./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 0e0057cc 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_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/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_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:50:16,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:50:16,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:50:16,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:50:16,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:50:16,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:50:16,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:50:16,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:50:16,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:50:16,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:50:16,412 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:50:16,413 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:50:16,413 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:50:16,413 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:50:16,414 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:50:16,414 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:50:16,415 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:50:16,415 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:50:16,416 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:50:16,416 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:50:16,417 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:50:16,419 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:50:16,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:50:16,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:50:16,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:50:16,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:50:16,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:50:16,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:50:16,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:50:16,423 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:50:16,424 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:50:16,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:50:16,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:50:16,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:50:16,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:16,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:50:16,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:50:16,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:50:16,427 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:50:16,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:50:16,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:50:16,428 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:50:16,428 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:50:16,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:50:16,429 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_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60c6b7f7f10f0b58422dda68af0c160071220e1df94b065f3ff541927c670dfd [2023-11-24 23:50:16,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:50:16,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:50:16,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:50:16,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:50:16,727 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:50:16,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i [2023-11-24 23:50:19,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:50:20,416 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:50:20,417 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i [2023-11-24 23:50:20,462 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/data/6733b19c5/ce66cf988a2341ab82ae9021eaa60542/FLAG15da10bd5 [2023-11-24 23:50:20,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/data/6733b19c5/ce66cf988a2341ab82ae9021eaa60542 [2023-11-24 23:50:20,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:50:20,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:50:20,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:20,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:50:20,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:50:20,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:20" (1/1) ... [2023-11-24 23:50:20,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39597ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:20, skipping insertion in model container [2023-11-24 23:50:20,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:20" (1/1) ... [2023-11-24 23:50:20,656 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:50:21,089 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_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4492,4505] [2023-11-24 23:50:21,101 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_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4552,4565] [2023-11-24 23:50:22,396 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,397 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,398 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,399 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,400 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,419 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,420 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,423 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,424 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,426 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,428 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,429 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:22,429 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,009 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:50:23,010 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:50:23,011 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:50:23,013 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:50:23,014 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:50:23,015 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:50:23,016 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:50:23,017 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:50:23,017 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:50:23,018 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:50:23,636 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,637 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,658 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,659 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,665 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,666 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,680 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,681 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,681 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,682 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,682 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,683 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,683 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:23,756 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:50:23,770 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_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4492,4505] [2023-11-24 23:50:23,771 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_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness_negated.i[4552,4565] [2023-11-24 23:50:23,818 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,819 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,821 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,821 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,822 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,839 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,841 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,842 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,842 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,843 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,844 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,845 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,845 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:23,940 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:50:23,947 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:50:23,948 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:50:23,950 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:50:23,951 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:50:23,953 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:50:23,954 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:50:23,954 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:50:23,955 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:50:23,956 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:50:24,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2023-11-24 23:50:24,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,154 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,155 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,160 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,161 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,176 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,177 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,178 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,180 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,180 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:50:24,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:50:24,434 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,434 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,434 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,434 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,434 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,435 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,435 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,435 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,435 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,435 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,435 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,436 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,436 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,436 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,436 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,436 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,436 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,437 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:50:24,445 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:50:24,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24 WrapperNode [2023-11-24 23:50:24,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:24,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:24,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:50:24,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:50:24,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,720 INFO L138 Inliner]: procedures = 772, calls = 2453, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 643 [2023-11-24 23:50:24,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:50:24,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:50:24,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:50:24,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:50:24,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,818 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:50:24,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:50:24,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:50:24,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:50:24,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (1/1) ... [2023-11-24 23:50:24,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:24,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:24,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:50:24,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:50:24,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:50:24,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:50:24,930 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-24 23:50:24,930 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-24 23:50:24,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:50:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:50:24,931 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-24 23:50:24,931 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-24 23:50:24,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:50:24,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:50:24,931 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2023-11-24 23:50:24,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2023-11-24 23:50:24,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:50:24,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:50:24,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:50:24,933 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-24 23:50:24,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-24 23:50:24,934 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-24 23:50:24,934 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-24 23:50:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:50:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-24 23:50:24,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-24 23:50:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:50:24,935 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-24 23:50:24,935 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-24 23:50:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:50:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-24 23:50:24,936 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-24 23:50:24,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:50:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-24 23:50:24,937 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-24 23:50:24,937 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2023-11-24 23:50:24,937 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2023-11-24 23:50:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:50:24,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:50:24,938 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2023-11-24 23:50:24,938 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2023-11-24 23:50:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-24 23:50:24,939 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-24 23:50:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:50:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-24 23:50:24,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-24 23:50:24,939 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-24 23:50:24,940 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-24 23:50:24,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:50:25,329 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:50:25,332 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:50:26,312 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:50:26,673 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:50:26,674 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:50:26,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:50:26 BoogieIcfgContainer [2023-11-24 23:50:26,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:50:26,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:50:26,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:50:26,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:50:26,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:50:20" (1/3) ... [2023-11-24 23:50:26,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f464fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:50:26, skipping insertion in model container [2023-11-24 23:50:26,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:24" (2/3) ... [2023-11-24 23:50:26,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f464fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:50:26, skipping insertion in model container [2023-11-24 23:50:26,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:50:26" (3/3) ... [2023-11-24 23:50:26,684 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness_negated.i [2023-11-24 23:50:26,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:50:26,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:50:26,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:50:26,769 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;@46f37528, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:50:26,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:50:26,774 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) [2023-11-24 23:50:26,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-24 23:50:26,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:26,795 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] [2023-11-24 23:50:26,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:26,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:26,803 INFO L85 PathProgramCache]: Analyzing trace with hash 483048459, now seen corresponding path program 1 times [2023-11-24 23:50:26,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:50:26,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843137507] [2023-11-24 23:50:26,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:26,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:50:27,243 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:50:27,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404685521] [2023-11-24 23:50:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:27,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:50:27,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:27,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:50:27,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:50:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:28,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 2528 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:50:28,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-24 23:50:28,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:50:28,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:50:28,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843137507] [2023-11-24 23:50:28,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:50:28,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404685521] [2023-11-24 23:50:28,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404685521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:28,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:28,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 23:50:28,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313121707] [2023-11-24 23:50:28,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:28,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:50:28,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:50:28,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:50:28,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:50:28,367 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) [2023-11-24 23:50:29,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:29,025 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2023-11-24 23:50:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:50:29,027 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 [2023-11-24 23:50:29,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:29,042 INFO L225 Difference]: With dead ends: 237 [2023-11-24 23:50:29,042 INFO L226 Difference]: Without dead ends: 129 [2023-11-24 23:50:29,049 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 [2023-11-24 23:50:29,058 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:29,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 448 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 23:50:29,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-24 23:50:29,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-11-24 23:50:29,131 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) [2023-11-24 23:50:29,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 167 transitions. [2023-11-24 23:50:29,142 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 167 transitions. Word has length 117 [2023-11-24 23:50:29,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:29,143 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 167 transitions. [2023-11-24 23:50:29,143 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) [2023-11-24 23:50:29,144 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 167 transitions. [2023-11-24 23:50:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-24 23:50:29,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:29,174 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] [2023-11-24 23:50:29,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:50:29,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:50:29,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:50:29,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:29,391 INFO L85 PathProgramCache]: Analyzing trace with hash 479928495, now seen corresponding path program 1 times [2023-11-24 23:50:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:50:29,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465478207] [2023-11-24 23:50:29,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:29,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:50:29,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:50:29,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830687996] [2023-11-24 23:50:29,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:29,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:50:29,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:29,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:50:29,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa9c1230-8085-4bf2-bd53-2bfb1bb0a98f/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 23:50:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:30,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 2533 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:50:30,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:30,429 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 57 proven. 33 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-24 23:50:30,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:50:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-11-24 23:50:30,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:50:30,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465478207] [2023-11-24 23:50:30,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:50:30,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830687996] [2023-11-24 23:50:30,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830687996] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:50:30,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [146133123] [2023-11-24 23:50:30,778 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-11-24 23:50:30,779 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:50:30,783 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:50:30,788 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:50:30,789 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs