./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.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_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/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_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/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_33826b22-e854-4d2b-91b0-a417a77c067e/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 b96165a3e213ff1fa45a224b7fdad32767a6b0e6009f7b9862ad018dc83e701d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:17,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:17,785 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:46:17,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:17,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:17,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:17,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:17,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:17,819 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:17,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:17,820 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:17,821 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:17,822 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:17,822 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:46:17,823 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:17,823 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:17,824 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:46:17,824 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:46:17,825 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:17,826 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:46:17,826 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:46:17,827 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:46:17,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:17,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:46:17,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:17,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:17,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:46:17,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:17,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:46:17,831 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:46:17,831 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:17,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:17,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:17,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:17,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:17,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:17,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:46:17,834 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:46:17,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:46:17,834 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:46:17,834 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:17,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:17,835 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_33826b22-e854-4d2b-91b0-a417a77c067e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b96165a3e213ff1fa45a224b7fdad32767a6b0e6009f7b9862ad018dc83e701d [2023-11-12 00:46:18,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:18,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:18,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:18,097 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:18,098 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:18,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2023-11-12 00:46:21,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:21,883 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:21,885 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2023-11-12 00:46:21,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/data/cc67f2a06/26a8eee7edd443b996b20412c5e9c5fe/FLAG2685ed154 [2023-11-12 00:46:21,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/data/cc67f2a06/26a8eee7edd443b996b20412c5e9c5fe [2023-11-12 00:46:21,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:21,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:21,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:21,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:21,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:21,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:21" (1/1) ... [2023-11-12 00:46:21,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c1df69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:21, skipping insertion in model container [2023-11-12 00:46:21,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:21" (1/1) ... [2023-11-12 00:46:22,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:22,436 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_33826b22-e854-4d2b-91b0-a417a77c067e/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4505,4518] [2023-11-12 00:46:22,447 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4565,4578] [2023-11-12 00:46:23,541 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:23,542 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:23,543 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:23,544 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:23,546 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:23,563 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:23,564 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:23,566 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:23,567 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,042 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:46:24,044 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:46:24,046 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:46:24,047 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:46:24,049 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:46:24,050 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:46:24,051 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:46:24,052 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:46:24,053 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:46:24,054 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:46:24,299 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,299 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,397 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,398 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:24,555 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:46:24,570 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_33826b22-e854-4d2b-91b0-a417a77c067e/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4505,4518] [2023-11-12 00:46:24,571 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_33826b22-e854-4d2b-91b0-a417a77c067e/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i[4565,4578] [2023-11-12 00:46:24,611 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,612 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,612 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,613 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,614 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,622 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,623 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,624 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,625 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,678 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-12 00:46:24,679 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-12 00:46:24,680 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-12 00:46:24,685 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-12 00:46:24,687 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-12 00:46:24,688 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-12 00:46:24,689 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-12 00:46:24,690 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-12 00:46:24,691 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-12 00:46:24,693 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-12 00:46:24,792 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,792 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8265] [2023-11-12 00:46:24,840 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,841 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-12 00:46:24,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8751-8762] [2023-11-12 00:46:24,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:25,200 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,200 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,201 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,201 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,201 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,201 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,201 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,202 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,202 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,202 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,202 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,202 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,203 WARN L672 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,203 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,203 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,203 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,203 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,204 WARN L672 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:25,212 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:46:25,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25 WrapperNode [2023-11-12 00:46:25,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:25,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:25,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:46:25,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:46:25,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,462 INFO L138 Inliner]: procedures = 690, calls = 2649, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 958 [2023-11-12 00:46:25,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:25,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:46:25,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:46:25,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:46:25,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,566 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:46:25,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:46:25,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:46:25,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:46:25,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:25,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:25,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:46:25,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:46:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-12 00:46:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-12 00:46:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-12 00:46:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-12 00:46:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:46:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-12 00:46:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-12 00:46:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:46:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-12 00:46:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-12 00:46:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:46:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:46:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:46:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:46:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:46:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:46:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:46:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-12 00:46:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-12 00:46:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:46:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:46:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:46:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-12 00:46:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-12 00:46:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:46:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:46:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-12 00:46:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-12 00:46:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-12 00:46:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-12 00:46:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2023-11-12 00:46:25,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2023-11-12 00:46:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-12 00:46:25,715 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-12 00:46:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:46:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:46:26,227 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:46:26,229 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:46:28,056 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:46:28,758 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:46:28,758 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:46:28,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:28 BoogieIcfgContainer [2023-11-12 00:46:28,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:46:28,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:46:28,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:46:28,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:46:28,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:46:21" (1/3) ... [2023-11-12 00:46:28,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f93b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:28, skipping insertion in model container [2023-11-12 00:46:28,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (2/3) ... [2023-11-12 00:46:28,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f93b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:28, skipping insertion in model container [2023-11-12 00:46:28,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:28" (3/3) ... [2023-11-12 00:46:28,773 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness_negated.i [2023-11-12 00:46:28,793 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:46:28,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:46:28,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:46:28,897 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;@7c84bce4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:46:28,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:46:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-12 00:46:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 00:46:28,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:28,917 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 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] [2023-11-12 00:46:28,918 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:28,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:28,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1913598143, now seen corresponding path program 1 times [2023-11-12 00:46:28,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:28,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532090158] [2023-11-12 00:46:28,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:28,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-12 00:46:38,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:38,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532090158] [2023-11-12 00:46:38,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532090158] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:46:38,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934482178] [2023-11-12 00:46:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:38,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:46:38,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:38,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:46:38,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33826b22-e854-4d2b-91b0-a417a77c067e/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:46:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:39,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-12 00:46:39,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:46:39,974 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-11-12 00:46:39,981 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-11-12 00:46:42,786 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:46:42,787 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 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 00:46:42,799 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 00:46:42,799 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 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 00:46:43,342 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 00:46:43,343 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2023-11-12 00:46:43,391 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:46:43,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:46:45,268 WARN L176 XnfTransformerHelper]: Simplifying conjunction of 11492 disjunctions. This might take some time... [2023-11-12 00:46:58,106 INFO L192 XnfTransformerHelper]: Simplified to conjunction of 10816 disjunctions.