./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_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_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh --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 99ee682e10e695b9eb1615836043680c46e24c4df6227faaade6163d2feea99e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:14:32,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:14:32,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 19:14:32,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:14:32,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:14:32,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:14:32,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:14:32,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:14:32,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:14:32,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:14:32,109 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:14:32,110 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:14:32,110 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:14:32,111 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:14:32,111 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:14:32,112 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:14:32,112 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:14:32,113 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:14:32,113 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:14:32,114 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:14:32,114 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:14:32,115 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:14:32,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:14:32,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:14:32,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:14:32,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:14:32,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:14:32,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:14:32,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:14:32,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:14:32,119 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:14:32,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:14:32,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:14:32,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:14:32,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:14:32,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:14:32,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:14:32,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:14:32,122 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:14:32,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:14:32,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:14:32,122 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:14:32,123 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:14:32,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:14:32,123 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_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99ee682e10e695b9eb1615836043680c46e24c4df6227faaade6163d2feea99e [2023-12-02 19:14:32,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:14:32,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:14:32,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:14:32,371 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:14:32,371 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:14:32,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i [2023-12-02 19:14:35,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:14:35,532 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:14:35,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i [2023-12-02 19:14:35,560 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/data/1fafda5af/2075573791b341eab051680e0738d9d1/FLAGc627299dc [2023-12-02 19:14:35,575 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/data/1fafda5af/2075573791b341eab051680e0738d9d1 [2023-12-02 19:14:35,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:14:35,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:14:35,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:14:35,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:14:35,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:14:35,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:14:35" (1/1) ... [2023-12-02 19:14:35,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541b32c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:35, skipping insertion in model container [2023-12-02 19:14:35,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:14:35" (1/1) ... [2023-12-02 19:14:35,680 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:14:35,900 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_f7913cd4-6f99-4501-a189-eb50a580ec47/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4492,4505] [2023-12-02 19:14:35,907 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_f7913cd4-6f99-4501-a189-eb50a580ec47/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4552,4565] [2023-12-02 19:14:36,694 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:36,695 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:36,695 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:36,697 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:36,698 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:36,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:36,713 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:36,715 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:36,716 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,085 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 19:14:37,086 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 19:14:37,087 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 19:14:37,089 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 19:14:37,090 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 19:14:37,091 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 19:14:37,092 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 19:14:37,093 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 19:14:37,093 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 19:14:37,094 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 19:14:37,324 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,325 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:14:37,434 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:14:37,447 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_f7913cd4-6f99-4501-a189-eb50a580ec47/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4492,4505] [2023-12-02 19:14:37,448 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_f7913cd4-6f99-4501-a189-eb50a580ec47/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4552,4565] [2023-12-02 19:14:37,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,485 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,485 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,487 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,493 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,494 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,495 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,496 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,558 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 19:14:37,560 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 19:14:37,560 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 19:14:37,561 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 19:14:37,561 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 19:14:37,562 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 19:14:37,562 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 19:14:37,563 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 19:14:37,563 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 19:14:37,564 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 19:14:37,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-12-02 19:14:37,631 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,632 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 19:14:37,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-12-02 19:14:37,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:14:37,886 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,887 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,887 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,887 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,887 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,887 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,887 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,888 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,888 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,888 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,888 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,888 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,888 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,889 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,889 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,889 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,889 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,889 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:14:37,897 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:14:37,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37 WrapperNode [2023-12-02 19:14:37,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:14:37,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:14:37,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:14:37,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:14:37,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:37,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,044 INFO L138 Inliner]: procedures = 690, calls = 2618, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 803 [2023-12-02 19:14:38,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:14:38,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:14:38,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:14:38,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:14:38,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:14:38,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:14:38,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:14:38,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:14:38,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (1/1) ... [2023-12-02 19:14:38,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:14:38,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:14:38,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:14:38,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:14:38,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2023-12-02 19:14:38,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2023-12-02 19:14:38,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:14:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 19:14:38,222 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 19:14:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:14:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 19:14:38,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 19:14:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:14:38,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:14:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-12-02 19:14:38,223 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-12-02 19:14:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:14:38,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:14:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 19:14:38,223 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 19:14:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-12-02 19:14:38,224 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-12-02 19:14:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-12-02 19:14:38,224 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-12-02 19:14:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:14:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:14:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:14:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:14:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-12-02 19:14:38,226 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-12-02 19:14:38,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:14:38,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:14:38,447 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:14:38,450 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:14:39,538 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:14:39,671 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:14:39,672 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:14:39,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:14:39 BoogieIcfgContainer [2023-12-02 19:14:39,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:14:39,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:14:39,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:14:39,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:14:39,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:14:35" (1/3) ... [2023-12-02 19:14:39,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26986db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:14:39, skipping insertion in model container [2023-12-02 19:14:39,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:14:37" (2/3) ... [2023-12-02 19:14:39,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26986db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:14:39, skipping insertion in model container [2023-12-02 19:14:39,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:14:39" (3/3) ... [2023-12-02 19:14:39,682 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_harness.i [2023-12-02 19:14:39,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:14:39,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:14:39,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:14:39,757 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;@2aa5fbdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:14:39,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:14:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 48 states have internal predecessors, (59), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-02 19:14:39,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 19:14:39,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:39,773 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-02 19:14:39,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:14:39,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:39,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1390205959, now seen corresponding path program 1 times [2023-12-02 19:14:39,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:39,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099796776] [2023-12-02 19:14:39,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:39,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:41,368 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:14:41,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:41,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099796776] [2023-12-02 19:14:41,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099796776] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:14:41,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95910106] [2023-12-02 19:14:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:41,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:14:41,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:14:41,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:14:41,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:14:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:41,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 19:14:41,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:14:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 19:14:42,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:14:42,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95910106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:14:42,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:14:42,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2023-12-02 19:14:42,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369164164] [2023-12-02 19:14:42,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:14:42,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:14:42,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:14:42,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:14:42,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:14:42,099 INFO L87 Difference]: Start difference. First operand has 82 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 48 states have internal predecessors, (59), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-02 19:14:42,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:14:42,308 INFO L93 Difference]: Finished difference Result 132 states and 186 transitions. [2023-12-02 19:14:42,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:14:42,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 52 [2023-12-02 19:14:42,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:14:42,318 INFO L225 Difference]: With dead ends: 132 [2023-12-02 19:14:42,319 INFO L226 Difference]: Without dead ends: 80 [2023-12-02 19:14:42,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:14:42,326 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:14:42,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 336 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 19:14:42,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-12-02 19:14:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-12-02 19:14:42,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 44 states have (on average 1.25) internal successors, (55), 46 states have internal predecessors, (55), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 19:14:42,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 106 transitions. [2023-12-02 19:14:42,367 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 106 transitions. Word has length 52 [2023-12-02 19:14:42,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:14:42,368 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 106 transitions. [2023-12-02 19:14:42,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-02 19:14:42,369 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 106 transitions. [2023-12-02 19:14:42,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 19:14:42,373 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:14:42,373 INFO L195 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:14:42,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:14:42,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:14:42,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:14:42,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:14:42,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1462996124, now seen corresponding path program 1 times [2023-12-02 19:14:42,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:14:42,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40540299] [2023-12-02 19:14:42,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:42,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:14:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:45,628 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 19:14:45,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:14:45,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40540299] [2023-12-02 19:14:45,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40540299] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:14:45,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634991812] [2023-12-02 19:14:45,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:14:45,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:14:45,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:14:45,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:14:45,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7913cd4-6f99-4501-a189-eb50a580ec47/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:14:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:14:46,164 INFO L262 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 73 conjunts are in the unsatisfiable core [2023-12-02 19:14:46,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:14:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 38 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:14:47,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:14:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 19:14:48,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634991812] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:14:48,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [619380387] [2023-12-02 19:14:48,919 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2023-12-02 19:14:48,920 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:14:48,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:14:48,928 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:14:48,929 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:16:07,459 WARN L293 SmtUtils]: Spent 7.03s on a formula simplification that was a NOOP. DAG size: 2719 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:16:14,519 WARN L293 SmtUtils]: Spent 7.03s on a formula simplification that was a NOOP. DAG size: 2719 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:16:25,121 WARN L293 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 2720 DAG size of output: 2720 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:16:32,083 WARN L293 SmtUtils]: Spent 6.95s on a formula simplification that was a NOOP. DAG size: 2719 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:16:39,077 WARN L293 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 2719 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:16:49,783 WARN L293 SmtUtils]: Spent 10.69s on a formula simplification. DAG size of input: 2720 DAG size of output: 2720 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:16:56,940 WARN L293 SmtUtils]: Spent 7.14s on a formula simplification that was a NOOP. DAG size: 2719 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:17:04,757 WARN L293 SmtUtils]: Spent 7.77s on a formula simplification that was a NOOP. DAG size: 2719 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:17:15,501 WARN L293 SmtUtils]: Spent 10.73s on a formula simplification. DAG size of input: 2720 DAG size of output: 2720 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:17:22,507 WARN L293 SmtUtils]: Spent 6.99s on a formula simplification that was a NOOP. DAG size: 2719 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:17:29,541 WARN L293 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 2719 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:17:40,097 WARN L293 SmtUtils]: Spent 10.54s on a formula simplification. DAG size of input: 2720 DAG size of output: 2720 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:18:00,989 WARN L293 SmtUtils]: Spent 6.96s on a formula simplification that was a NOOP. DAG size: 2685 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 19:19:12,347 WARN L293 SmtUtils]: Spent 6.91s on a formula simplification that was a NOOP. DAG size: 2685 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 19:20:10,404 WARN L293 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 2685 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 19:21:20,861 WARN L293 SmtUtils]: Spent 6.87s on a formula simplification that was a NOOP. DAG size: 2685 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 19:22:10,861 WARN L293 SmtUtils]: Spent 12.39s on a formula simplification that was a NOOP. DAG size: 3534 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:22:21,074 WARN L293 SmtUtils]: Spent 10.15s on a formula simplification that was a NOOP. DAG size: 3534 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:22:45,527 WARN L293 SmtUtils]: Spent 7.51s on a formula simplification that was a NOOP. DAG size: 2685 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 19:23:42,895 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_eq_c_str with input of size 49 for LOIs [2023-12-02 19:23:43,482 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 124 for LOIs [2023-12-02 19:23:43,724 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 48 for LOIs [2023-12-02 19:23:43,730 INFO L197 IcfgInterpreter]: Interpreting procedure save_byte_from_array with input of size 49 for LOIs [2023-12-02 19:23:43,761 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 88 for LOIs [2023-12-02 19:23:44,116 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 43 for LOIs [2023-12-02 19:23:44,123 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_malloc with input of size 2724 for LOIs [2023-12-02 19:24:57,640 WARN L293 SmtUtils]: Spent 7.04s on a formula simplification that was a NOOP. DAG size: 2685 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 19:26:53,242 WARN L293 SmtUtils]: Spent 7.36s on a formula simplification that was a NOOP. DAG size: 2685 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 19:28:35,581 WARN L293 SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 2726 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:28:42,600 WARN L293 SmtUtils]: Spent 6.99s on a formula simplification that was a NOOP. DAG size: 2725 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:28:55,803 WARN L293 SmtUtils]: Spent 13.15s on a formula simplification. DAG size of input: 2726 DAG size of output: 2726 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:29:04,450 WARN L293 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 2726 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:29:12,828 WARN L293 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 2725 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 19:29:24,274 WARN L293 SmtUtils]: Spent 11.43s on a formula simplification. DAG size of input: 2726 DAG size of output: 2726 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)