./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.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_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/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_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/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_998c62d9-8c42-40c5-9106-3b3d369265bd/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 83ea83276c34d99791c615950bc2829f5984dafaf429e7a88fe36009fea1e8b3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:36:07,931 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:36:07,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 18:36:08,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:36:08,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:36:08,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:36:08,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:36:08,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:36:08,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:36:08,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:36:08,040 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:36:08,041 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:36:08,041 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:36:08,042 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:36:08,042 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:36:08,043 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:36:08,043 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:36:08,044 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:36:08,044 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:36:08,045 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:36:08,060 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:36:08,061 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:36:08,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:36:08,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:36:08,063 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:36:08,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:36:08,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:36:08,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:36:08,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:36:08,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:36:08,065 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:36:08,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:36:08,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:36:08,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:36:08,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:36:08,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:36:08,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:36:08,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:36:08,067 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:36:08,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:36:08,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:36:08,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:36:08,068 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:36:08,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:36:08,068 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_998c62d9-8c42-40c5-9106-3b3d369265bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83ea83276c34d99791c615950bc2829f5984dafaf429e7a88fe36009fea1e8b3 [2023-12-02 18:36:08,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:36:08,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:36:08,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:36:08,309 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:36:08,309 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:36:08,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i [2023-12-02 18:36:11,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:36:11,451 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:36:11,451 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i [2023-12-02 18:36:11,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/data/ce6acdbfb/5d0b031ddca041d1acae824185a47c15/FLAGd2c34781d [2023-12-02 18:36:11,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/data/ce6acdbfb/5d0b031ddca041d1acae824185a47c15 [2023-12-02 18:36:11,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:36:11,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:36:11,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:36:11,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:36:11,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:36:11,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:11" (1/1) ... [2023-12-02 18:36:11,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4aaff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:11, skipping insertion in model container [2023-12-02 18:36:11,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:11" (1/1) ... [2023-12-02 18:36:11,613 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:36:11,824 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4494,4507] [2023-12-02 18:36:11,830 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4554,4567] [2023-12-02 18:36:12,560 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:12,561 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:12,561 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:12,562 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:12,564 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:12,578 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:12,579 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:12,581 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:12,582 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:12,947 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 18:36:12,948 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 18:36:12,949 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 18:36:12,950 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 18:36:12,952 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 18:36:12,952 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 18:36:12,953 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 18:36:12,954 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 18:36:12,954 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 18:36:12,955 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 18:36:13,108 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,108 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:36:13,281 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:36:13,294 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4494,4507] [2023-12-02 18:36:13,295 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4554,4567] [2023-12-02 18:36:13,327 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,327 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,328 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,328 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,329 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,334 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,401 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 18:36:13,402 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 18:36:13,403 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 18:36:13,404 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 18:36:13,404 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 18:36:13,405 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 18:36:13,405 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 18:36:13,406 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 18:36:13,406 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 18:36:13,407 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 18:36:13,442 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,443 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8283] [2023-12-02 18:36:13,492 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,493 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:13,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8769-8780] [2023-12-02 18:36:13,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:36:13,764 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,765 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,765 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,765 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,765 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,765 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,765 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,765 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,765 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,766 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,766 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,766 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,766 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,766 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,766 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,766 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,766 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,766 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:13,773 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:36:13,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13 WrapperNode [2023-12-02 18:36:13,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:36:13,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:36:13,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:36:13,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:36:13,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:13,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:13,925 INFO L138 Inliner]: procedures = 691, calls = 2629, calls flagged for inlining = 59, calls inlined = 10, statements flattened = 967 [2023-12-02 18:36:13,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:36:13,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:36:13,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:36:13,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:36:13,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:13,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:13,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:13,945 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:13,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:13,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:13,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:13,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:14,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:36:14,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:36:14,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:36:14,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:36:14,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (1/1) ... [2023-12-02 18:36:14,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:36:14,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:36:14,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:36:14,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:36:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-12-02 18:36:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-12-02 18:36:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:36:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 18:36:14,073 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 18:36:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 18:36:14,073 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-12-02 18:36:14,074 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-12-02 18:36:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 18:36:14,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 18:36:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 18:36:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:36:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 18:36:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:36:14,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:36:14,074 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 18:36:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 18:36:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_realloc [2023-12-02 18:36:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_realloc [2023-12-02 18:36:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2023-12-02 18:36:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2023-12-02 18:36:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_reserve [2023-12-02 18:36:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_reserve [2023-12-02 18:36:14,075 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-12-02 18:36:14,075 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-12-02 18:36:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:36:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:36:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:36:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 18:36:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 18:36:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-12-02 18:36:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-12-02 18:36:14,076 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-12-02 18:36:14,076 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-12-02 18:36:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:36:14,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:36:14,328 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:36:14,331 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:36:15,410 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:36:15,615 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:36:15,615 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 18:36:15,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:15 BoogieIcfgContainer [2023-12-02 18:36:15,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:36:15,619 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:36:15,619 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:36:15,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:36:15,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:36:11" (1/3) ... [2023-12-02 18:36:15,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e37c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:15, skipping insertion in model container [2023-12-02 18:36:15,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:13" (2/3) ... [2023-12-02 18:36:15,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e37c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:15, skipping insertion in model container [2023-12-02 18:36:15,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:15" (3/3) ... [2023-12-02 18:36:15,624 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reserve_harness_negated.i [2023-12-02 18:36:15,638 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:36:15,638 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:36:15,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:36:15,697 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;@751e9f51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:36:15,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:36:15,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 69 states have internal predecessors, (86), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-02 18:36:15,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 18:36:15,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:15,711 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:36:15,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:15,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:15,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1828085980, now seen corresponding path program 1 times [2023-12-02 18:36:15,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:36:15,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892357749] [2023-12-02 18:36:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:15,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:36:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 18:36:16,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:36:16,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892357749] [2023-12-02 18:36:16,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892357749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:16,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:16,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:36:16,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356864873] [2023-12-02 18:36:16,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:16,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:36:16,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:36:16,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:36:16,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:36:16,292 INFO L87 Difference]: Start difference. First operand has 120 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 69 states have internal predecessors, (86), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 18:36:16,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:16,515 INFO L93 Difference]: Finished difference Result 219 states and 307 transitions. [2023-12-02 18:36:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:36:16,518 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2023-12-02 18:36:16,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:16,528 INFO L225 Difference]: With dead ends: 219 [2023-12-02 18:36:16,529 INFO L226 Difference]: Without dead ends: 116 [2023-12-02 18:36:16,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:36:16,536 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:16,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 18:36:16,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-12-02 18:36:16,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-12-02 18:36:16,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 66 states have internal predecessors, (76), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-02 18:36:16,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 151 transitions. [2023-12-02 18:36:16,602 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 151 transitions. Word has length 38 [2023-12-02 18:36:16,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:16,603 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 151 transitions. [2023-12-02 18:36:16,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 18:36:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 151 transitions. [2023-12-02 18:36:16,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 18:36:16,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:16,606 INFO L195 NwaCegarLoop]: trace histogram [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 18:36:16,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:36:16,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:16,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:16,607 INFO L85 PathProgramCache]: Analyzing trace with hash 796275759, now seen corresponding path program 1 times [2023-12-02 18:36:16,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:36:16,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779066778] [2023-12-02 18:36:16,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:16,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:36:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:17,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 18:36:17,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:36:17,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779066778] [2023-12-02 18:36:17,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779066778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:17,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:17,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 18:36:17,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999464417] [2023-12-02 18:36:17,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:17,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:36:17,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:36:17,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:36:17,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:36:17,135 INFO L87 Difference]: Start difference. First operand 116 states and 151 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 18:36:17,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:17,583 INFO L93 Difference]: Finished difference Result 155 states and 196 transitions. [2023-12-02 18:36:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:36:17,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) Word has length 41 [2023-12-02 18:36:17,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:17,586 INFO L225 Difference]: With dead ends: 155 [2023-12-02 18:36:17,586 INFO L226 Difference]: Without dead ends: 120 [2023-12-02 18:36:17,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:36:17,589 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:17,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 659 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 18:36:17,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-02 18:36:17,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-12-02 18:36:17,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 68 states have (on average 1.161764705882353) internal successors, (79), 69 states have internal predecessors, (79), 38 states have call successors, (38), 12 states have call predecessors, (38), 13 states have return successors, (38), 38 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-02 18:36:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 155 transitions. [2023-12-02 18:36:17,606 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 155 transitions. Word has length 41 [2023-12-02 18:36:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:17,607 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 155 transitions. [2023-12-02 18:36:17,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 18:36:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 155 transitions. [2023-12-02 18:36:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 18:36:17,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:17,609 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:36:17,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 18:36:17,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:17,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:17,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1488344067, now seen corresponding path program 1 times [2023-12-02 18:36:17,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:36:17,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799110291] [2023-12-02 18:36:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:17,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:36:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:36:19,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:36:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:36:20,654 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:36:20,654 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:36:20,656 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:36:20,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 18:36:20,660 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-02 18:36:20,663 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:36:20,708 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,708 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,709 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,709 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,709 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret478 could not be translated [2023-12-02 18:36:20,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ite480 [2023-12-02 18:36:20,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret478 could not be translated [2023-12-02 18:36:20,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem482 could not be translated [2023-12-02 18:36:20,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,713 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,713 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,714 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,714 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,714 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,715 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,715 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,715 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,716 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,716 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem482 could not be translated [2023-12-02 18:36:20,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret483 [2023-12-02 18:36:20,720 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,720 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,720 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,720 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1221 could not be translated [2023-12-02 18:36:20,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1221 could not be translated [2023-12-02 18:36:20,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,728 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,728 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1226 could not be translated [2023-12-02 18:36:20,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,732 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,732 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,732 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,732 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem960 [2023-12-02 18:36:20,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,734 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,734 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,734 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret961 could not be translated [2023-12-02 18:36:20,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1227 could not be translated [2023-12-02 18:36:20,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,738 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret1230 could not be translated [2023-12-02 18:36:20,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,739 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,741 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,741 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list [2023-12-02 18:36:20,741 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0!count [2023-12-02 18:36:20,741 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list [2023-12-02 18:36:20,741 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count [2023-12-02 18:36:20,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:36:20 BoogieIcfgContainer [2023-12-02 18:36:20,752 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:36:20,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:36:20,753 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:36:20,753 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:36:20,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:15" (3/4) ... [2023-12-02 18:36:20,755 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 18:36:20,755 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:36:20,756 INFO L158 Benchmark]: Toolchain (without parser) took 9264.15ms. Allocated memory was 132.1MB in the beginning and 350.2MB in the end (delta: 218.1MB). Free memory was 86.3MB in the beginning and 123.1MB in the end (delta: -36.8MB). Peak memory consumption was 184.5MB. Max. memory is 16.1GB. [2023-12-02 18:36:20,756 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:36:20,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2280.35ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 85.9MB in the beginning and 82.5MB in the end (delta: 3.5MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2023-12-02 18:36:20,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.91ms. Allocated memory is still 167.8MB. Free memory was 82.5MB in the beginning and 70.8MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 18:36:20,757 INFO L158 Benchmark]: Boogie Preprocessor took 83.33ms. Allocated memory is still 167.8MB. Free memory was 69.9MB in the beginning and 62.7MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 18:36:20,757 INFO L158 Benchmark]: RCFGBuilder took 1606.36ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 62.7MB in the beginning and 87.2MB in the end (delta: -24.6MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2023-12-02 18:36:20,758 INFO L158 Benchmark]: TraceAbstraction took 5132.76ms. Allocated memory was 216.0MB in the beginning and 350.2MB in the end (delta: 134.2MB). Free memory was 86.2MB in the beginning and 123.1MB in the end (delta: -36.9MB). Peak memory consumption was 146.6MB. Max. memory is 16.1GB. [2023-12-02 18:36:20,758 INFO L158 Benchmark]: Witness Printer took 3.16ms. Allocated memory is still 350.2MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:36:20,760 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 132.1MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2280.35ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 85.9MB in the beginning and 82.5MB in the end (delta: 3.5MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.91ms. Allocated memory is still 167.8MB. Free memory was 82.5MB in the beginning and 70.8MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.33ms. Allocated memory is still 167.8MB. Free memory was 69.9MB in the beginning and 62.7MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1606.36ms. Allocated memory was 167.8MB in the beginning and 216.0MB in the end (delta: 48.2MB). Free memory was 62.7MB in the beginning and 87.2MB in the end (delta: -24.6MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5132.76ms. Allocated memory was 216.0MB in the beginning and 350.2MB in the end (delta: 134.2MB). Free memory was 86.2MB in the beginning and 123.1MB in the end (delta: -36.9MB). Peak memory consumption was 146.6MB. Max. memory is 16.1GB. * Witness Printer took 3.16ms. Allocated memory is still 350.2MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 8283]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8283] - GenericResultAtLocation [Line: 8769]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8769-8780] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret478 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ite480 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret478 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem482 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem482 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret483 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1221 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1221 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1226 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem960 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret961 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1227 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret1230 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0.subject_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0!count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_list~0.error_list - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~s_common_log_subject_list~0!count - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of large string literal at line 8786. Possible FailurePath: [L6854-L6859] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7279] static __thread int tl_last_error = 0; [L7662-L7674] static const uint8_t s_tolower_table[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 91, 92, 93, 94, 95, 96, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255}; [L8785-L8933] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L8936-L8939] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L8941-L8950] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L8952-L8955] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L8957-L8961] static _Bool s_common_library_initialized = 0 ; [L8993] CALL aws_byte_buf_reserve_harness() [L8974] struct aws_byte_buf buf = {__VERIFIER_nondet_ulong(), 0, __VERIFIER_nondet_ulong(), 0}; [L8974] struct aws_byte_buf buf = {__VERIFIER_nondet_ulong(), 0, __VERIFIER_nondet_ulong(), 0}; [L8974] struct aws_byte_buf buf = {__VERIFIER_nondet_ulong(), 0, __VERIFIER_nondet_ulong(), 0}; [L8975] CALL ensure_byte_buf_has_allocated_buffer_member(&buf) [L6598] CALL, EXPR nondet_bool() VAL [errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L261] return __VERIFIER_nondet_bool(); [L6598] RET, EXPR nondet_bool() VAL [buf={258:0}, buf={258:0}, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L6598-L6600] EXPR (nondet_bool()) ? ((void *)0) : can_fail_allocator() VAL [buf={258:0}, buf={258:0}, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L6598-L6600] buf->allocator = (nondet_bool()) ? ((void *)0) : can_fail_allocator() [L6601] EXPR buf->capacity VAL [buf={258:0}, buf={258:0}, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L6601] CALL, EXPR bounded_malloc(sizeof(*(buf->buffer)) * buf->capacity) VAL [\old(size)=1, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L6871-L6873] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(cond)=1, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L211] COND FALSE !(!cond) [L6871-L6873] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(size)=1, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, size=1, tl_last_error=0] [L6874] return malloc(size); [L6601] RET, EXPR bounded_malloc(sizeof(*(buf->buffer)) * buf->capacity) VAL [buf={258:0}, buf={258:0}, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L6601] buf->buffer = bounded_malloc(sizeof(*(buf->buffer)) * buf->capacity) [L8975] RET ensure_byte_buf_has_allocated_buffer_member(&buf) [L8976] CALL, EXPR aws_byte_buf_is_valid(&buf) VAL [buf={258:0}, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L7391-L7394] EXPR buf && ((buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))))) [L7391] EXPR buf->capacity [L7391] EXPR buf->capacity == 0 && buf->len == 0 [L7391-L7392] EXPR buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) [L7391-L7394] EXPR (buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer)))) [L7394] EXPR buf->capacity [L7394] EXPR buf->capacity > 0 && buf->len <= buf->capacity [L7394] EXPR buf->len [L7394] EXPR buf->capacity [L7394] EXPR buf->capacity > 0 && buf->len <= buf->capacity [L7394] EXPR buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))) [L7394] EXPR buf->len [L7394] EXPR (((buf->len)) == 0) || ((buf->buffer)) [L7394] EXPR buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))) [L7391-L7394] EXPR (buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer)))) [L7391-L7394] EXPR buf && ((buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))))) [L7391-L7394] return buf && ((buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))))); [L8976] RET, EXPR aws_byte_buf_is_valid(&buf) VAL [buf={258:0}, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L8976] CALL assume_abort_if_not(aws_byte_buf_is_valid(&buf)) VAL [\old(cond)=1, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L211] COND FALSE !(!cond) [L8976] RET assume_abort_if_not(aws_byte_buf_is_valid(&buf)) VAL [buf={258:0}, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L8978] struct aws_byte_buf old = buf; VAL [buf={258:0}, errors={196:0}, old={257:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L8979] CALL, EXPR nondet_size_t() VAL [errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L263] return __VERIFIER_nondet_ulong(); [L8979] RET, EXPR nondet_size_t() VAL [buf={258:0}, errors={196:0}, old={257:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L8979] size_t requested_capacity = nondet_size_t(); [L8981] CALL, EXPR aws_byte_buf_reserve(&buf, requested_capacity) VAL [\old(tl_last_error)=0, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L8034] EXPR buffer->allocator VAL [\old(requested_capacity)=1073741828, \old(tl_last_error)=0, buffer={258:0}, buffer={258:0}, errors={196:0}, requested_capacity=1073741828, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L8034] COND TRUE !(buffer->allocator) [L8034] CALL, EXPR aws_raise_error(AWS_ERROR_INVALID_ARGUMENT) VAL [\old(tl_last_error)=0, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=0] [L1996] CALL aws_raise_error_private(err) [L7286] tl_last_error = err [L1996] RET aws_raise_error_private(err) [L1998] return (-1); [L8034] RET, EXPR aws_raise_error(AWS_ERROR_INVALID_ARGUMENT) VAL [\old(requested_capacity)=1073741828, \old(tl_last_error)=0, buffer={258:0}, buffer={258:0}, errors={196:0}, requested_capacity=1073741828, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=33] [L8034] return aws_raise_error(AWS_ERROR_INVALID_ARGUMENT); [L8981] RET, EXPR aws_byte_buf_reserve(&buf, requested_capacity) VAL [buf={258:0}, errors={196:0}, old={257:0}, requested_capacity=1073741828, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=33] [L8981] COND FALSE !(aws_byte_buf_reserve(&buf, requested_capacity) == (0)) [L8986] CALL, EXPR aws_byte_buf_is_valid(&buf) VAL [buf={258:0}, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=33] [L7391-L7394] EXPR buf && ((buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))))) [L7391] EXPR buf->capacity [L7391] EXPR buf->capacity == 0 && buf->len == 0 [L7391-L7392] EXPR buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) [L7391-L7394] EXPR (buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer)))) [L7394] EXPR buf->capacity [L7394] EXPR buf->capacity > 0 && buf->len <= buf->capacity [L7394] EXPR buf->len [L7394] EXPR buf->capacity [L7394] EXPR buf->capacity > 0 && buf->len <= buf->capacity [L7394] EXPR buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))) [L7394] EXPR buf->len [L7394] EXPR (((buf->len)) == 0) || ((buf->buffer)) [L7394] EXPR buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))) [L7391-L7394] EXPR (buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer)))) [L7391-L7394] EXPR buf && ((buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))))) [L7391-L7394] return buf && ((buf->capacity == 0 && buf->len == 0 && buf->buffer == ((void *)0) ) || (buf->capacity > 0 && buf->len <= buf->capacity && ((((buf->len)) == 0) || ((buf->buffer))))); [L8986] RET, EXPR aws_byte_buf_is_valid(&buf) VAL [buf={258:0}, errors={196:0}, old={257:0}, requested_capacity=1073741828, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=33] [L8986] CALL __VERIFIER_assert(!(aws_byte_buf_is_valid(&buf))) VAL [\old(cond)=0, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=33] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=33] [L223] reach_error() VAL [\old(cond)=0, cond=0, errors={196:0}, s_can_fail_allocator_static={194:0}, s_common_library_initialized=0, s_common_log_subject_infos={197:0}, s_tolower_table={195:0}, tl_last_error=33] - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 800 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 526 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 274 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 18:36:20,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/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_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/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 83ea83276c34d99791c615950bc2829f5984dafaf429e7a88fe36009fea1e8b3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:36:22,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:36:22,830 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 18:36:22,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:36:22,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:36:22,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:36:22,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:36:22,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:36:22,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:36:22,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:36:22,867 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:36:22,868 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:36:22,868 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:36:22,869 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:36:22,869 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:36:22,870 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:36:22,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:36:22,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:36:22,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:36:22,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:36:22,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:36:22,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:36:22,874 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:36:22,875 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:36:22,875 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:36:22,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:36:22,876 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:36:22,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:36:22,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:36:22,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:36:22,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:36:22,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:36:22,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:36:22,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:36:22,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:36:22,879 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:36:22,879 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:36:22,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:36:22,880 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:36:22,880 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:36:22,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:36:22,881 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_998c62d9-8c42-40c5-9106-3b3d369265bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83ea83276c34d99791c615950bc2829f5984dafaf429e7a88fe36009fea1e8b3 [2023-12-02 18:36:23,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:36:23,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:36:23,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:36:23,222 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:36:23,222 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:36:23,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i [2023-12-02 18:36:26,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:36:26,480 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:36:26,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i [2023-12-02 18:36:26,512 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/data/5e7dfba19/b99d7ebb87bd4f65af09340238fb8bf9/FLAG08daf84ca [2023-12-02 18:36:26,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/data/5e7dfba19/b99d7ebb87bd4f65af09340238fb8bf9 [2023-12-02 18:36:26,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:36:26,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:36:26,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:36:26,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:36:26,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:36:26,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:26" (1/1) ... [2023-12-02 18:36:26,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4f9983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:26, skipping insertion in model container [2023-12-02 18:36:26,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:36:26" (1/1) ... [2023-12-02 18:36:26,636 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:36:26,903 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4494,4507] [2023-12-02 18:36:26,912 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4554,4567] [2023-12-02 18:36:27,728 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:27,729 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:27,729 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:27,731 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:27,732 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:27,751 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:27,752 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:27,755 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:27,756 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,150 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 18:36:28,151 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 18:36:28,153 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 18:36:28,154 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 18:36:28,156 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 18:36:28,157 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 18:36:28,160 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 18:36:28,161 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 18:36:28,162 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 18:36:28,163 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 18:36:28,375 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,472 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,472 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:36:28,596 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 18:36:28,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:36:28,649 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4494,4507] [2023-12-02 18:36:28,649 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4554,4567] [2023-12-02 18:36:28,707 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,708 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,708 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,709 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,709 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,715 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,716 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,717 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,751 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 18:36:28,752 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 18:36:28,753 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 18:36:28,754 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 18:36:28,755 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 18:36:28,755 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 18:36:28,756 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 18:36:28,756 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 18:36:28,757 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 18:36:28,757 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 18:36:28,789 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,790 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,826 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,827 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:36:28,885 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:36:28,898 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4494,4507] [2023-12-02 18:36:28,899 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_998c62d9-8c42-40c5-9106-3b3d369265bd/sv-benchmarks/c/aws-c-common/aws_byte_buf_reserve_harness_negated.i[4554,4567] [2023-12-02 18:36:28,957 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,957 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,958 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,958 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,959 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,964 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,965 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,965 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,966 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:28,997 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 18:36:28,998 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 18:36:28,998 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 18:36:28,999 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 18:36:29,000 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 18:36:29,000 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 18:36:29,000 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 18:36:29,001 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 18:36:29,001 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 18:36:29,002 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 18:36:29,028 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:29,028 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:29,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8283] [2023-12-02 18:36:29,062 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:29,062 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 18:36:29,072 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8769-8780] [2023-12-02 18:36:29,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:36:29,293 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,293 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,293 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,293 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,294 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,294 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,294 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,294 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,294 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,294 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,295 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,295 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,295 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,295 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,295 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,295 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,296 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,296 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:36:29,303 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:36:29,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29 WrapperNode [2023-12-02 18:36:29,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:36:29,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:36:29,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:36:29,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:36:29,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,405 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,475 INFO L138 Inliner]: procedures = 711, calls = 2629, calls flagged for inlining = 59, calls inlined = 10, statements flattened = 963 [2023-12-02 18:36:29,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:36:29,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:36:29,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:36:29,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:36:29,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:36:29,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:36:29,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:36:29,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:36:29,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (1/1) ... [2023-12-02 18:36:29,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:36:29,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:36:29,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:36:29,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:36:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-12-02 18:36:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-12-02 18:36:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:36:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-12-02 18:36:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-12-02 18:36:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 18:36:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 18:36:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2023-12-02 18:36:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-12-02 18:36:29,635 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-12-02 18:36:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 18:36:29,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 18:36:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 18:36:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:36:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 18:36:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:36:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:36:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 18:36:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 18:36:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 18:36:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_realloc [2023-12-02 18:36:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_realloc [2023-12-02 18:36:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-12-02 18:36:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2023-12-02 18:36:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2023-12-02 18:36:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_reserve [2023-12-02 18:36:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_reserve [2023-12-02 18:36:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-12-02 18:36:29,637 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-12-02 18:36:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 18:36:29,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 18:36:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:36:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 18:36:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-12-02 18:36:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 18:36:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-12-02 18:36:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-12-02 18:36:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-12-02 18:36:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-12-02 18:36:29,882 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:36:29,884 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:36:31,436 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:36:31,643 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:36:31,643 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 18:36:31,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:31 BoogieIcfgContainer [2023-12-02 18:36:31,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:36:31,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:36:31,646 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:36:31,648 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:36:31,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:36:26" (1/3) ... [2023-12-02 18:36:31,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef0426a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:31, skipping insertion in model container [2023-12-02 18:36:31,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:36:29" (2/3) ... [2023-12-02 18:36:31,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef0426a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:36:31, skipping insertion in model container [2023-12-02 18:36:31,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:36:31" (3/3) ... [2023-12-02 18:36:31,651 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reserve_harness_negated.i [2023-12-02 18:36:31,666 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:36:31,667 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:36:31,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:36:31,714 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;@420650cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:36:31,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:36:31,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 91 states have (on average 1.3296703296703296) internal successors, (121), 91 states have internal predecessors, (121), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-02 18:36:31,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 18:36:31,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:31,731 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-12-02 18:36:31,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:31,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:31,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2044203332, now seen corresponding path program 1 times [2023-12-02 18:36:31,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:31,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873218069] [2023-12-02 18:36:31,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:31,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:36:31,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:31,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:36:31,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 18:36:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:32,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 18:36:32,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 18:36:32,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:32,725 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:32,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873218069] [2023-12-02 18:36:32,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873218069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:32,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:32,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:36:32,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542847360] [2023-12-02 18:36:32,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:32,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:36:32,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:32,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:36:32,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:36:32,758 INFO L87 Difference]: Start difference. First operand has 142 states, 91 states have (on average 1.3296703296703296) internal successors, (121), 91 states have internal predecessors, (121), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 18:36:33,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:33,369 INFO L93 Difference]: Finished difference Result 275 states and 401 transitions. [2023-12-02 18:36:33,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:36:33,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2023-12-02 18:36:33,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:33,380 INFO L225 Difference]: With dead ends: 275 [2023-12-02 18:36:33,380 INFO L226 Difference]: Without dead ends: 138 [2023-12-02 18:36:33,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:36:33,389 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:33,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 18:36:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-02 18:36:33,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-12-02 18:36:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-02 18:36:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 185 transitions. [2023-12-02 18:36:33,439 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 185 transitions. Word has length 46 [2023-12-02 18:36:33,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:33,441 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 185 transitions. [2023-12-02 18:36:33,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-02 18:36:33,442 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 185 transitions. [2023-12-02 18:36:33,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 18:36:33,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:33,445 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:36:33,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:36:33,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:36:33,646 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:33,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:33,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1132297525, now seen corresponding path program 1 times [2023-12-02 18:36:33,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:33,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199789984] [2023-12-02 18:36:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:33,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:36:33,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:33,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:36:33,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 18:36:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:34,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 18:36:34,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:34,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:36:34,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:34,584 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:34,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199789984] [2023-12-02 18:36:34,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199789984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:34,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:34,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:36:34,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110446997] [2023-12-02 18:36:34,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:34,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:36:34,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:34,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:36:34,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:36:34,588 INFO L87 Difference]: Start difference. First operand 138 states and 185 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-02 18:36:35,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:35,956 INFO L93 Difference]: Finished difference Result 265 states and 359 transitions. [2023-12-02 18:36:35,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 18:36:35,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 46 [2023-12-02 18:36:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:35,961 INFO L225 Difference]: With dead ends: 265 [2023-12-02 18:36:35,961 INFO L226 Difference]: Without dead ends: 140 [2023-12-02 18:36:35,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:36:35,964 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 34 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:35,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 585 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 18:36:35,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-02 18:36:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-12-02 18:36:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 88 states have (on average 1.2613636363636365) internal successors, (111), 90 states have internal predecessors, (111), 38 states have call successors, (38), 12 states have call predecessors, (38), 13 states have return successors, (41), 37 states have call predecessors, (41), 37 states have call successors, (41) [2023-12-02 18:36:35,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2023-12-02 18:36:35,985 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 46 [2023-12-02 18:36:35,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:35,985 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2023-12-02 18:36:35,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-02 18:36:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2023-12-02 18:36:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 18:36:35,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:35,988 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:36:36,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 18:36:36,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:36:36,193 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:36,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:36,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1100834168, now seen corresponding path program 1 times [2023-12-02 18:36:36,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:36,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970203985] [2023-12-02 18:36:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:36,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:36:36,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:36,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:36:36,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 18:36:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:36,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:36:36,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:36:36,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:36,998 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:36,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970203985] [2023-12-02 18:36:36,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970203985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:36,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:36,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:36:36,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356175156] [2023-12-02 18:36:36,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:36,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:36:36,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:37,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:36:37,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:36:37,000 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:36:38,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:38,323 INFO L93 Difference]: Finished difference Result 289 states and 400 transitions. [2023-12-02 18:36:38,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 18:36:38,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-12-02 18:36:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:38,326 INFO L225 Difference]: With dead ends: 289 [2023-12-02 18:36:38,326 INFO L226 Difference]: Without dead ends: 162 [2023-12-02 18:36:38,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:36:38,328 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 42 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:38,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 523 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 18:36:38,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-02 18:36:38,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 142. [2023-12-02 18:36:38,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 90 states have (on average 1.2555555555555555) internal successors, (113), 92 states have internal predecessors, (113), 38 states have call successors, (38), 12 states have call predecessors, (38), 13 states have return successors, (41), 37 states have call predecessors, (41), 37 states have call successors, (41) [2023-12-02 18:36:38,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 192 transitions. [2023-12-02 18:36:38,347 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 192 transitions. Word has length 52 [2023-12-02 18:36:38,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:38,347 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 192 transitions. [2023-12-02 18:36:38,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:36:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 192 transitions. [2023-12-02 18:36:38,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 18:36:38,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:38,350 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:36:38,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 18:36:38,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:36:38,551 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:38,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:38,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1802434042, now seen corresponding path program 1 times [2023-12-02 18:36:38,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:38,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072867972] [2023-12-02 18:36:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:38,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:36:38,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:38,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:36:38,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 18:36:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:39,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 18:36:39,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:39,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:36:39,347 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:39,347 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:39,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072867972] [2023-12-02 18:36:39,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072867972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:39,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:39,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:36:39,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647341841] [2023-12-02 18:36:39,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:39,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:36:39,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:39,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:36:39,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:36:39,349 INFO L87 Difference]: Start difference. First operand 142 states and 192 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:36:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:36:40,763 INFO L93 Difference]: Finished difference Result 291 states and 401 transitions. [2023-12-02 18:36:40,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 18:36:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-12-02 18:36:40,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:36:40,765 INFO L225 Difference]: With dead ends: 291 [2023-12-02 18:36:40,765 INFO L226 Difference]: Without dead ends: 162 [2023-12-02 18:36:40,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:36:40,767 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 55 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:36:40,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 680 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-02 18:36:40,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-02 18:36:40,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 144. [2023-12-02 18:36:40,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 92 states have (on average 1.25) internal successors, (115), 94 states have internal predecessors, (115), 38 states have call successors, (38), 12 states have call predecessors, (38), 13 states have return successors, (41), 37 states have call predecessors, (41), 37 states have call successors, (41) [2023-12-02 18:36:40,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 194 transitions. [2023-12-02 18:36:40,792 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 194 transitions. Word has length 52 [2023-12-02 18:36:40,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:36:40,792 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 194 transitions. [2023-12-02 18:36:40,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:36:40,792 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 194 transitions. [2023-12-02 18:36:40,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 18:36:40,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:36:40,794 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:36:40,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-02 18:36:40,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:36:40,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:36:40,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:36:40,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1173220726, now seen corresponding path program 1 times [2023-12-02 18:36:40,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:36:40,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851465660] [2023-12-02 18:36:40,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:36:40,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:36:40,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:36:40,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:36:40,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 18:36:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:36:41,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 18:36:41,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:36:41,920 INFO L378 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 15 treesize of output 1 [2023-12-02 18:36:42,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:36:42,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:36:42,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:36:42,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851465660] [2023-12-02 18:36:42,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851465660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:36:42,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:36:42,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 18:36:42,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942350354] [2023-12-02 18:36:42,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:36:42,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 18:36:42,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:36:42,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 18:36:42,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-02 18:36:42,467 INFO L87 Difference]: Start difference. First operand 144 states and 194 transitions. Second operand has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 18:36:44,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:36:48,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:36:51,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:36:55,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:36:57,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:00,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:02,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:04,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:07,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:07,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:37:07,705 INFO L93 Difference]: Finished difference Result 353 states and 469 transitions. [2023-12-02 18:37:07,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 18:37:07,705 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 52 [2023-12-02 18:37:07,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:37:07,708 INFO L225 Difference]: With dead ends: 353 [2023-12-02 18:37:07,708 INFO L226 Difference]: Without dead ends: 222 [2023-12-02 18:37:07,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-12-02 18:37:07,710 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 184 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2023-12-02 18:37:07,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 955 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 645 Invalid, 8 Unknown, 0 Unchecked, 24.9s Time] [2023-12-02 18:37:07,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-12-02 18:37:07,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 220. [2023-12-02 18:37:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 144 states have (on average 1.2361111111111112) internal successors, (178), 149 states have internal predecessors, (178), 52 states have call successors, (52), 18 states have call predecessors, (52), 23 states have return successors, (61), 52 states have call predecessors, (61), 50 states have call successors, (61) [2023-12-02 18:37:07,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 291 transitions. [2023-12-02 18:37:07,737 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 291 transitions. Word has length 52 [2023-12-02 18:37:07,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:37:07,737 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 291 transitions. [2023-12-02 18:37:07,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 18:37:07,738 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 291 transitions. [2023-12-02 18:37:07,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 18:37:07,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:37:07,740 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:37:07,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 18:37:07,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:07,948 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:37:07,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:37:07,949 INFO L85 PathProgramCache]: Analyzing trace with hash -496249854, now seen corresponding path program 1 times [2023-12-02 18:37:07,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:37:07,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425574675] [2023-12-02 18:37:07,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:37:07,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:07,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:37:07,951 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:37:07,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-02 18:37:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:37:08,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 18:37:08,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:37:08,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 18:37:08,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:37:08,744 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:37:08,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425574675] [2023-12-02 18:37:08,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425574675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:37:08,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:37:08,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 18:37:08,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775605058] [2023-12-02 18:37:08,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:37:08,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 18:37:08,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:37:08,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 18:37:08,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-02 18:37:08,747 INFO L87 Difference]: Start difference. First operand 220 states and 291 transitions. Second operand has 9 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-02 18:37:12,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:37:12,192 INFO L93 Difference]: Finished difference Result 435 states and 578 transitions. [2023-12-02 18:37:12,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 18:37:12,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 56 [2023-12-02 18:37:12,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:37:12,195 INFO L225 Difference]: With dead ends: 435 [2023-12-02 18:37:12,195 INFO L226 Difference]: Without dead ends: 228 [2023-12-02 18:37:12,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-02 18:37:12,198 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 13 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:37:12,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1279 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-02 18:37:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-02 18:37:12,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 221. [2023-12-02 18:37:12,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 145 states have (on average 1.2344827586206897) internal successors, (179), 150 states have internal predecessors, (179), 52 states have call successors, (52), 18 states have call predecessors, (52), 23 states have return successors, (61), 52 states have call predecessors, (61), 50 states have call successors, (61) [2023-12-02 18:37:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 292 transitions. [2023-12-02 18:37:12,240 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 292 transitions. Word has length 56 [2023-12-02 18:37:12,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:37:12,241 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 292 transitions. [2023-12-02 18:37:12,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-02 18:37:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 292 transitions. [2023-12-02 18:37:12,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 18:37:12,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:37:12,243 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 18:37:12,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-02 18:37:12,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:12,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:37:12,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:37:12,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1391837671, now seen corresponding path program 1 times [2023-12-02 18:37:12,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:37:12,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075867590] [2023-12-02 18:37:12,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:37:12,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:12,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:37:12,456 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:37:12,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 18:37:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:37:13,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 18:37:13,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:37:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 18:37:13,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:37:13,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:37:13,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075867590] [2023-12-02 18:37:13,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075867590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:37:13,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:37:13,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 18:37:13,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995733933] [2023-12-02 18:37:13,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:37:13,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 18:37:13,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:37:13,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 18:37:13,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:37:13,287 INFO L87 Difference]: Start difference. First operand 221 states and 292 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 18:37:15,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:37:15,253 INFO L93 Difference]: Finished difference Result 343 states and 439 transitions. [2023-12-02 18:37:15,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:37:15,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) Word has length 58 [2023-12-02 18:37:15,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:37:15,256 INFO L225 Difference]: With dead ends: 343 [2023-12-02 18:37:15,256 INFO L226 Difference]: Without dead ends: 227 [2023-12-02 18:37:15,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 18:37:15,258 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 18:37:15,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 854 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 18:37:15,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-12-02 18:37:15,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2023-12-02 18:37:15,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 149 states have (on average 1.2281879194630871) internal successors, (183), 154 states have internal predecessors, (183), 52 states have call successors, (52), 18 states have call predecessors, (52), 25 states have return successors, (63), 54 states have call predecessors, (63), 50 states have call successors, (63) [2023-12-02 18:37:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 298 transitions. [2023-12-02 18:37:15,279 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 298 transitions. Word has length 58 [2023-12-02 18:37:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:37:15,279 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 298 transitions. [2023-12-02 18:37:15,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 18:37:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 298 transitions. [2023-12-02 18:37:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 18:37:15,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:37:15,281 INFO L195 NwaCegarLoop]: trace histogram [2, 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 18:37:15,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-02 18:37:15,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:15,482 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:37:15,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:37:15,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1364900629, now seen corresponding path program 1 times [2023-12-02 18:37:15,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:37:15,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785022435] [2023-12-02 18:37:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:37:15,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:15,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:37:15,486 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:37:15,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 18:37:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:37:16,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 18:37:16,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:37:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 18:37:16,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:37:16,411 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:37:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785022435] [2023-12-02 18:37:16,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785022435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:37:16,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:37:16,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 18:37:16,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872053935] [2023-12-02 18:37:16,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:37:16,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 18:37:16,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:37:16,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 18:37:16,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:37:16,414 INFO L87 Difference]: Start difference. First operand 227 states and 298 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-02 18:37:19,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:37:19,068 INFO L93 Difference]: Finished difference Result 440 states and 578 transitions. [2023-12-02 18:37:19,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:37:19,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 65 [2023-12-02 18:37:19,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:37:19,072 INFO L225 Difference]: With dead ends: 440 [2023-12-02 18:37:19,072 INFO L226 Difference]: Without dead ends: 306 [2023-12-02 18:37:19,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:37:19,074 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 129 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-02 18:37:19,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 776 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-02 18:37:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-02 18:37:19,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 302. [2023-12-02 18:37:19,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 207 states have (on average 1.2657004830917875) internal successors, (262), 214 states have internal predecessors, (262), 67 states have call successors, (67), 20 states have call predecessors, (67), 27 states have return successors, (79), 67 states have call predecessors, (79), 61 states have call successors, (79) [2023-12-02 18:37:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 408 transitions. [2023-12-02 18:37:19,100 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 408 transitions. Word has length 65 [2023-12-02 18:37:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:37:19,101 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 408 transitions. [2023-12-02 18:37:19,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-02 18:37:19,101 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 408 transitions. [2023-12-02 18:37:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 18:37:19,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:37:19,103 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 18:37:19,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-02 18:37:19,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:19,303 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:37:19,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:37:19,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1598142897, now seen corresponding path program 1 times [2023-12-02 18:37:19,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:37:19,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719567579] [2023-12-02 18:37:19,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:37:19,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:19,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:37:19,306 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:37:19,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 18:37:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:37:20,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 18:37:20,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:37:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 18:37:20,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:37:20,225 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:37:20,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719567579] [2023-12-02 18:37:20,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719567579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:37:20,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:37:20,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 18:37:20,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002215897] [2023-12-02 18:37:20,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:37:20,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 18:37:20,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:37:20,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 18:37:20,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:37:20,227 INFO L87 Difference]: Start difference. First operand 302 states and 408 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 18:37:22,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:37:22,278 INFO L93 Difference]: Finished difference Result 351 states and 457 transitions. [2023-12-02 18:37:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:37:22,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 66 [2023-12-02 18:37:22,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:37:22,281 INFO L225 Difference]: With dead ends: 351 [2023-12-02 18:37:22,281 INFO L226 Difference]: Without dead ends: 223 [2023-12-02 18:37:22,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:37:22,282 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 92 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:37:22,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 676 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-02 18:37:22,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-12-02 18:37:22,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2023-12-02 18:37:22,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 147 states have (on average 1.217687074829932) internal successors, (179), 150 states have internal predecessors, (179), 52 states have call successors, (52), 18 states have call predecessors, (52), 23 states have return successors, (58), 54 states have call predecessors, (58), 50 states have call successors, (58) [2023-12-02 18:37:22,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 289 transitions. [2023-12-02 18:37:22,302 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 289 transitions. Word has length 66 [2023-12-02 18:37:22,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:37:22,303 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 289 transitions. [2023-12-02 18:37:22,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-02 18:37:22,303 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 289 transitions. [2023-12-02 18:37:22,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 18:37:22,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:37:22,304 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2023-12-02 18:37:22,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-02 18:37:22,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:22,512 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:37:22,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:37:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1429301780, now seen corresponding path program 1 times [2023-12-02 18:37:22,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:37:22,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [597837690] [2023-12-02 18:37:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:37:22,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:37:22,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:37:22,515 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:37:22,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 18:37:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:37:23,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 18:37:23,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:37:25,404 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:37:25,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:37:27,393 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:37:27,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [597837690] [2023-12-02 18:37:27,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [597837690] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:37:27,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1344333191] [2023-12-02 18:37:27,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:37:27,394 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:37:27,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:37:27,395 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:37:27,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 18:37:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:37:29,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 18:37:29,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:37:30,454 INFO L378 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 15 treesize of output 1 [2023-12-02 18:37:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 18:37:33,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 18:37:33,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1344333191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:37:33,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 18:37:33,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 22 [2023-12-02 18:37:33,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341146474] [2023-12-02 18:37:33,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:37:33,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 18:37:33,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 18:37:33,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 18:37:33,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2023-12-02 18:37:33,565 INFO L87 Difference]: Start difference. First operand 223 states and 289 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-02 18:37:39,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:42,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:47,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:49,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:51,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:54,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:56,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:37:59,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:38:02,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 18:38:02,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:38:02,449 INFO L93 Difference]: Finished difference Result 254 states and 325 transitions. [2023-12-02 18:38:02,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 18:38:02,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 69 [2023-12-02 18:38:02,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:38:02,452 INFO L225 Difference]: With dead ends: 254 [2023-12-02 18:38:02,452 INFO L226 Difference]: Without dead ends: 228 [2023-12-02 18:38:02,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 123 SyntacticMatches, 10 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=139, Invalid=983, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 18:38:02,453 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 235 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 132 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:38:02,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 495 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 907 Invalid, 18 Unknown, 0 Unchecked, 28.0s Time] [2023-12-02 18:38:02,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-02 18:38:02,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 226. [2023-12-02 18:38:02,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 149 states have (on average 1.2147651006711409) internal successors, (181), 153 states have internal predecessors, (181), 52 states have call successors, (52), 18 states have call predecessors, (52), 24 states have return successors, (61), 54 states have call predecessors, (61), 50 states have call successors, (61) [2023-12-02 18:38:02,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 294 transitions. [2023-12-02 18:38:02,473 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 294 transitions. Word has length 69 [2023-12-02 18:38:02,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:38:02,474 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 294 transitions. [2023-12-02 18:38:02,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 5 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-12-02 18:38:02,474 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 294 transitions. [2023-12-02 18:38:02,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 18:38:02,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:38:02,476 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2023-12-02 18:38:02,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 18:38:02,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-02 18:38:02,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:38:02,876 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:38:02,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:38:02,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1673592374, now seen corresponding path program 1 times [2023-12-02 18:38:02,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 18:38:02,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654326419] [2023-12-02 18:38:02,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:38:02,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 18:38:02,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 18:38:02,879 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 18:38:02,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998c62d9-8c42-40c5-9106-3b3d369265bd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-02 18:38:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:38:03,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 18:38:03,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:38:06,149 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 18:38:06,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:38:16,671 WARN L293 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 250 DAG size of output: 227 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 18:38:16,672 INFO L349 Elim1Store]: treesize reduction 81, result has 90.1 percent of original size [2023-12-02 18:38:16,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771