./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b2aa49e297f60cfce052f243c4868c3f21a4b7a15679d0734b9f9fae5c35ea17 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:25,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:26,082 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 21:00:26,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:26,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:26,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:26,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:26,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:26,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:26,130 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:26,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:26,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:26,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:26,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:26,134 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:26,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:26,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:26,136 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:00:26,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:26,137 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:26,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:26,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:26,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:26,139 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:26,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:26,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:26,141 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:00:26,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:26,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:26,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:26,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:26,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:26,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:00:26,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:00:26,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:26,145 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:26,145 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:26,145 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:26,145 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:26,146 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_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2aa49e297f60cfce052f243c4868c3f21a4b7a15679d0734b9f9fae5c35ea17 [2023-11-21 21:00:26,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:26,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:26,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:26,509 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:26,510 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:26,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2023-11-21 21:00:29,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:30,190 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:30,190 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2023-11-21 21:00:30,245 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/data/c39e0b53f/9cd7de4c464a40a7a79f68b215750574/FLAG57943d666 [2023-11-21 21:00:30,267 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/data/c39e0b53f/9cd7de4c464a40a7a79f68b215750574 [2023-11-21 21:00:30,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:30,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:30,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:30,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:30,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:30,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab446c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:30, skipping insertion in model container [2023-11-21 21:00:30,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:30" (1/1) ... [2023-11-21 21:00:30,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:30,769 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_10982c19-12f7-415a-906c-57a74119f567/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2023-11-21 21:00:30,779 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_10982c19-12f7-415a-906c-57a74119f567/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2023-11-21 21:00:32,027 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,032 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,033 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,035 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,038 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,072 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,073 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,077 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,079 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,091 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,093 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,096 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,097 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:32,645 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 21:00:32,650 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 21:00:32,654 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 21:00:32,659 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 21:00:32,660 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 21:00:32,665 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 21:00:32,666 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 21:00:32,668 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 21:00:32,668 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 21:00:32,669 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 21:00:33,373 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,412 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,414 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,422 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,422 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,494 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,495 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,496 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,498 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,498 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,499 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,501 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:33,634 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:33,657 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_10982c19-12f7-415a-906c-57a74119f567/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2023-11-21 21:00:33,657 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_10982c19-12f7-415a-906c-57a74119f567/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2023-11-21 21:00:33,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,718 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,719 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,732 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,734 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,735 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,736 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,737 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,737 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,738 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,738 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,777 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 21:00:33,778 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 21:00:33,779 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 21:00:33,780 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 21:00:33,781 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 21:00:33,782 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 21:00:33,783 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 21:00:33,784 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 21:00:33,784 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 21:00:33,785 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 21:00:33,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2023-11-21 21:00:33,953 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,954 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,961 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,963 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,967 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,967 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,985 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:33,985 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 21:00:34,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:34,379 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,379 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,379 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,380 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,380 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,380 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,380 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,380 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,380 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,381 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,381 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,381 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,381 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,381 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,381 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,381 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,382 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,382 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:34,390 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:34,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34 WrapperNode [2023-11-21 21:00:34,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:34,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:34,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:34,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:34,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,618 INFO L138 Inliner]: procedures = 772, calls = 2456, calls flagged for inlining = 69, calls inlined = 20, statements flattened = 860 [2023-11-21 21:00:34,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:34,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:34,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:34,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:34,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,660 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,799 INFO L187 HeapSplitter]: Split 316 memory accesses to 13 slices as follows [2, 36, 4, 3, 5, 236, 2, 6, 3, 9, 6, 3, 1] [2023-11-21 21:00:34,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,844 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:34,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:34,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:34,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:34,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (1/1) ... [2023-11-21 21:00:34,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:34,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:34,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:34,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-21 21:00:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-21 21:00:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-21 21:00:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-21 21:00:35,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-21 21:00:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-21 21:00:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-21 21:00:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-21 21:00:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-21 21:00:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2023-11-21 21:00:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2023-11-21 21:00:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2023-11-21 21:00:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2023-11-21 21:00:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 21:00:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 21:00:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 21:00:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 21:00:35,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 21:00:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 21:00:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 21:00:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 21:00:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-21 21:00:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-21 21:00:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-21 21:00:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-21 21:00:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-21 21:00:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-21 21:00:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-21 21:00:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 21:00:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 21:00:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-21 21:00:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-21 21:00:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 21:00:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 21:00:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 21:00:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 21:00:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 21:00:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 21:00:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 21:00:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 21:00:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 21:00:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-21 21:00:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-21 21:00:35,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-21 21:00:35,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-21 21:00:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-21 21:00:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 21:00:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 21:00:35,013 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-21 21:00:35,014 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-21 21:00:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-21 21:00:35,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-21 21:00:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 21:00:35,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 21:00:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 21:00:35,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 21:00:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 21:00:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 21:00:35,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 21:00:35,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 21:00:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-21 21:00:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-21 21:00:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-21 21:00:35,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-21 21:00:35,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-21 21:00:35,028 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-21 21:00:35,028 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-21 21:00:35,028 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_find [2023-11-21 21:00:35,028 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_find [2023-11-21 21:00:35,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 21:00:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 21:00:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 21:00:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 21:00:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 21:00:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 21:00:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 21:00:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 21:00:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-21 21:00:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-21 21:00:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-21 21:00:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-21 21:00:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-21 21:00:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2023-11-21 21:00:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2023-11-21 21:00:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-21 21:00:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-21 21:00:35,031 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2023-11-21 21:00:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2023-11-21 21:00:35,031 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-11-21 21:00:35,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-11-21 21:00:35,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:35,031 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-21 21:00:35,032 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-21 21:00:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-11-21 21:00:35,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-11-21 21:00:35,032 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2023-11-21 21:00:35,032 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2023-11-21 21:00:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2023-11-21 21:00:35,033 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2023-11-21 21:00:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 21:00:35,033 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 21:00:35,033 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-21 21:00:35,034 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-21 21:00:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 21:00:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 21:00:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 21:00:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 21:00:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 21:00:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 21:00:35,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 21:00:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 21:00:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-21 21:00:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-21 21:00:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-21 21:00:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-21 21:00:35,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-21 21:00:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-21 21:00:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-21 21:00:35,036 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-21 21:00:35,036 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-21 21:00:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2023-11-21 21:00:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2023-11-21 21:00:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 21:00:35,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 21:00:35,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:00:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 21:00:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 21:00:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 21:00:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 21:00:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 21:00:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 21:00:35,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 21:00:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 21:00:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 21:00:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 21:00:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 21:00:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 21:00:35,541 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:35,544 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:35,601 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2023-11-21 21:00:35,882 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !true; [2023-11-21 21:00:35,928 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-11-21 21:00:36,796 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:37,074 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:37,074 INFO L308 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-21 21:00:37,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:37 BoogieIcfgContainer [2023-11-21 21:00:37,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:37,079 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:37,079 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:37,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:37,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:30" (1/3) ... [2023-11-21 21:00:37,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ba774b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:37, skipping insertion in model container [2023-11-21 21:00:37,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:34" (2/3) ... [2023-11-21 21:00:37,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ba774b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:37, skipping insertion in model container [2023-11-21 21:00:37,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:37" (3/3) ... [2023-11-21 21:00:37,086 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_find_harness.i [2023-11-21 21:00:37,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:37,108 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:00:37,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:37,176 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69b8fa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:37,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:00:37,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 109 states have internal predecessors, (134), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-21 21:00:37,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-21 21:00:37,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:37,202 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:37,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:37,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash -74533930, now seen corresponding path program 1 times [2023-11-21 21:00:37,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:37,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130648345] [2023-11-21 21:00:37,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:37,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:37,815 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 21:00:37,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236228176] [2023-11-21 21:00:37,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:37,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:00:37,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:37,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:00:37,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 21:00:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:38,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 3070 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-21 21:00:38,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-21 21:00:39,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:00:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-11-21 21:00:39,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:39,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130648345] [2023-11-21 21:00:39,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 21:00:39,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236228176] [2023-11-21 21:00:39,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236228176] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-21 21:00:39,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:00:39,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-11-21 21:00:39,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578487834] [2023-11-21 21:00:39,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:39,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:00:39,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:39,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:00:39,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-21 21:00:39,381 INFO L87 Difference]: Start difference. First operand has 200 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 109 states have internal predecessors, (134), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-21 21:00:39,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:39,915 INFO L93 Difference]: Finished difference Result 320 states and 449 transitions. [2023-11-21 21:00:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:00:39,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 131 [2023-11-21 21:00:39,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:39,931 INFO L225 Difference]: With dead ends: 320 [2023-11-21 21:00:39,931 INFO L226 Difference]: Without dead ends: 202 [2023-11-21 21:00:39,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-21 21:00:39,940 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 6 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:39,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 896 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 21:00:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-11-21 21:00:39,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2023-11-21 21:00:40,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 110 states have (on average 1.190909090909091) internal successors, (131), 111 states have internal predecessors, (131), 68 states have call successors, (68), 23 states have call predecessors, (68), 23 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-21 21:00:40,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 266 transitions. [2023-11-21 21:00:40,005 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 266 transitions. Word has length 131 [2023-11-21 21:00:40,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:40,007 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 266 transitions. [2023-11-21 21:00:40,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2023-11-21 21:00:40,008 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 266 transitions. [2023-11-21 21:00:40,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-21 21:00:40,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:40,012 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:40,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:40,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 21:00:40,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:40,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:40,221 INFO L85 PathProgramCache]: Analyzing trace with hash -771032456, now seen corresponding path program 1 times [2023-11-21 21:00:40,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:40,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602546469] [2023-11-21 21:00:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:40,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:40,418 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 21:00:40,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747402450] [2023-11-21 21:00:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:40,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:00:40,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:40,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:00:40,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 21:00:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:41,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 21:00:41,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-21 21:00:41,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:00:41,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:41,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602546469] [2023-11-21 21:00:41,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 21:00:41,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747402450] [2023-11-21 21:00:41,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747402450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:41,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:41,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:00:41,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817580970] [2023-11-21 21:00:41,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:41,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:00:41,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:41,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:00:41,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:00:41,336 INFO L87 Difference]: Start difference. First operand 202 states and 266 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-21 21:00:41,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:41,765 INFO L93 Difference]: Finished difference Result 400 states and 526 transitions. [2023-11-21 21:00:41,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 21:00:41,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 140 [2023-11-21 21:00:41,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:41,769 INFO L225 Difference]: With dead ends: 400 [2023-11-21 21:00:41,770 INFO L226 Difference]: Without dead ends: 206 [2023-11-21 21:00:41,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:00:41,773 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:41,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 908 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 21:00:41,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-11-21 21:00:41,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2023-11-21 21:00:41,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 113 states have (on average 1.1858407079646018) internal successors, (134), 114 states have internal predecessors, (134), 68 states have call successors, (68), 23 states have call predecessors, (68), 24 states have return successors, (68), 68 states have call predecessors, (68), 67 states have call successors, (68) [2023-11-21 21:00:41,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 270 transitions. [2023-11-21 21:00:41,856 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 270 transitions. Word has length 140 [2023-11-21 21:00:41,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:41,857 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 270 transitions. [2023-11-21 21:00:41,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-21 21:00:41,857 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 270 transitions. [2023-11-21 21:00:41,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-21 21:00:41,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:41,864 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:41,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-21 21:00:42,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:00:42,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:42,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:42,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1265513602, now seen corresponding path program 1 times [2023-11-21 21:00:42,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:42,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205909027] [2023-11-21 21:00:42,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:42,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 21:00:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 21:00:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 21:00:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 21:00:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 21:00:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-21 21:00:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 21:00:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 21:00:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 21:00:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 21:00:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-21 21:00:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-21 21:00:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 21:00:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 21:00:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 21:00:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-21 21:00:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-21 21:00:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-21 21:00:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-21 21:00:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-21 21:00:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-21 21:00:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-21 21:00:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-21 21:00:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-21 21:00:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-21 21:00:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-21 21:00:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-21 21:00:46,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:46,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205909027] [2023-11-21 21:00:46,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205909027] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:00:46,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840838945] [2023-11-21 21:00:46,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:46,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:00:46,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:46,503 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:00:46,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 21:00:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:47,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-21 21:00:47,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:47,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 21:00:48,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-11-21 21:00:49,010 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-21 21:00:49,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:00:49,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840838945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:49,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:00:49,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [11] total 23 [2023-11-21 21:00:49,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183131408] [2023-11-21 21:00:49,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:49,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-21 21:00:49,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:49,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-21 21:00:49,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2023-11-21 21:00:49,014 INFO L87 Difference]: Start difference. First operand 206 states and 270 transitions. Second operand has 15 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 8 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-11-21 21:00:51,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 21:00:53,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 21:00:55,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 21:00:57,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 21:00:59,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 21:01:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:01:01,980 INFO L93 Difference]: Finished difference Result 368 states and 473 transitions. [2023-11-21 21:01:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 21:01:01,981 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 8 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 148 [2023-11-21 21:01:01,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:01:01,985 INFO L225 Difference]: With dead ends: 368 [2023-11-21 21:01:01,985 INFO L226 Difference]: Without dead ends: 246 [2023-11-21 21:01:01,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 172 SyntacticMatches, 25 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=117, Invalid=875, Unknown=0, NotChecked=0, Total=992 [2023-11-21 21:01:01,988 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 244 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 224 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-11-21 21:01:01,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1055 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2048 Invalid, 5 Unknown, 0 Unchecked, 12.6s Time] [2023-11-21 21:01:01,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-21 21:01:02,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2023-11-21 21:01:02,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 136 states have (on average 1.1764705882352942) internal successors, (160), 138 states have internal predecessors, (160), 74 states have call successors, (74), 32 states have call predecessors, (74), 35 states have return successors, (78), 75 states have call predecessors, (78), 73 states have call successors, (78) [2023-11-21 21:01:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 312 transitions. [2023-11-21 21:01:02,049 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 312 transitions. Word has length 148 [2023-11-21 21:01:02,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:01:02,053 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 312 transitions. [2023-11-21 21:01:02,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 8 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2023-11-21 21:01:02,053 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 312 transitions. [2023-11-21 21:01:02,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-21 21:01:02,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:01:02,062 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:02,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:02,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:01:02,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:01:02,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:02,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1405763676, now seen corresponding path program 1 times [2023-11-21 21:01:02,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:02,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26844413] [2023-11-21 21:01:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:02,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:04,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 21:01:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 21:01:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 21:01:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-21 21:01:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:04,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:04,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:04,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 21:01:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-21 21:01:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-21 21:01:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 21:01:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 21:01:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 21:01:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-21 21:01:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-21 21:01:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 21:01:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 21:01:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:01:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 21:01:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-21 21:01:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-21 21:01:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-21 21:01:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-21 21:01:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-21 21:01:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-21 21:01:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-21 21:01:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-21 21:01:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 21:01:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-21 21:01:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-21 21:01:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-21 21:01:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-11-21 21:01:05,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:05,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26844413] [2023-11-21 21:01:05,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26844413] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:01:05,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250477488] [2023-11-21 21:01:05,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:05,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:01:05,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:05,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:01:05,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10982c19-12f7-415a-906c-57a74119f567/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 21:01:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:06,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 3127 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-21 21:01:06,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:01:06,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-21 21:01:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-21 21:01:08,477 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:01:08,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250477488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:08,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 21:01:08,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 20 [2023-11-21 21:01:08,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170723198] [2023-11-21 21:01:08,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:08,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 21:01:08,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:08,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 21:01:08,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2023-11-21 21:01:08,480 INFO L87 Difference]: Start difference. First operand 246 states and 312 transitions. Second operand has 12 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (36), 5 states have call predecessors, (36), 6 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2023-11-21 21:01:11,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 21:01:13,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 21:01:15,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 21:01:17,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 21:01:19,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]