./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60c6b7f7f10f0b58422dda68af0c160071220e1df94b065f3ff541927c670dfd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:16,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:16,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:57:16,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:16,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:16,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:16,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:16,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:16,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:16,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:16,206 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:16,208 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:16,208 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:16,210 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:57:16,211 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:16,211 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:16,212 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:57:16,213 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:57:16,213 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:16,214 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:57:16,214 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:57:16,215 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:57:16,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:16,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:57:16,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:57:16,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:16,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:57:16,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:16,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:57:16,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:57:16,222 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:16,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:16,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:16,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:16,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:16,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:16,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:57:16,224 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:57:16,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:57:16,225 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:57:16,225 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:16,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:16,226 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60c6b7f7f10f0b58422dda68af0c160071220e1df94b065f3ff541927c670dfd [2023-11-12 00:57:16,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:16,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:16,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:16,521 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:16,522 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:16,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i [2023-11-12 00:57:19,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:20,354 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:20,356 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i [2023-11-12 00:57:20,403 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/data/7d73920b5/2b70e06ada80435f8fa847edb3f3de2a/FLAG023c7f800 [2023-11-12 00:57:20,420 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/data/7d73920b5/2b70e06ada80435f8fa847edb3f3de2a [2023-11-12 00:57:20,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:20,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:20,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:20,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:20,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:20,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:20" (1/1) ... [2023-11-12 00:57:20,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@686e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:20, skipping insertion in model container [2023-11-12 00:57:20,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:20" (1/1) ... [2023-11-12 00:57:20,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:21,050 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_bae70a7e-6679-4184-ad52-e0850898161e/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4492,4505] [2023-11-12 00:57:21,060 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_bae70a7e-6679-4184-ad52-e0850898161e/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4552,4565] [2023-11-12 00:57:22,248 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,249 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,250 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,251 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,253 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,273 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,274 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,279 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,281 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,283 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,290 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,291 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,293 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:22,827 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:57:22,829 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:57:22,830 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:57:22,831 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:57:22,833 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:57:22,834 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:57:22,835 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:57:22,835 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:57:22,836 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:57:22,837 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:57:23,505 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,506 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,552 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,555 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,563 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,564 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,588 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,590 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,591 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,591 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,592 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,592 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,593 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:23,708 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:57:23,730 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_bae70a7e-6679-4184-ad52-e0850898161e/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4492,4505] [2023-11-12 00:57:23,733 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_bae70a7e-6679-4184-ad52-e0850898161e/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4552,4565] [2023-11-12 00:57:23,799 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,800 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,800 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,801 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,803 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,812 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,813 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,814 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,817 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,819 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,819 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,820 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,820 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:23,863 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:57:23,864 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:57:23,865 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:57:23,866 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:57:23,867 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:57:23,868 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:57:23,869 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:57:23,870 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:57:23,871 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:57:23,871 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:57:23,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2023-11-12 00:57:24,058 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,058 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,069 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,069 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,073 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,074 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,089 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,090 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,090 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,091 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,091 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,091 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,092 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:57:24,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:24,462 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,463 WARN L672 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,463 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,463 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,463 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,463 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,463 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,464 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,464 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,464 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,464 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,464 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,464 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,465 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,465 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,465 WARN L672 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,465 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,465 WARN L672 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:57:24,473 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:57:24,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24 WrapperNode [2023-11-12 00:57:24,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:24,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:24,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:57:24,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:57:24,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,765 INFO L138 Inliner]: procedures = 772, calls = 2453, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 643 [2023-11-12 00:57:24,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:24,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:57:24,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:57:24,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:57:24,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,793 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,906 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:57:24,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:57:24,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:57:24,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:57:24,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (1/1) ... [2023-11-12 00:57:24,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:24,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:24,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:57:24,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:57:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 00:57:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:57:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 00:57:24,991 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 00:57:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:57:24,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:57:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-12 00:57:24,992 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-12 00:57:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:57:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:57:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2023-11-12 00:57:24,992 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2023-11-12 00:57:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:57:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:57:24,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:57:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:57:24,993 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:57:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-12 00:57:24,994 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-12 00:57:24,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:57:24,994 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-12 00:57:24,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-12 00:57:24,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:57:24,994 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:57:24,994 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:57:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:57:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-12 00:57:24,995 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-12 00:57:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:57:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-12 00:57:24,995 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-12 00:57:24,996 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2023-11-12 00:57:24,996 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2023-11-12 00:57:24,996 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:57:24,996 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:57:24,996 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2023-11-12 00:57:24,996 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2023-11-12 00:57:24,997 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-12 00:57:24,997 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-12 00:57:24,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:57:24,997 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-12 00:57:24,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-12 00:57:24,997 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-12 00:57:24,997 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-12 00:57:24,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:57:25,327 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:57:25,330 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:57:26,535 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:57:26,953 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:57:26,953 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:57:26,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:26 BoogieIcfgContainer [2023-11-12 00:57:26,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:57:26,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:57:26,961 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:57:26,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:57:26,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:57:20" (1/3) ... [2023-11-12 00:57:26,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff4e483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:26, skipping insertion in model container [2023-11-12 00:57:26,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:24" (2/3) ... [2023-11-12 00:57:26,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff4e483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:26, skipping insertion in model container [2023-11-12 00:57:26,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:26" (3/3) ... [2023-11-12 00:57:26,974 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness_negated.i [2023-11-12 00:57:26,996 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:57:26,996 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:57:27,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:57:27,085 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=FINITE_AUTOMATA, 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;@7f57a3e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:57:27,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:57:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 69 states have internal predecessors, (80), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-12 00:57:27,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-12 00:57:27,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:27,124 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 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] [2023-11-12 00:57:27,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:27,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:27,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1789166237, now seen corresponding path program 1 times [2023-11-12 00:57:27,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:27,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548261813] [2023-11-12 00:57:27,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:27,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:27,657 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:57:27,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493210199] [2023-11-12 00:57:27,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:27,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:57:27,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:27,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:57:27,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:57:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:28,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 2528 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:57:28,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:57:28,705 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-12 00:57:28,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:57:28,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:28,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548261813] [2023-11-12 00:57:28,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:57:28,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493210199] [2023-11-12 00:57:28,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493210199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:28,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:28,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:57:28,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867626231] [2023-11-12 00:57:28,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:28,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:57:28,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:28,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:57:28,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:57:28,759 INFO L87 Difference]: Start difference. First operand has 129 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 69 states have internal predecessors, (80), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-12 00:57:29,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:29,610 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2023-11-12 00:57:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:57:29,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 117 [2023-11-12 00:57:29,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:29,624 INFO L225 Difference]: With dead ends: 237 [2023-11-12 00:57:29,624 INFO L226 Difference]: Without dead ends: 129 [2023-11-12 00:57:29,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:57:29,638 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:29,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 448 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 00:57:29,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-12 00:57:29,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-11-12 00:57:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 68 states have (on average 1.161764705882353) internal successors, (79), 70 states have internal predecessors, (79), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (45), 42 states have call predecessors, (45), 42 states have call successors, (45) [2023-11-12 00:57:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2023-11-12 00:57:29,742 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 117 [2023-11-12 00:57:29,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:29,743 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2023-11-12 00:57:29,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-12 00:57:29,744 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2023-11-12 00:57:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-12 00:57:29,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:29,757 INFO L195 NwaCegarLoop]: trace histogram [10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:57:29,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:57:29,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:57:29,973 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:29,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:29,973 INFO L85 PathProgramCache]: Analyzing trace with hash 787124655, now seen corresponding path program 1 times [2023-11-12 00:57:29,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:29,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969697794] [2023-11-12 00:57:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:29,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:30,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:57:30,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426913900] [2023-11-12 00:57:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:30,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:57:30,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:30,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:57:30,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae70a7e-6679-4184-ad52-e0850898161e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:57:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:30,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:57:30,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:57:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 57 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-12 00:57:31,066 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:57:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-11-12 00:57:31,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:31,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969697794] [2023-11-12 00:57:31,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:57:31,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426913900] [2023-11-12 00:57:31,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426913900] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:57:31,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [334568523] [2023-11-12 00:57:31,375 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-11-12 00:57:31,375 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:57:31,379 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:57:31,385 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:57:31,385 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs