./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.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_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/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_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/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_e8f55aaf-0301-4140-a87e-b54190a60d3e/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 ffbf3b1479afd9aaa2ec45fcd2782998a39316f97238379433376f7ba5094eb5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:53:22,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:53:22,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:53:23,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:53:23,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:53:23,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:53:23,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:53:23,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:53:23,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:53:23,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:53:23,064 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:53:23,064 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:53:23,065 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:53:23,066 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:53:23,068 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:53:23,068 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:53:23,069 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:53:23,069 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:53:23,069 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:53:23,070 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:53:23,070 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:53:23,071 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:53:23,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:53:23,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:53:23,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:53:23,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:53:23,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:53:23,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:53:23,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:53:23,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:53:23,077 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:53:23,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:53:23,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:53:23,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:53:23,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:23,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:53:23,079 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:53:23,079 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:53:23,079 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:53:23,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:53:23,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:53:23,080 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:53:23,080 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:53:23,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:53:23,081 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_e8f55aaf-0301-4140-a87e-b54190a60d3e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffbf3b1479afd9aaa2ec45fcd2782998a39316f97238379433376f7ba5094eb5 [2023-11-24 23:53:23,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:53:23,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:53:23,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:53:23,540 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:53:23,541 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:53:23,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2023-11-24 23:53:26,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:53:27,448 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:53:27,448 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2023-11-24 23:53:27,520 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/data/2c84a7b46/25f588808d06419c91691e2dc3f2b7dc/FLAG2dc574d7b [2023-11-24 23:53:27,539 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/data/2c84a7b46/25f588808d06419c91691e2dc3f2b7dc [2023-11-24 23:53:27,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:53:27,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:53:27,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:27,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:53:27,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:53:27,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:27" (1/1) ... [2023-11-24 23:53:27,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122aed24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:27, skipping insertion in model container [2023-11-24 23:53:27,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:27" (1/1) ... [2023-11-24 23:53:27,702 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:53:27,952 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_e8f55aaf-0301-4140-a87e-b54190a60d3e/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4501,4514] [2023-11-24 23:53:27,961 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_e8f55aaf-0301-4140-a87e-b54190a60d3e/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4561,4574] [2023-11-24 23:53:28,969 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,971 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,973 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,988 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,991 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,991 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,995 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,996 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:28,996 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,372 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:53:29,374 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:53:29,375 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:53:29,377 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:53:29,379 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:53:29,380 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:53:29,381 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:53:29,382 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:53:29,383 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:53:29,384 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:53:29,540 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,556 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:29,726 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:53:29,742 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_e8f55aaf-0301-4140-a87e-b54190a60d3e/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4501,4514] [2023-11-24 23:53:29,742 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_e8f55aaf-0301-4140-a87e-b54190a60d3e/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4561,4574] [2023-11-24 23:53:29,854 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,859 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,860 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,860 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,861 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,874 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,875 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,880 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,882 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,883 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,886 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,887 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,888 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:29,949 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-24 23:53:29,951 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-24 23:53:29,954 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-24 23:53:29,957 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-24 23:53:29,959 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-24 23:53:29,960 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-24 23:53:29,961 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-24 23:53:29,961 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-24 23:53:29,962 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-24 23:53:29,963 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-24 23:53:29,994 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:30,005 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-24 23:53:30,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2023-11-24 23:53:30,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:30,261 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,261 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,261 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,261 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,262 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,262 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,263 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,263 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,263 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,263 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,263 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,264 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,264 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,264 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,264 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:30,272 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:53:30,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30 WrapperNode [2023-11-24 23:53:30,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:30,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:30,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:53:30,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:53:30,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,511 INFO L138 Inliner]: procedures = 689, calls = 1562, calls flagged for inlining = 47, calls inlined = 6, statements flattened = 596 [2023-11-24 23:53:30,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:30,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:53:30,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:53:30,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:53:30,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:53:30,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:53:30,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:53:30,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:53:30,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (1/1) ... [2023-11-24 23:53:30,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:30,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:30,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:53:30,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:53:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-24 23:53:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-24 23:53:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:53:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-24 23:53:30,796 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-24 23:53:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-24 23:53:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-24 23:53:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-24 23:53:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-24 23:53:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:53:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-24 23:53:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-24 23:53:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:53:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:53:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:53:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:53:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:53:30,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:53:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:53:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-24 23:53:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-24 23:53:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-24 23:53:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-24 23:53:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-24 23:53:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-24 23:53:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:53:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:53:30,803 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:53:30,803 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:53:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-24 23:53:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-24 23:53:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:53:30,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:53:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:53:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-24 23:53:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-24 23:53:30,805 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-24 23:53:30,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-24 23:53:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:53:30,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:53:31,213 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:53:31,216 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:53:32,245 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:53:32,505 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:53:32,505 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 23:53:32,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:32 BoogieIcfgContainer [2023-11-24 23:53:32,507 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:53:32,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:53:32,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:53:32,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:53:32,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:53:27" (1/3) ... [2023-11-24 23:53:32,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd72638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:32, skipping insertion in model container [2023-11-24 23:53:32,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:30" (2/3) ... [2023-11-24 23:53:32,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd72638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:32, skipping insertion in model container [2023-11-24 23:53:32,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:32" (3/3) ... [2023-11-24 23:53:32,521 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_dynamic_harness.i [2023-11-24 23:53:32,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:53:32,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:53:32,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:53:32,625 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;@17087df9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:53:32,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:53:32,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 63 states have internal predecessors, (76), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-24 23:53:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-24 23:53:32,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:32,644 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:53:32,644 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:32,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:32,652 INFO L85 PathProgramCache]: Analyzing trace with hash -767777379, now seen corresponding path program 1 times [2023-11-24 23:53:32,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:32,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897236818] [2023-11-24 23:53:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:32,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:33,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:33,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897236818] [2023-11-24 23:53:33,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-24 23:53:33,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336436936] [2023-11-24 23:53:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:33,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:33,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:33,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:53:33,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:53:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:34,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:53:34,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 23:53:34,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:53:34,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336436936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:34,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:34,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:53:34,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711824925] [2023-11-24 23:53:34,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:34,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:53:34,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:34,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:53:34,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:53:34,174 INFO L87 Difference]: Start difference. First operand has 111 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 63 states have internal predecessors, (76), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-24 23:53:34,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:34,365 INFO L93 Difference]: Finished difference Result 213 states and 282 transitions. [2023-11-24 23:53:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:53:34,370 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 39 [2023-11-24 23:53:34,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:34,384 INFO L225 Difference]: With dead ends: 213 [2023-11-24 23:53:34,384 INFO L226 Difference]: Without dead ends: 107 [2023-11-24 23:53:34,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:53:34,394 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:34,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:53:34,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-24 23:53:34,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-24 23:53:34,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 58 states have (on average 1.206896551724138) internal successors, (70), 60 states have internal predecessors, (70), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-24 23:53:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 136 transitions. [2023-11-24 23:53:34,456 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 136 transitions. Word has length 39 [2023-11-24 23:53:34,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:34,458 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 136 transitions. [2023-11-24 23:53:34,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-24 23:53:34,459 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 136 transitions. [2023-11-24 23:53:34,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-24 23:53:34,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:34,463 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:53:34,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:53:34,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:53:34,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:34,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:34,676 INFO L85 PathProgramCache]: Analyzing trace with hash -755927444, now seen corresponding path program 1 times [2023-11-24 23:53:34,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:34,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574346724] [2023-11-24 23:53:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:34,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:34,839 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:53:34,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431347906] [2023-11-24 23:53:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:34,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:34,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:34,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:53:34,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 23:53:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:35,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 1985 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:53:35,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 23:53:35,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:53:35,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:35,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574346724] [2023-11-24 23:53:35,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:53:35,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431347906] [2023-11-24 23:53:35,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431347906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:35,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:35,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:53:35,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156370407] [2023-11-24 23:53:35,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:35,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:53:35,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:35,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:53:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:53:35,717 INFO L87 Difference]: Start difference. First operand 107 states and 136 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:53:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:36,111 INFO L93 Difference]: Finished difference Result 203 states and 255 transitions. [2023-11-24 23:53:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:53:36,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 44 [2023-11-24 23:53:36,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:36,117 INFO L225 Difference]: With dead ends: 203 [2023-11-24 23:53:36,117 INFO L226 Difference]: Without dead ends: 108 [2023-11-24 23:53:36,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:53:36,129 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 1 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:36,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 355 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 23:53:36,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-24 23:53:36,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-11-24 23:53:36,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 61 states have internal predecessors, (71), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-24 23:53:36,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 137 transitions. [2023-11-24 23:53:36,160 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 137 transitions. Word has length 44 [2023-11-24 23:53:36,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:36,161 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 137 transitions. [2023-11-24 23:53:36,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 23:53:36,164 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 137 transitions. [2023-11-24 23:53:36,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-24 23:53:36,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:36,168 INFO L195 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:53:36,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-24 23:53:36,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:36,379 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:36,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:36,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1414479926, now seen corresponding path program 1 times [2023-11-24 23:53:36,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:36,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939032365] [2023-11-24 23:53:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:36,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:36,521 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:53:36,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132420891] [2023-11-24 23:53:36,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:36,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:53:36,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:36,526 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:53:36,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f55aaf-0301-4140-a87e-b54190a60d3e/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 23:53:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:37,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 2004 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:53:37,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 23:53:37,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:53:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-24 23:53:37,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:37,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939032365] [2023-11-24 23:53:37,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-24 23:53:37,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132420891] [2023-11-24 23:53:37,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132420891] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:53:37,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1764161219] [2023-11-24 23:53:37,449 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2023-11-24 23:53:37,450 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:53:37,454 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:53:37,460 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:53:37,463 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs