 INFO L899 garLoopResultBuilder]: For program point L4694-11(lines 4694 4704) no Hoare annotation was computed. [2023-11-06 22:30:15,708 INFO L899 garLoopResultBuilder]: For program point L4694-9(lines 4694 4697) no Hoare annotation was computed. [2023-11-06 22:30:15,709 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_validEXIT(lines 4691 4708) no Hoare annotation was computed. [2023-11-06 22:30:15,709 INFO L895 garLoopResultBuilder]: At program point aws_linked_list_is_valid_deep_returnLabel#1(lines 4731 4765) the Hoare annotation is: (or (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#res#1| 0) (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= 0 |aws_linked_list_is_valid_~list#1.base|) (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base| 0)) (<= |#StackHeapBarrier| 0)) [2023-11-06 22:30:15,709 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 4691 4708) the Hoare annotation is: true [2023-11-06 22:30:15,709 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_validFINAL(lines 4691 4708) no Hoare annotation was computed. [2023-11-06 22:30:15,709 INFO L899 garLoopResultBuilder]: For program point L4750-3(lines 4750 4763) no Hoare annotation was computed. [2023-11-06 22:30:15,710 INFO L895 garLoopResultBuilder]: At program point L4750-2(lines 4750 4763) the Hoare annotation is: (or (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= 0 |aws_linked_list_is_valid_~list#1.base|) (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base| 0)) (<= |#StackHeapBarrier| 0)) [2023-11-06 22:30:15,713 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 22:30:15,716 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:30:15,729 ERROR L462 ceAbstractionStarter]: Failed to backtranslate (or (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= 0 |aws_linked_list_is_valid_~list#1.base|) (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base| 0)) (<= |#StackHeapBarrier| 0)) [2023-11-06 22:30:15,731 ERROR L462 ceAbstractionStarter]: Failed to backtranslate (or (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#res#1| 0) (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= 0 |aws_linked_list_is_valid_~list#1.base|) (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base| 0)) (<= |#StackHeapBarrier| 0)) [2023-11-06 22:30:15,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:30:15 BoogieIcfgContainer [2023-11-06 22:30:15,732 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:30:15,732 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:30:15,733 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:30:15,733 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:30:15,733 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:30:10" (3/4) ... [2023-11-06 22:30:15,736 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:30:15,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2023-11-06 22:30:15,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2023-11-06 22:30:15,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2023-11-06 22:30:15,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_insert_before [2023-11-06 22:30:15,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-06 22:30:15,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-06 22:30:15,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_is_valid [2023-11-06 22:30:15,750 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-06 22:30:15,751 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-06 22:30:15,751 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-06 22:30:15,752 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:30:15,860 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:30:15,860 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:30:15,860 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:30:15,861 INFO L158 Benchmark]: Toolchain (without parser) took 9809.23ms. Allocated memory was 138.4MB in the beginning and 249.6MB in the end (delta: 111.1MB). Free memory was 85.8MB in the beginning and 200.6MB in the end (delta: -114.9MB). Peak memory consumption was 137.1MB. Max. memory is 16.1GB. [2023-11-06 22:30:15,862 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 138.4MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:30:15,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2805.94ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 85.8MB in the beginning and 102.2MB in the end (delta: -16.4MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2023-11-06 22:30:15,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 204.68ms. Allocated memory is still 182.5MB. Free memory was 102.2MB in the beginning and 95.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:30:15,863 INFO L158 Benchmark]: Boogie Preprocessor took 95.66ms. Allocated memory is still 182.5MB. Free memory was 95.9MB in the beginning and 92.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:30:15,863 INFO L158 Benchmark]: RCFGBuilder took 929.00ms. Allocated memory is still 182.5MB. Free memory was 92.7MB in the beginning and 124.7MB in the end (delta: -31.9MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2023-11-06 22:30:15,864 INFO L158 Benchmark]: TraceAbstraction took 5632.96ms. Allocated memory was 182.5MB in the beginning and 249.6MB in the end (delta: 67.1MB). Free memory was 123.6MB in the beginning and 68.6MB in the end (delta: 55.0MB). Peak memory consumption was 122.1MB. Max. memory is 16.1GB. [2023-11-06 22:30:15,864 INFO L158 Benchmark]: Witness Printer took 128.10ms. Allocated memory is still 249.6MB. Free memory was 68.6MB in the beginning and 200.6MB in the end (delta: -132.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:30:15,867 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 138.4MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2805.94ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 85.8MB in the beginning and 102.2MB in the end (delta: -16.4MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 204.68ms. Allocated memory is still 182.5MB. Free memory was 102.2MB in the beginning and 95.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.66ms. Allocated memory is still 182.5MB. Free memory was 95.9MB in the beginning and 92.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 929.00ms. Allocated memory is still 182.5MB. Free memory was 92.7MB in the beginning and 124.7MB in the end (delta: -31.9MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5632.96ms. Allocated memory was 182.5MB in the beginning and 249.6MB in the end (delta: 67.1MB). Free memory was 123.6MB in the beginning and 68.6MB in the end (delta: 55.0MB). Peak memory consumption was 122.1MB. Max. memory is 16.1GB. * Witness Printer took 128.10ms. Allocated memory is still 249.6MB. Free memory was 68.6MB in the beginning and 200.6MB in the end (delta: -132.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 308 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 304 mSDsluCounter, 1988 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1587 mSDsCounter, 108 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 379 IncrementalHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 108 mSolverCounterUnsat, 401 mSDtfsCounter, 379 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 268 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 35, 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, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 194 PreInvPairs, 204 NumberOfFragments, 140 HoareAnnotationTreeSize, 194 FomulaSimplifications, 64 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 131 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 452 NumberOfCodeBlocks, 452 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 SizeOfPredicates, 9 NumberOfNonLiveVariables, 865 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 264/282 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: 7392]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4750]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 6767]: Loop Invariant Derived loop invariant: ((2 <= to_add) && !((list == 0))) - InvariantResult [Line: 4731]: Loop Invariant Derived loop invariant: NULL RESULT: Ultimate proved your program to be correct! [2023-11-06 22:30:15,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4432cf02-0bb8-45d9-b752-ca01d016141f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE