./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ --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 44162e1142387f3513ac3cf9af71d3c7aa6399e99cd364d08a07ceb8efc80a41 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:43:30,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:43:30,121 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 22:43:30,126 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:43:30,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:43:30,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:43:30,150 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:43:30,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:43:30,152 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:43:30,153 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:43:30,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:43:30,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:43:30,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:43:30,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:43:30,156 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:43:30,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:43:30,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:43:30,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:43:30,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:43:30,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:43:30,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:43:30,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:43:30,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:43:30,161 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:43:30,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:43:30,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:43:30,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:43:30,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:43:30,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:43:30,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:43:30,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:43:30,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:43:30,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:43:30,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:43:30,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:43:30,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:43:30,166 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:43:30,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:43:30,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:43:30,167 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_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44162e1142387f3513ac3cf9af71d3c7aa6399e99cd364d08a07ceb8efc80a41 [2023-11-23 22:43:30,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:43:30,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:43:30,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:43:30,511 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:43:30,512 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:43:30,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2023-11-23 22:43:33,536 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:43:34,135 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:43:34,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i [2023-11-23 22:43:34,181 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/data/ba036a7fb/57a13a090a644322825d52be321f6208/FLAG8a485f1a8 [2023-11-23 22:43:34,200 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/data/ba036a7fb/57a13a090a644322825d52be321f6208 [2023-11-23 22:43:34,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:43:34,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:43:34,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:43:34,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:43:34,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:43:34,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:34" (1/1) ... [2023-11-23 22:43:34,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c729a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:34, skipping insertion in model container [2023-11-23 22:43:34,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:43:34" (1/1) ... [2023-11-23 22:43:34,397 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:43:34,710 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_47cb0035-f27d-419f-a20c-a2466fd26581/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2023-11-23 22:43:34,721 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_47cb0035-f27d-419f-a20c-a2466fd26581/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2023-11-23 22:43:36,107 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,109 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,110 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,112 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,115 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,138 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,149 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,151 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,153 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,158 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,159 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,161 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:36,783 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 22:43:36,784 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 22:43:36,786 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 22:43:36,790 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 22:43:36,791 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 22:43:36,798 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 22:43:36,799 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 22:43:36,799 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 22:43:36,800 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 22:43:36,801 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 22:43:37,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,530 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,531 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,538 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,539 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,553 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,554 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,556 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,558 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,558 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,559 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,560 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:43:37,662 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:43:37,687 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_47cb0035-f27d-419f-a20c-a2466fd26581/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4496,4509] [2023-11-23 22:43:37,688 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_47cb0035-f27d-419f-a20c-a2466fd26581/sv-benchmarks/c/aws-c-common/aws_hash_table_foreach_harness.i[4556,4569] [2023-11-23 22:43:37,738 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,739 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,739 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,740 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,741 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,752 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,755 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,759 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,760 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,761 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,761 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,762 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,762 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:37,795 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 22:43:37,796 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 22:43:37,797 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 22:43:37,798 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 22:43:37,799 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 22:43:37,799 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 22:43:37,803 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 22:43:37,803 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 22:43:37,804 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 22:43:37,805 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 22:43:37,853 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2023-11-23 22:43:38,015 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,015 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,023 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,024 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,029 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,030 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,044 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,045 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,045 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,046 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,046 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,046 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,047 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 22:43:38,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:43:38,433 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,433 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,433 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,433 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,433 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,433 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,434 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,434 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,434 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,434 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,434 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,434 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,444 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,444 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,444 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,444 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,444 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,449 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:43:38,456 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:43:38,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38 WrapperNode [2023-11-23 22:43:38,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:43:38,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:43:38,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:43:38,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:43:38,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:38,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:38,695 INFO L138 Inliner]: procedures = 773, calls = 2436, calls flagged for inlining = 69, calls inlined = 18, statements flattened = 964 [2023-11-23 22:43:38,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:43:38,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:43:38,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:43:38,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:43:38,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:38,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:38,725 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:38,897 INFO L189 HeapSplitter]: Split 378 memory accesses to 9 slices as follows [2, 2, 5, 247, 2, 73, 44, 0, 3] [2023-11-23 22:43:38,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:38,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:38,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:38,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:39,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:39,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:39,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:43:39,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:43:39,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:43:39,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:43:39,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (1/1) ... [2023-11-23 22:43:39,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:43:39,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:39,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:43:39,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:43:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-23 22:43:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-23 22:43:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-23 22:43:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-23 22:43:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-23 22:43:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-23 22:43:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-23 22:43:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-23 22:43:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-23 22:43:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:43:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:43:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:43:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:43:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 22:43:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 22:43:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 22:43:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 22:43:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 22:43:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 22:43:39,151 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 22:43:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 22:43:39,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 22:43:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-23 22:43:39,151 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-23 22:43:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:43:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:43:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 22:43:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 22:43:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 22:43:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 22:43:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 22:43:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 22:43:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 22:43:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 22:43:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 22:43:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:43:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:43:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 22:43:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 22:43:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 22:43:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 22:43:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-23 22:43:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-23 22:43:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-23 22:43:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-23 22:43:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-23 22:43:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-23 22:43:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-23 22:43:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-23 22:43:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-11-23 22:43:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-23 22:43:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-23 22:43:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-23 22:43:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-23 22:43:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-23 22:43:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-23 22:43:39,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-23 22:43:39,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-23 22:43:39,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-11-23 22:43:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:43:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 22:43:39,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 22:43:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 22:43:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 22:43:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 22:43:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 22:43:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 22:43:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 22:43:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 22:43:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 22:43:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 22:43:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 22:43:39,158 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 22:43:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:43:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:43:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:43:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:43:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 22:43:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 22:43:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 22:43:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 22:43:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 22:43:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-23 22:43:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-23 22:43:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-11-23 22:43:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-11-23 22:43:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:43:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-23 22:43:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-23 22:43:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 22:43:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-11-23 22:43:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-11-23 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2023-11-23 22:43:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2023-11-23 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:43:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:43:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_int [2023-11-23 22:43:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_int [2023-11-23 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2023-11-23 22:43:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2023-11-23 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-23 22:43:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-23 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 22:43:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 22:43:39,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 22:43:39,163 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 22:43:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2023-11-23 22:43:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2023-11-23 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 22:43:39,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:43:39,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 22:43:39,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 22:43:39,719 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:43:39,723 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:43:40,053 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !true; [2023-11-23 22:43:40,053 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !true; [2023-11-23 22:43:41,149 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !true; [2023-11-23 22:43:41,221 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:43:41,354 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:43:41,355 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-11-23 22:43:41,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:41 BoogieIcfgContainer [2023-11-23 22:43:41,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:43:41,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:43:41,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:43:41,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:43:41,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:43:34" (1/3) ... [2023-11-23 22:43:41,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475f5ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:43:41, skipping insertion in model container [2023-11-23 22:43:41,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:43:38" (2/3) ... [2023-11-23 22:43:41,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@475f5ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:43:41, skipping insertion in model container [2023-11-23 22:43:41,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:43:41" (3/3) ... [2023-11-23 22:43:41,370 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_foreach_harness.i [2023-11-23 22:43:41,392 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:43:41,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:43:41,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:43:41,492 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;@5e5df675, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:43:41,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:43:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 269 states, 167 states have (on average 1.3592814371257484) internal successors, (227), 164 states have internal predecessors, (227), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-23 22:43:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-23 22:43:41,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:41,532 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:41,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:41,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:41,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1351277035, now seen corresponding path program 1 times [2023-11-23 22:43:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891945157] [2023-11-23 22:43:41,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:41,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:42,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:42,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891945157] [2023-11-23 22:43:42,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 22:43:42,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229111338] [2023-11-23 22:43:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:42,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:43:42,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:42,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:43:42,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:43:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:43,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 2530 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:43:43,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-23 22:43:43,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:43:43,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229111338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:43,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:43,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:43,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881023691] [2023-11-23 22:43:43,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:43,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:43:43,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:43,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:43:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:43:43,140 INFO L87 Difference]: Start difference. First operand has 269 states, 167 states have (on average 1.3592814371257484) internal successors, (227), 164 states have internal predecessors, (227), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 22:43:43,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:43,466 INFO L93 Difference]: Finished difference Result 532 states and 834 transitions. [2023-11-23 22:43:43,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:43:43,469 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2023-11-23 22:43:43,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:43,494 INFO L225 Difference]: With dead ends: 532 [2023-11-23 22:43:43,508 INFO L226 Difference]: Without dead ends: 267 [2023-11-23 22:43:43,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:43:43,521 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:43,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 346 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:43:43,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-23 22:43:43,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2023-11-23 22:43:43,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 162 states have (on average 1.308641975308642) internal successors, (212), 163 states have internal predecessors, (212), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-11-23 22:43:43,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 373 transitions. [2023-11-23 22:43:43,624 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 373 transitions. Word has length 112 [2023-11-23 22:43:43,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:43,625 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 373 transitions. [2023-11-23 22:43:43,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-23 22:43:43,625 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 373 transitions. [2023-11-23 22:43:43,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-23 22:43:43,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:43,630 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:43,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 22:43:43,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 22:43:43,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:43,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:43,850 INFO L85 PathProgramCache]: Analyzing trace with hash 926971508, now seen corresponding path program 1 times [2023-11-23 22:43:43,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:43,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547606641] [2023-11-23 22:43:43,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:43,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:44,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:43:44,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1583302861] [2023-11-23 22:43:44,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:44,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:43:44,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:44,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:43:44,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:43:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:44,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:43:44,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-23 22:43:45,136 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:43:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-23 22:43:45,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:45,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547606641] [2023-11-23 22:43:45,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:43:45,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583302861] [2023-11-23 22:43:45,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583302861] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 22:43:45,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:43:45,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2023-11-23 22:43:45,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116915112] [2023-11-23 22:43:45,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:45,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:43:45,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:45,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:43:45,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-23 22:43:45,483 INFO L87 Difference]: Start difference. First operand 267 states and 373 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-23 22:43:46,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:43:46,404 INFO L93 Difference]: Finished difference Result 488 states and 699 transitions. [2023-11-23 22:43:46,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:43:46,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 117 [2023-11-23 22:43:46,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:43:46,417 INFO L225 Difference]: With dead ends: 488 [2023-11-23 22:43:46,417 INFO L226 Difference]: Without dead ends: 283 [2023-11-23 22:43:46,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2023-11-23 22:43:46,427 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 397 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 22:43:46,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 1524 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 22:43:46,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-23 22:43:46,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-11-23 22:43:46,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 171 states have (on average 1.304093567251462) internal successors, (223), 173 states have internal predecessors, (223), 86 states have call successors, (86), 24 states have call predecessors, (86), 25 states have return successors, (92), 85 states have call predecessors, (92), 85 states have call successors, (92) [2023-11-23 22:43:46,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 401 transitions. [2023-11-23 22:43:46,499 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 401 transitions. Word has length 117 [2023-11-23 22:43:46,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:43:46,501 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 401 transitions. [2023-11-23 22:43:46,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-23 22:43:46,501 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 401 transitions. [2023-11-23 22:43:46,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-23 22:43:46,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:43:46,513 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:46,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:43:46,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:43:46,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:43:46,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:46,741 INFO L85 PathProgramCache]: Analyzing trace with hash -879502973, now seen corresponding path program 1 times [2023-11-23 22:43:46,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:46,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649880362] [2023-11-23 22:43:46,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:46,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:46,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:43:46,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166856579] [2023-11-23 22:43:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:46,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:43:46,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:43:46,863 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:43:46,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:43:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:47,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-23 22:43:47,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:43:47,721 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 22 treesize of output 1 [2023-11-23 22:43:48,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 11 [2023-11-23 22:43:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-23 22:43:48,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:43:48,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:48,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649880362] [2023-11-23 22:43:48,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:43:48,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166856579] [2023-11-23 22:43:48,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166856579] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:48,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:48,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 22:43:48,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611432190] [2023-11-23 22:43:48,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:48,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:43:48,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:48,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:43:48,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:43:48,229 INFO L87 Difference]: Start difference. First operand 283 states and 401 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-23 22:43:51,265 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] [2023-11-23 22:43:53,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:43:55,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:43:57,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:43:59,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:01,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:03,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:05,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:09,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:11,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:14,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:16,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:18,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:20,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:22,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:24,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:26,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:44:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:44:26,650 INFO L93 Difference]: Finished difference Result 678 states and 979 transitions. [2023-11-23 22:44:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 22:44:26,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) Word has length 118 [2023-11-23 22:44:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:44:26,663 INFO L225 Difference]: With dead ends: 678 [2023-11-23 22:44:26,663 INFO L226 Difference]: Without dead ends: 467 [2023-11-23 22:44:26,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2023-11-23 22:44:26,666 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 356 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 72 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:44:26,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 2666 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1359 Invalid, 17 Unknown, 0 Unchecked, 38.1s Time] [2023-11-23 22:44:26,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-11-23 22:44:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 453. [2023-11-23 22:44:26,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 277 states have (on average 1.3249097472924187) internal successors, (367), 282 states have internal predecessors, (367), 137 states have call successors, (137), 38 states have call predecessors, (137), 38 states have return successors, (139), 132 states have call predecessors, (139), 135 states have call successors, (139) [2023-11-23 22:44:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 643 transitions. [2023-11-23 22:44:26,789 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 643 transitions. Word has length 118 [2023-11-23 22:44:26,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:44:26,791 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 643 transitions. [2023-11-23 22:44:26,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-23 22:44:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 643 transitions. [2023-11-23 22:44:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-23 22:44:26,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:44:26,796 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:44:26,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:44:27,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:44:27,025 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:44:27,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:44:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash 158677619, now seen corresponding path program 1 times [2023-11-23 22:44:27,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:44:27,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697022430] [2023-11-23 22:44:27,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:44:27,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:44:27,255 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:44:27,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636529016] [2023-11-23 22:44:27,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:44:27,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:44:27,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:44:27,257 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:44:27,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:44:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:28,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 2589 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:44:28,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:44:28,189 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-23 22:44:28,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:44:28,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:44:28,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697022430] [2023-11-23 22:44:28,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:44:28,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636529016] [2023-11-23 22:44:28,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636529016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:44:28,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:44:28,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:44:28,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772720808] [2023-11-23 22:44:28,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:44:28,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:44:28,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:44:28,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:44:28,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:44:28,199 INFO L87 Difference]: Start difference. First operand 453 states and 643 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 22:44:28,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:44:28,714 INFO L93 Difference]: Finished difference Result 873 states and 1246 transitions. [2023-11-23 22:44:28,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:44:28,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 126 [2023-11-23 22:44:28,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:44:28,723 INFO L225 Difference]: With dead ends: 873 [2023-11-23 22:44:28,724 INFO L226 Difference]: Without dead ends: 457 [2023-11-23 22:44:28,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:44:28,731 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:44:28,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1368 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:44:28,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-23 22:44:28,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2023-11-23 22:44:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 280 states have (on average 1.3214285714285714) internal successors, (370), 285 states have internal predecessors, (370), 137 states have call successors, (137), 38 states have call predecessors, (137), 39 states have return successors, (140), 133 states have call predecessors, (140), 135 states have call successors, (140) [2023-11-23 22:44:28,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 647 transitions. [2023-11-23 22:44:28,823 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 647 transitions. Word has length 126 [2023-11-23 22:44:28,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:44:28,824 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 647 transitions. [2023-11-23 22:44:28,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 22:44:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 647 transitions. [2023-11-23 22:44:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-23 22:44:28,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:44:28,831 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:44:28,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:44:29,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47cb0035-f27d-419f-a20c-a2466fd26581/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:44:29,044 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:44:29,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:44:29,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1565161752, now seen corresponding path program 1 times [2023-11-23 22:44:29,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:44:29,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105840022] [2023-11-23 22:44:29,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:44:29,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:44:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:31,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:44:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:31,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:44:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:31,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:44:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:31,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:44:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:31,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 22:44:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:44:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:44:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:44:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 22:44:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:32,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 22:44:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:32,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 22:44:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:44:32,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 22:44:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat