./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/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_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/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_d5adb212-34d7-4972-9e70-ca1d7a413654/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 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 08:19:50,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 08:19:50,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 08:19:50,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 08:19:50,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 08:19:50,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 08:19:50,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 08:19:50,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 08:19:50,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 08:19:50,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 08:19:50,652 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 08:19:50,652 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 08:19:50,653 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 08:19:50,653 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 08:19:50,653 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 08:19:50,654 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 08:19:50,654 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 08:19:50,655 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 08:19:50,655 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 08:19:50,656 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 08:19:50,656 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 08:19:50,657 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 08:19:50,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 08:19:50,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 08:19:50,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 08:19:50,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 08:19:50,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 08:19:50,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 08:19:50,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 08:19:50,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 08:19:50,660 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 08:19:50,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 08:19:50,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 08:19:50,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 08:19:50,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:19:50,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 08:19:50,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 08:19:50,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 08:19:50,662 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 08:19:50,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 08:19:50,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 08:19:50,663 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 08:19:50,663 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 08:19:50,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 08:19:50,663 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_d5adb212-34d7-4972-9e70-ca1d7a413654/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce [2023-12-02 08:19:50,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 08:19:50,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 08:19:50,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 08:19:50,890 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 08:19:50,890 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 08:19:50,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2023-12-02 08:19:53,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 08:19:54,198 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 08:19:54,199 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2023-12-02 08:19:54,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/data/8677e1fd3/3bbd03c0cc8f402da482e27dec2e09a2/FLAGb883ba3f7 [2023-12-02 08:19:54,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/data/8677e1fd3/3bbd03c0cc8f402da482e27dec2e09a2 [2023-12-02 08:19:54,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 08:19:54,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 08:19:54,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 08:19:54,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 08:19:54,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 08:19:54,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:19:54" (1/1) ... [2023-12-02 08:19:54,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b831f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:54, skipping insertion in model container [2023-12-02 08:19:54,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:19:54" (1/1) ... [2023-12-02 08:19:54,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 08:19:54,688 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_d5adb212-34d7-4972-9e70-ca1d7a413654/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2023-12-02 08:19:54,696 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_d5adb212-34d7-4972-9e70-ca1d7a413654/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2023-12-02 08:19:55,448 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:55,449 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:55,450 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:55,451 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:55,452 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:55,467 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:55,468 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:55,470 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:55,471 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:55,903 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 08:19:55,904 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 08:19:55,905 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 08:19:55,906 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 08:19:55,908 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 08:19:55,909 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 08:19:55,910 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 08:19:55,910 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 08:19:55,911 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 08:19:55,912 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 08:19:56,149 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,149 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:19:56,249 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 08:19:56,259 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_d5adb212-34d7-4972-9e70-ca1d7a413654/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2023-12-02 08:19:56,260 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_d5adb212-34d7-4972-9e70-ca1d7a413654/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2023-12-02 08:19:56,294 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,295 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,295 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,295 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,296 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,301 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,302 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,303 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,303 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,331 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 08:19:56,331 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 08:19:56,332 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 08:19:56,332 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 08:19:56,333 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 08:19:56,334 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 08:19:56,334 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 08:19:56,334 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 08:19:56,335 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 08:19:56,335 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 08:19:56,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-12-02 08:19:56,429 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,430 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 08:19:56,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-12-02 08:19:56,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 08:19:56,619 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,619 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,619 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,620 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,620 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,620 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,620 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,620 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,620 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,620 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,621 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,621 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,621 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,621 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,621 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,621 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,621 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,621 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 08:19:56,627 INFO L206 MainTranslator]: Completed translation [2023-12-02 08:19:56,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56 WrapperNode [2023-12-02 08:19:56,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 08:19:56,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 08:19:56,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 08:19:56,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 08:19:56,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,776 INFO L138 Inliner]: procedures = 690, calls = 2618, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 803 [2023-12-02 08:19:56,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 08:19:56,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 08:19:56,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 08:19:56,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 08:19:56,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 08:19:56,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 08:19:56,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 08:19:56,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 08:19:56,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (1/1) ... [2023-12-02 08:19:56,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 08:19:56,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:19:56,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 08:19:56,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 08:19:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2023-12-02 08:19:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2023-12-02 08:19:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 08:19:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 08:19:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 08:19:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 08:19:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 08:19:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 08:19:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 08:19:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 08:19:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-12-02 08:19:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-12-02 08:19:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 08:19:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 08:19:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 08:19:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 08:19:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-12-02 08:19:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-12-02 08:19:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-12-02 08:19:56,930 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-12-02 08:19:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 08:19:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 08:19:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 08:19:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 08:19:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-12-02 08:19:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-12-02 08:19:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 08:19:56,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 08:19:57,168 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 08:19:57,171 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 08:19:58,285 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 08:19:58,446 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 08:19:58,447 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 08:19:58,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:19:58 BoogieIcfgContainer [2023-12-02 08:19:58,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 08:19:58,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 08:19:58,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 08:19:58,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 08:19:58,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:19:54" (1/3) ... [2023-12-02 08:19:58,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f71f483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:19:58, skipping insertion in model container [2023-12-02 08:19:58,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:19:56" (2/3) ... [2023-12-02 08:19:58,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f71f483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:19:58, skipping insertion in model container [2023-12-02 08:19:58,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:19:58" (3/3) ... [2023-12-02 08:19:58,458 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_harness-1.i [2023-12-02 08:19:58,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 08:19:58,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 08:19:58,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 08:19:58,534 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;@29ad5e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 08:19:58,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 08:19:58,538 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 08:19:58,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 08:19:58,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:19:58,549 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 08:19:58,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:19:58,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:19:58,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1390205959, now seen corresponding path program 1 times [2023-12-02 08:19:58,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:19:58,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169735809] [2023-12-02 08:19:58,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:19:58,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:19:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:20:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 08:20:00,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:20:00,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169735809] [2023-12-02 08:20:00,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169735809] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:20:00,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746444046] [2023-12-02 08:20:00,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:20:00,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:20:00,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:20:00,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:20:00,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 08:20:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:20:01,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 08:20:01,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:20:01,298 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 08:20:01,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 08:20:01,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746444046] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 08:20:01,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 08:20:01,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-12-02 08:20:01,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933395307] [2023-12-02 08:20:01,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 08:20:01,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 08:20:01,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 08:20:01,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 08:20:01,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-12-02 08:20:01,342 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 08:20:01,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 08:20:01,586 INFO L93 Difference]: Finished difference Result 132 states and 186 transitions. [2023-12-02 08:20:01,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 08:20:01,588 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 08:20:01,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 08:20:01,597 INFO L225 Difference]: With dead ends: 132 [2023-12-02 08:20:01,597 INFO L226 Difference]: Without dead ends: 80 [2023-12-02 08:20:01,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-12-02 08:20:01,605 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 08:20:01,606 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 08:20:01,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-12-02 08:20:01,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-12-02 08:20:01,647 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 08:20:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 106 transitions. [2023-12-02 08:20:01,651 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 106 transitions. Word has length 52 [2023-12-02 08:20:01,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 08:20:01,653 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 106 transitions. [2023-12-02 08:20:01,654 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 08:20:01,654 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 106 transitions. [2023-12-02 08:20:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 08:20:01,658 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 08:20:01,659 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 08:20:01,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 08:20:01,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 08:20:01,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 08:20:01,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 08:20:01,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1462996124, now seen corresponding path program 1 times [2023-12-02 08:20:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 08:20:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787588917] [2023-12-02 08:20:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:20:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 08:20:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:20:05,269 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 08:20:05,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 08:20:05,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787588917] [2023-12-02 08:20:05,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787588917] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 08:20:05,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142977398] [2023-12-02 08:20:05,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 08:20:05,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 08:20:05,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 08:20:05,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 08:20:05,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5adb212-34d7-4972-9e70-ca1d7a413654/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 08:20:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 08:20:05,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 73 conjunts are in the unsatisfiable core [2023-12-02 08:20:05,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 08:20:07,126 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 08:20:07,127 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 08:20:08,730 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 08:20:08,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142977398] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 08:20:08,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [185971581] [2023-12-02 08:20:08,754 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2023-12-02 08:20:08,754 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 08:20:08,758 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 08:20:08,763 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 08:20:08,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 08:21:27,159 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 08:21:34,152 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 08:21:44,539 WARN L293 SmtUtils]: Spent 10.36s 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 08:21:51,839 WARN L293 SmtUtils]: Spent 7.29s 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 08:21:59,159 WARN L293 SmtUtils]: Spent 7.30s 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 08:22:09,579 WARN L293 SmtUtils]: Spent 10.41s 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 08:22:16,598 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 08:22:23,681 WARN L293 SmtUtils]: Spent 7.06s 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 08:22:34,420 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 08:22:41,635 WARN L293 SmtUtils]: Spent 7.20s 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 08:22:48,786 WARN L293 SmtUtils]: Spent 7.13s 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 08:22:59,122 WARN L293 SmtUtils]: Spent 10.32s 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 08:23:20,256 WARN L293 SmtUtils]: Spent 7.18s 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 08:24:29,747 WARN L293 SmtUtils]: Spent 7.48s 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 08:25:28,344 WARN L293 SmtUtils]: Spent 7.20s 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 08:26:35,122 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 08:27:17,121 WARN L293 SmtUtils]: Spent 9.19s 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 08:27:26,240 WARN L293 SmtUtils]: Spent 9.06s 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 08:27:49,205 WARN L293 SmtUtils]: Spent 6.84s 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 08:28:41,208 INFO L197 IcfgInterpreter]: Interpreting procedure aws_array_eq_c_str with input of size 49 for LOIs [2023-12-02 08:28:41,719 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 151 for LOIs [2023-12-02 08:28:42,184 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_uint64_t with input of size 48 for LOIs [2023-12-02 08:28:42,188 INFO L197 IcfgInterpreter]: Interpreting procedure save_byte_from_array with input of size 49 for LOIs [2023-12-02 08:28:42,214 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 88 for LOIs [2023-12-02 08:28:42,485 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 43 for LOIs [2023-12-02 08:28:42,490 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_malloc with input of size 2724 for LOIs [2023-12-02 08:29:54,318 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 08:31:43,944 WARN L293 SmtUtils]: Spent 6.81s 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 08:33:20,395 WARN L293 SmtUtils]: Spent 6.93s 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 08:33:27,442 WARN L293 SmtUtils]: Spent 7.02s 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 08:33:38,172 WARN L293 SmtUtils]: Spent 10.69s 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 08:33:45,215 WARN L293 SmtUtils]: Spent 7.03s 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 08:33:52,266 WARN L293 SmtUtils]: Spent 7.03s 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 08:34:02,745 WARN L293 SmtUtils]: Spent 10.47s 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)