./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:14:01,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:14:01,741 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:14:01,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:14:01,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:14:01,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:14:01,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:14:01,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:14:01,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:14:01,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:14:01,809 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:14:01,809 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:14:01,810 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:14:01,812 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:14:01,812 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:14:01,813 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:14:01,813 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:14:01,814 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:14:01,815 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:14:01,815 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:14:01,816 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:14:01,816 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:14:01,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:14:01,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:14:01,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:14:01,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:14:01,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:14:01,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:14:01,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:14:01,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:14:01,823 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:14:01,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:14:01,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:14:01,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:14:01,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:14:01,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:14:01,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:14:01,825 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:14:01,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:14:01,826 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:14:01,826 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:14:01,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:14:01,827 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_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2023-11-12 00:14:02,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:14:02,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:14:02,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:14:02,206 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:14:02,206 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:14:02,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2023-11-12 00:14:05,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:14:05,948 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:14:05,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2023-11-12 00:14:06,002 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/data/cd5626616/a01bf8803d7242498dac446fe6342074/FLAG8c829f921 [2023-11-12 00:14:06,016 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/data/cd5626616/a01bf8803d7242498dac446fe6342074 [2023-11-12 00:14:06,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:14:06,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:14:06,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:14:06,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:14:06,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:14:06,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:06" (1/1) ... [2023-11-12 00:14:06,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105eb8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:06, skipping insertion in model container [2023-11-12 00:14:06,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:06" (1/1) ... [2023-11-12 00:14:06,232 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:14:06,484 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_661fb0fe-24aa-4cbc-b86f-95109099341d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2023-11-12 00:14:06,493 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_661fb0fe-24aa-4cbc-b86f-95109099341d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2023-11-12 00:14:07,658 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:07,666 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:07,669 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:07,673 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:07,677 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:07,695 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:07,696 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:07,698 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:07,699 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,163 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:14:08,164 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:14:08,165 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:14:08,167 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:14:08,178 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:14:08,179 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:14:08,180 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:14:08,181 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:14:08,181 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:14:08,185 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:14:08,636 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,636 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:14:08,793 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:14:08,808 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_661fb0fe-24aa-4cbc-b86f-95109099341d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2023-11-12 00:14:08,808 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_661fb0fe-24aa-4cbc-b86f-95109099341d/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2023-11-12 00:14:08,844 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,844 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,845 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,846 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,846 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,853 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,854 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,855 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,855 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:08,896 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:14:08,897 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:14:08,898 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:14:08,899 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:14:08,900 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:14:08,901 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:14:08,902 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:14:08,902 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:14:08,903 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:14:08,903 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:14:09,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-12 00:14:09,034 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:09,034 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:14:09,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-12 00:14:09,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:14:09,373 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,374 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,374 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,374 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,374 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,375 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,376 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,376 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,376 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,376 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,377 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,378 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,378 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,378 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,379 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,381 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,381 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,381 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:09,389 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:14:09,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09 WrapperNode [2023-11-12 00:14:09,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:14:09,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:14:09,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:14:09,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:14:09,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,620 INFO L138 Inliner]: procedures = 689, calls = 2634, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 985 [2023-11-12 00:14:09,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:14:09,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:14:09,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:14:09,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:14:09,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:14:09,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:14:09,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:14:09,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:14:09,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (1/1) ... [2023-11-12 00:14:09,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:14:09,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:14:09,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:14:09,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:14:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2023-11-12 00:14:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2023-11-12 00:14:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-12 00:14:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-12 00:14:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:14:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:14:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:14:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-12 00:14:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:14:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:14:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:14:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:14:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:14:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:14:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:14:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:14:09,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:14:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:14:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:14:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:14:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:14:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:14:09,849 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-12 00:14:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-12 00:14:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:14:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:14:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:14:09,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:14:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:14:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:14:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:14:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:14:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:14:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:14:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2023-11-12 00:14:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:14:10,111 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:14:10,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:14:12,294 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:14:12,827 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:14:12,828 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:14:12,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:12 BoogieIcfgContainer [2023-11-12 00:14:12,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:14:12,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:14:12,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:14:12,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:14:12,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:14:06" (1/3) ... [2023-11-12 00:14:12,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500ba688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:12, skipping insertion in model container [2023-11-12 00:14:12,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:09" (2/3) ... [2023-11-12 00:14:12,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500ba688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:12, skipping insertion in model container [2023-11-12 00:14:12,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:12" (3/3) ... [2023-11-12 00:14:12,845 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2023-11-12 00:14:12,866 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:14:12,866 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:14:12,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:14:12,953 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;@6b9ac33a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:14:12,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:14:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 53 states have internal predecessors, (64), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 00:14:12,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 00:14:12,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:12,972 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:14:12,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:14:12,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:12,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1823916261, now seen corresponding path program 1 times [2023-11-12 00:14:12,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:12,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061892942] [2023-11-12 00:14:12,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:12,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:37,107 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-12 00:14:37,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:37,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061892942] [2023-11-12 00:14:37,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061892942] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:14:37,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442165626] [2023-11-12 00:14:37,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:37,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:14:37,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:14:37,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:14:37,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661fb0fe-24aa-4cbc-b86f-95109099341d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:14:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:37,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 2632 conjuncts, 137 conjunts are in the unsatisfiable core [2023-11-12 00:14:38,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:14:38,098 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 00:14:38,269 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-12 00:14:38,270 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-12 00:14:38,772 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 00:14:38,783 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 00:14:40,767 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:14:40,768 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-12 00:14:40,781 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:14:40,786 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-12 00:14:42,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:14:42,343 INFO L322 Elim1Store]: treesize reduction 216, result has 19.7 percent of original size [2023-11-12 00:14:42,344 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 44 treesize of output 71 [2023-11-12 00:14:42,545 INFO L322 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2023-11-12 00:14:42,546 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 34 treesize of output 52