./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 418444d45b0c7850a9989314dcd5f57e0b0ef1cb83134fc862bc4bb0b0db0821 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:46,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:46,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:25:46,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:46,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:46,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:46,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:46,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:46,405 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:46,405 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:46,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:46,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:46,407 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:46,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:46,409 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:46,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:46,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:46,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:25:46,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:46,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:46,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:46,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:46,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:46,414 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:46,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:46,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:46,416 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:46,416 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:46,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:46,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:46,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:46,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:46,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:25:46,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:25:46,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:46,421 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:46,421 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:46,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:46,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:46,423 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_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 418444d45b0c7850a9989314dcd5f57e0b0ef1cb83134fc862bc4bb0b0db0821 [2023-11-21 22:25:46,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:46,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:46,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:46,755 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:46,756 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:46,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness_negated.i [2023-11-21 22:25:49,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:50,572 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:50,573 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness_negated.i [2023-11-21 22:25:50,620 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/data/0dda470bd/59ed97635fe14fecbb39f81a363e3b1b/FLAGb28aeaf49 [2023-11-21 22:25:50,636 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/data/0dda470bd/59ed97635fe14fecbb39f81a363e3b1b [2023-11-21 22:25:50,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:50,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:50,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:50,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:50,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:50,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:50" (1/1) ... [2023-11-21 22:25:50,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a0f2c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:50, skipping insertion in model container [2023-11-21 22:25:50,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:50" (1/1) ... [2023-11-21 22:25:50,802 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:51,184 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_82780a8b-81bd-4121-a943-ba8725b99de9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness_negated.i[4491,4504] [2023-11-21 22:25:51,195 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_82780a8b-81bd-4121-a943-ba8725b99de9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness_negated.i[4551,4564] [2023-11-21 22:25:52,520 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,524 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,524 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,525 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,527 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,573 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,574 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,577 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,578 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,588 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,593 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,594 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:52,606 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:53,221 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 22:25:53,233 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 22:25:53,235 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 22:25:53,237 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 22:25:53,238 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 22:25:53,239 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 22:25:53,240 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 22:25:53,241 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 22:25:53,242 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 22:25:53,243 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 22:25:54,006 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,006 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,047 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,048 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,055 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,055 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,079 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,080 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,081 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,082 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,083 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,084 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,085 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:54,210 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:54,239 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_82780a8b-81bd-4121-a943-ba8725b99de9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness_negated.i[4491,4504] [2023-11-21 22:25:54,241 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_82780a8b-81bd-4121-a943-ba8725b99de9/sv-benchmarks/c/aws-c-common/aws_hash_table_eq_harness_negated.i[4551,4564] [2023-11-21 22:25:54,305 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,306 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,306 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,307 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,308 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,326 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,330 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,333 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,334 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,337 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,388 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 22:25:54,395 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 22:25:54,396 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 22:25:54,398 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 22:25:54,400 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 22:25:54,401 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 22:25:54,402 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 22:25:54,403 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 22:25:54,403 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 22:25:54,404 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 22:25:54,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2023-11-21 22:25:54,580 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,580 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,588 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,589 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,595 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,595 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,610 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,611 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,612 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,612 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,614 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:54,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:55,073 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,073 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,073 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,074 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,074 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,074 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,074 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,074 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,075 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,075 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,075 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,075 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,076 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,076 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,076 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,076 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,076 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,076 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:55,084 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:55,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55 WrapperNode [2023-11-21 22:25:55,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:55,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:55,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:55,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:55,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,389 INFO L138 Inliner]: procedures = 772, calls = 2456, calls flagged for inlining = 68, calls inlined = 18, statements flattened = 968 [2023-11-21 22:25:55,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:55,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:55,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:55,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:55,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,428 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,571 INFO L187 HeapSplitter]: Split 321 memory accesses to 12 slices as follows [13, 2, 3, 5, 236, 5, 3, 4, 39, 6, 2, 3] [2023-11-21 22:25:55,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,573 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:55,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:55,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:55,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:55,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (1/1) ... [2023-11-21 22:25:55,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:55,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:55,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:55,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-21 22:25:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-21 22:25:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-21 22:25:55,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-21 22:25:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-21 22:25:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-21 22:25:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-21 22:25:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-21 22:25:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-21 22:25:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2023-11-21 22:25:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2023-11-21 22:25:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2023-11-21 22:25:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2023-11-21 22:25:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2023-11-21 22:25:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:25:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:25:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:25:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:25:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 22:25:55,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 22:25:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 22:25:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 22:25:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-21 22:25:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-21 22:25:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-21 22:25:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-21 22:25:55,821 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-21 22:25:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-21 22:25:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:25:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:25:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-21 22:25:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-21 22:25:55,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:25:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 22:25:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 22:25:55,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 22:25:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 22:25:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 22:25:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 22:25:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 22:25:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 22:25:55,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-21 22:25:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-21 22:25:55,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-21 22:25:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-21 22:25:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:55,826 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 22:25:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 22:25:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-21 22:25:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-21 22:25:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:25:55,827 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-21 22:25:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-21 22:25:55,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 22:25:55,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 22:25:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 22:25:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 22:25:55,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 22:25:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 22:25:55,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 22:25:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 22:25:55,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-21 22:25:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-21 22:25:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-21 22:25:55,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-21 22:25:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-21 22:25:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-21 22:25:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:25:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:25:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:25:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:25:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 22:25:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 22:25:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 22:25:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 22:25:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-21 22:25:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-21 22:25:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-21 22:25:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-21 22:25:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2023-11-21 22:25:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2023-11-21 22:25:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-21 22:25:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-21 22:25:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2023-11-21 22:25:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2023-11-21 22:25:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-11-21 22:25:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-11-21 22:25:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:25:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_get_entry_count [2023-11-21 22:25:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_get_entry_count [2023-11-21 22:25:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-21 22:25:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-21 22:25:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-11-21 22:25:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-11-21 22:25:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2023-11-21 22:25:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2023-11-21 22:25:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2023-11-21 22:25:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2023-11-21 22:25:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:25:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:25:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-21 22:25:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-21 22:25:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 22:25:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 22:25:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 22:25:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 22:25:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 22:25:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 22:25:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 22:25:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 22:25:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-21 22:25:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-21 22:25:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-21 22:25:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-21 22:25:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2023-11-21 22:25:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2023-11-21 22:25:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-21 22:25:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-21 22:25:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-21 22:25:55,851 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-21 22:25:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2023-11-21 22:25:55,851 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2023-11-21 22:25:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 22:25:55,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 22:25:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:25:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:25:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:25:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:25:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:25:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:25:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:25:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:25:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 22:25:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 22:25:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 22:25:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 22:25:56,435 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:56,439 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:56,533 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2023-11-21 22:25:56,835 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-11-21 22:25:57,818 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !true; [2023-11-21 22:25:57,818 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !true; [2023-11-21 22:25:57,818 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-11-21 22:25:57,818 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume !true; [2023-11-21 22:25:57,818 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##51: assume !true; [2023-11-21 22:25:57,844 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:58,106 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:58,106 INFO L308 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-21 22:25:58,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:58 BoogieIcfgContainer [2023-11-21 22:25:58,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:58,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:58,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:58,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:58,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:50" (1/3) ... [2023-11-21 22:25:58,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227cbcd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:58, skipping insertion in model container [2023-11-21 22:25:58,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:55" (2/3) ... [2023-11-21 22:25:58,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227cbcd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:58, skipping insertion in model container [2023-11-21 22:25:58,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:58" (3/3) ... [2023-11-21 22:25:58,118 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_eq_harness_negated.i [2023-11-21 22:25:58,138 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:58,138 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:25:58,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:58,201 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;@1d67c138, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:58,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:25:58,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 134 states have internal predecessors, (171), 89 states have call successors, (89), 24 states have call predecessors, (89), 24 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-21 22:25:58,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-21 22:25:58,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:58,229 INFO L195 NwaCegarLoop]: trace histogram [17, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:58,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:58,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:58,235 INFO L85 PathProgramCache]: Analyzing trace with hash 305170401, now seen corresponding path program 1 times [2023-11-21 22:25:58,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:58,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850367858] [2023-11-21 22:25:58,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:58,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:58,893 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:25:58,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389630518] [2023-11-21 22:25:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:58,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:58,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:58,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:25:58,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:26:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:00,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 4210 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 22:26:00,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:00,507 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-21 22:26:00,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:00,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:00,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850367858] [2023-11-21 22:26:00,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:26:00,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389630518] [2023-11-21 22:26:00,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389630518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:00,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:00,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:00,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090643856] [2023-11-21 22:26:00,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:00,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:26:00,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:00,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:26:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:26:00,565 INFO L87 Difference]: Start difference. First operand has 248 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 134 states have internal predecessors, (171), 89 states have call successors, (89), 24 states have call predecessors, (89), 24 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 7 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-21 22:26:01,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:01,574 INFO L93 Difference]: Finished difference Result 409 states and 602 transitions. [2023-11-21 22:26:01,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:26:01,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 213 [2023-11-21 22:26:01,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:01,603 INFO L225 Difference]: With dead ends: 409 [2023-11-21 22:26:01,604 INFO L226 Difference]: Without dead ends: 253 [2023-11-21 22:26:01,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:26:01,624 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 47 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:01,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1561 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-21 22:26:01,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-21 22:26:01,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 251. [2023-11-21 22:26:01,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 135 states have (on average 1.2074074074074075) internal successors, (163), 137 states have internal predecessors, (163), 90 states have call successors, (90), 25 states have call predecessors, (90), 25 states have return successors, (89), 88 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-21 22:26:01,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 342 transitions. [2023-11-21 22:26:01,740 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 342 transitions. Word has length 213 [2023-11-21 22:26:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:01,744 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 342 transitions. [2023-11-21 22:26:01,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-21 22:26:01,745 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 342 transitions. [2023-11-21 22:26:01,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-21 22:26:01,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:01,759 INFO L195 NwaCegarLoop]: trace histogram [17, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:01,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 22:26:01,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:26:01,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:01,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:01,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1957204231, now seen corresponding path program 1 times [2023-11-21 22:26:01,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:01,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451565429] [2023-11-21 22:26:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:01,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:02,205 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:26:02,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049623081] [2023-11-21 22:26:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:02,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:26:02,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:26:02,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:26:02,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:26:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:03,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 4221 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 22:26:03,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-21 22:26:03,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:03,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:03,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451565429] [2023-11-21 22:26:03,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:26:03,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049623081] [2023-11-21 22:26:03,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049623081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:03,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:03,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:26:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983380097] [2023-11-21 22:26:03,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:03,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:26:03,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:03,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:26:03,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:26:03,535 INFO L87 Difference]: Start difference. First operand 251 states and 342 transitions. Second operand has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-21 22:26:04,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:04,377 INFO L93 Difference]: Finished difference Result 260 states and 351 transitions. [2023-11-21 22:26:04,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:26:04,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 217 [2023-11-21 22:26:04,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:04,383 INFO L225 Difference]: With dead ends: 260 [2023-11-21 22:26:04,383 INFO L226 Difference]: Without dead ends: 258 [2023-11-21 22:26:04,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:26:04,385 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 47 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:04,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1555 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-21 22:26:04,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-11-21 22:26:04,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 256. [2023-11-21 22:26:04,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 138 states have (on average 1.2028985507246377) internal successors, (166), 141 states have internal predecessors, (166), 91 states have call successors, (91), 26 states have call predecessors, (91), 26 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-21 22:26:04,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 347 transitions. [2023-11-21 22:26:04,413 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 347 transitions. Word has length 217 [2023-11-21 22:26:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:04,414 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 347 transitions. [2023-11-21 22:26:04,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-21 22:26:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 347 transitions. [2023-11-21 22:26:04,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-21 22:26:04,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:04,419 INFO L195 NwaCegarLoop]: trace histogram [17, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:04,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:26:04,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:26:04,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:04,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:04,645 INFO L85 PathProgramCache]: Analyzing trace with hash -503381225, now seen corresponding path program 1 times [2023-11-21 22:26:04,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:04,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44270348] [2023-11-21 22:26:04,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:04,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:04,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:26:04,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590328527] [2023-11-21 22:26:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:04,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:26:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:26:04,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:26:04,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:26:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:05,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 4229 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-21 22:26:05,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:06,100 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-11-21 22:26:06,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:06,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:06,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44270348] [2023-11-21 22:26:06,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:26:06,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590328527] [2023-11-21 22:26:06,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590328527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:06,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:06,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-21 22:26:06,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962724673] [2023-11-21 22:26:06,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:06,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:26:06,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:06,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:26:06,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:26:06,104 INFO L87 Difference]: Start difference. First operand 256 states and 347 transitions. Second operand has 10 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-21 22:26:07,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:07,233 INFO L93 Difference]: Finished difference Result 269 states and 377 transitions. [2023-11-21 22:26:07,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:26:07,234 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 219 [2023-11-21 22:26:07,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:07,238 INFO L225 Difference]: With dead ends: 269 [2023-11-21 22:26:07,238 INFO L226 Difference]: Without dead ends: 267 [2023-11-21 22:26:07,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:26:07,239 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 49 mSDsluCounter, 2118 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:07,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 2401 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:26:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-21 22:26:07,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 259. [2023-11-21 22:26:07,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 140 states have (on average 1.2) internal successors, (168), 143 states have internal predecessors, (168), 91 states have call successors, (91), 26 states have call predecessors, (91), 27 states have return successors, (108), 89 states have call predecessors, (108), 90 states have call successors, (108) [2023-11-21 22:26:07,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 367 transitions. [2023-11-21 22:26:07,268 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 367 transitions. Word has length 219 [2023-11-21 22:26:07,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:07,269 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 367 transitions. [2023-11-21 22:26:07,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-21 22:26:07,270 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 367 transitions. [2023-11-21 22:26:07,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-21 22:26:07,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:07,274 INFO L195 NwaCegarLoop]: trace histogram [17, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:07,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:26:07,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:26:07,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:07,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1202456572, now seen corresponding path program 1 times [2023-11-21 22:26:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:07,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834599848] [2023-11-21 22:26:07,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:07,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:07,660 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:26:07,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196179516] [2023-11-21 22:26:07,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:07,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:26:07,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:26:07,662 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:26:07,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:26:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:08,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 4253 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-21 22:26:08,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-11-21 22:26:08,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:26:08,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:08,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834599848] [2023-11-21 22:26:08,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:26:08,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196179516] [2023-11-21 22:26:08,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196179516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:26:08,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:26:08,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-21 22:26:08,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747660433] [2023-11-21 22:26:08,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:26:08,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:26:08,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:08,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:26:08,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:26:08,896 INFO L87 Difference]: Start difference. First operand 259 states and 367 transitions. Second operand has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-21 22:26:10,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:26:10,042 INFO L93 Difference]: Finished difference Result 276 states and 405 transitions. [2023-11-21 22:26:10,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:26:10,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 225 [2023-11-21 22:26:10,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:26:10,047 INFO L225 Difference]: With dead ends: 276 [2023-11-21 22:26:10,048 INFO L226 Difference]: Without dead ends: 274 [2023-11-21 22:26:10,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-21 22:26:10,049 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 50 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:26:10,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2982 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:26:10,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-11-21 22:26:10,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 262. [2023-11-21 22:26:10,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 142 states have (on average 1.1971830985915493) internal successors, (170), 145 states have internal predecessors, (170), 91 states have call successors, (91), 26 states have call predecessors, (91), 28 states have return successors, (112), 90 states have call predecessors, (112), 90 states have call successors, (112) [2023-11-21 22:26:10,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 373 transitions. [2023-11-21 22:26:10,077 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 373 transitions. Word has length 225 [2023-11-21 22:26:10,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:26:10,079 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 373 transitions. [2023-11-21 22:26:10,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-21 22:26:10,080 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 373 transitions. [2023-11-21 22:26:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-21 22:26:10,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:26:10,084 INFO L195 NwaCegarLoop]: trace histogram [17, 8, 8, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:26:10,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-21 22:26:10,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:26:10,316 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:26:10,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:26:10,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1869620051, now seen corresponding path program 1 times [2023-11-21 22:26:10,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:26:10,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612294904] [2023-11-21 22:26:10,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:10,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:26:10,479 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:26:10,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828465831] [2023-11-21 22:26:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:26:10,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:26:10,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:26:10,481 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:26:10,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82780a8b-81bd-4121-a943-ba8725b99de9/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:26:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:26:11,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 4284 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-21 22:26:11,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:26:11,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-21 22:26:11,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-21 22:26:19,975 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 99 proven. 249 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-21 22:26:19,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:26:21,356 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-11-21 22:26:21,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:26:21,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612294904] [2023-11-21 22:26:21,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:26:21,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828465831] [2023-11-21 22:26:21,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828465831] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:26:21,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:26:21,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7] total 18 [2023-11-21 22:26:21,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78990855] [2023-11-21 22:26:21,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:26:21,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 22:26:21,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:26:21,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 22:26:21,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=254, Unknown=3, NotChecked=0, Total=306 [2023-11-21 22:26:21,362 INFO L87 Difference]: Start difference. First operand 262 states and 373 transitions. Second operand has 18 states, 18 states have (on average 7.0) internal successors, (126), 18 states have internal predecessors, (126), 12 states have call successors, (82), 6 states have call predecessors, (82), 8 states have return successors, (81), 12 states have call predecessors, (81), 11 states have call successors, (81) [2023-11-21 22:26:26,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:26:32,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:26:34,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:26:36,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:26:38,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:26:41,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:26:43,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]