./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/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 b2aa49e297f60cfce052f243c4868c3f21a4b7a15679d0734b9f9fae5c35ea17 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:56:38,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:56:38,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 16:56:38,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:56:38,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:56:39,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:56:39,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:56:39,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:56:39,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:56:39,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:56:39,012 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:56:39,013 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:56:39,013 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:56:39,014 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:56:39,014 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:56:39,014 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:56:39,015 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:56:39,015 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:56:39,016 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:56:39,016 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:56:39,017 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:56:39,018 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:56:39,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:56:39,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:56:39,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:56:39,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:56:39,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:56:39,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:56:39,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:56:39,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:56:39,022 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:56:39,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:56:39,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:56:39,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:56:39,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:56:39,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:56:39,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:56:39,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:56:39,024 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:56:39,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:56:39,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:56:39,025 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:56:39,025 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:56:39,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:56:39,025 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2aa49e297f60cfce052f243c4868c3f21a4b7a15679d0734b9f9fae5c35ea17 [2023-12-02 16:56:39,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:56:39,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:56:39,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:56:39,282 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:56:39,282 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:56:39,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2023-12-02 16:56:42,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:56:42,777 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:56:42,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2023-12-02 16:56:42,812 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/data/06a0f4dc1/9dd9b88503e34fa09e094f2ec6ad454f/FLAG829489f06 [2023-12-02 16:56:42,826 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/data/06a0f4dc1/9dd9b88503e34fa09e094f2ec6ad454f [2023-12-02 16:56:42,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:56:42,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:56:42,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:56:42,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:56:42,848 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:56:42,849 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:56:42" (1/1) ... [2023-12-02 16:56:42,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d587fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:42, skipping insertion in model container [2023-12-02 16:56:42,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:56:42" (1/1) ... [2023-12-02 16:56:43,004 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:56:43,255 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2023-12-02 16:56:43,262 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2023-12-02 16:56:44,112 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,113 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,114 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,115 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,116 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,132 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,133 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,135 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,136 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,138 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,139 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,140 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,140 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:44,578 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 16:56:44,579 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 16:56:44,580 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 16:56:44,581 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 16:56:44,583 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 16:56:44,584 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 16:56:44,585 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 16:56:44,585 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 16:56:44,586 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 16:56:44,587 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 16:56:45,114 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,114 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,137 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,138 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,145 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,145 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,160 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,160 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,161 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,161 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,161 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:56:45,295 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:56:45,318 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2023-12-02 16:56:45,319 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2023-12-02 16:56:45,353 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,354 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,354 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,361 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,362 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,363 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,363 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,364 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,364 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,365 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,365 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,396 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 16:56:45,397 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 16:56:45,397 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 16:56:45,398 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 16:56:45,399 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 16:56:45,399 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 16:56:45,400 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 16:56:45,400 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 16:56:45,401 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 16:56:45,401 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 16:56:45,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2023-12-02 16:56:45,514 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,514 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,522 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,522 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,526 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,526 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,535 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,536 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,537 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,537 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,538 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,538 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,538 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 16:56:45,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:56:45,890 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,891 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,892 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,892 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,892 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,892 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,892 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,892 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,892 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:56:45,900 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:56:45,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45 WrapperNode [2023-12-02 16:56:45,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:56:45,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:56:45,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:56:45,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:56:45,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,087 INFO L138 Inliner]: procedures = 772, calls = 2456, calls flagged for inlining = 69, calls inlined = 20, statements flattened = 860 [2023-12-02 16:56:46,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:56:46,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:56:46,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:56:46,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:56:46,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:56:46,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:56:46,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:56:46,182 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:56:46,183 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (1/1) ... [2023-12-02 16:56:46,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:56:46,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:56:46,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:56:46,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 16:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 16:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-12-02 16:56:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-12-02 16:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 16:56:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 16:56:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-12-02 16:56:46,257 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-12-02 16:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 16:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 16:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:56:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-12-02 16:56:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-12-02 16:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-12-02 16:56:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-12-02 16:56:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 16:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-12-02 16:56:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-12-02 16:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 16:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-12-02 16:56:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-12-02 16:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_find [2023-12-02 16:56:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_find [2023-12-02 16:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:56:46,259 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2023-12-02 16:56:46,259 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2023-12-02 16:56:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-12-02 16:56:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-12-02 16:56:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2023-12-02 16:56:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2023-12-02 16:56:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2023-12-02 16:56:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2023-12-02 16:56:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 16:56:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-12-02 16:56:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-12-02 16:56:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2023-12-02 16:56:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2023-12-02 16:56:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2023-12-02 16:56:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2023-12-02 16:56:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2023-12-02 16:56:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2023-12-02 16:56:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:56:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:56:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-12-02 16:56:46,261 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-12-02 16:56:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 16:56:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-12-02 16:56:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-12-02 16:56:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-12-02 16:56:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-12-02 16:56:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure uninterpreted_equals [2023-12-02 16:56:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure uninterpreted_equals [2023-12-02 16:56:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 16:56:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 16:56:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:56:46,577 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:56:46,580 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:56:46,706 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2023-12-02 16:56:46,749 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2023-12-02 16:56:47,006 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !true; [2023-12-02 16:56:47,460 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:56:47,715 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:56:47,716 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-12-02 16:56:47,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:56:47 BoogieIcfgContainer [2023-12-02 16:56:47,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:56:47,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:56:47,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:56:47,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:56:47,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:56:42" (1/3) ... [2023-12-02 16:56:47,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a29208f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:56:47, skipping insertion in model container [2023-12-02 16:56:47,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:56:45" (2/3) ... [2023-12-02 16:56:47,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a29208f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:56:47, skipping insertion in model container [2023-12-02 16:56:47,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:56:47" (3/3) ... [2023-12-02 16:56:47,726 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_find_harness.i [2023-12-02 16:56:47,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:56:47,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:56:47,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:56:47,803 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;@45eeaa00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:56:47,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:56:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 109 states have internal predecessors, (134), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-02 16:56:47,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-02 16:56:47,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:56:47,826 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 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 16:56:47,826 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:56:47,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:56:47,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1254970145, now seen corresponding path program 1 times [2023-12-02 16:56:47,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:56:47,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655027599] [2023-12-02 16:56:47,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:56:47,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:56:48,193 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:56:48,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283141341] [2023-12-02 16:56:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:56:48,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:56:48,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:56:48,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:56:48,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:56:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:56:48,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 2591 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 16:56:48,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:56:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-02 16:56:49,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:56:49,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:56:49,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655027599] [2023-12-02 16:56:49,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:56:49,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283141341] [2023-12-02 16:56:49,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283141341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:56:49,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:56:49,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:56:49,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588395814] [2023-12-02 16:56:49,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:56:49,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:56:49,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:56:49,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:56:49,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:56:49,093 INFO L87 Difference]: Start difference. First operand has 200 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 109 states have internal predecessors, (134), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 16:56:49,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:56:49,607 INFO L93 Difference]: Finished difference Result 396 states and 554 transitions. [2023-12-02 16:56:49,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:56:49,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 131 [2023-12-02 16:56:49,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:56:49,624 INFO L225 Difference]: With dead ends: 396 [2023-12-02 16:56:49,625 INFO L226 Difference]: Without dead ends: 202 [2023-12-02 16:56:49,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 16:56:49,633 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:56:49,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 912 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 16:56:49,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-12-02 16:56:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2023-12-02 16:56:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 110 states have (on average 1.190909090909091) internal successors, (131), 111 states have internal predecessors, (131), 68 states have call successors, (68), 22 states have call predecessors, (68), 23 states have return successors, (68), 68 states have call predecessors, (68), 67 states have call successors, (68) [2023-12-02 16:56:49,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 267 transitions. [2023-12-02 16:56:49,695 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 267 transitions. Word has length 131 [2023-12-02 16:56:49,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:56:49,696 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 267 transitions. [2023-12-02 16:56:49,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-02 16:56:49,697 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 267 transitions. [2023-12-02 16:56:49,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-02 16:56:49,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:56:49,701 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 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 16:56:49,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:56:49,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:56:49,902 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:56:49,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:56:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1927838927, now seen corresponding path program 1 times [2023-12-02 16:56:49,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:56:49,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78043010] [2023-12-02 16:56:49,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:56:49,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:56:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:56:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-12-02 16:56:52,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:56:52,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78043010] [2023-12-02 16:56:52,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78043010] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:56:52,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432478466] [2023-12-02 16:56:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:56:52,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:56:52,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:56:52,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:56:52,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:56:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:56:52,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 2589 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:56:52,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:56:52,968 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 16:56:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-02 16:56:53,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:56:53,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432478466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:56:53,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:56:53,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 14 [2023-12-02 16:56:53,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534051301] [2023-12-02 16:56:53,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:56:53,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 16:56:53,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:56:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 16:56:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-02 16:56:53,410 INFO L87 Difference]: Start difference. First operand 202 states and 267 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2023-12-02 16:56:56,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 16:56:58,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:00,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:03,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:05,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:07,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:09,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:11,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:13,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:15,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 16:57:17,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:19,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:21,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:23,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:25,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:27,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:30,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:30,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:57:30,188 INFO L93 Difference]: Finished difference Result 441 states and 571 transitions. [2023-12-02 16:57:30,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 16:57:30,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 139 [2023-12-02 16:57:30,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:57:30,193 INFO L225 Difference]: With dead ends: 441 [2023-12-02 16:57:30,193 INFO L226 Difference]: Without dead ends: 255 [2023-12-02 16:57:30,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:57:30,196 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 59 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 15 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:57:30,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1671 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 552 Invalid, 17 Unknown, 0 Unchecked, 36.6s Time] [2023-12-02 16:57:30,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-12-02 16:57:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 254. [2023-12-02 16:57:30,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 141 states have internal predecessors, (165), 79 states have call successors, (79), 33 states have call predecessors, (79), 34 states have return successors, (82), 79 states have call predecessors, (82), 78 states have call successors, (82) [2023-12-02 16:57:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 326 transitions. [2023-12-02 16:57:30,231 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 326 transitions. Word has length 139 [2023-12-02 16:57:30,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:57:30,231 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 326 transitions. [2023-12-02 16:57:30,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2023-12-02 16:57:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 326 transitions. [2023-12-02 16:57:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-02 16:57:30,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:57:30,235 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:57:30,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 16:57:30,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:57:30,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:57:30,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:57:30,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1833763220, now seen corresponding path program 1 times [2023-12-02 16:57:30,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:57:30,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234444076] [2023-12-02 16:57:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:57:30,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:57:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:57:30,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:57:30,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234444076] [2023-12-02 16:57:30,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 16:57:30,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634718179] [2023-12-02 16:57:30,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:57:30,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:57:30,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:57:30,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:57:30,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:57:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:57:31,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:57:31,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:57:31,374 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 16:57:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-02 16:57:31,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:57:31,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634718179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:57:31,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:57:31,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-02 16:57:31,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485407373] [2023-12-02 16:57:31,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:57:31,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 16:57:31,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:57:31,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 16:57:31,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-02 16:57:31,561 INFO L87 Difference]: Start difference. First operand 254 states and 326 transitions. Second operand has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 5 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2023-12-02 16:57:35,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 16:57:37,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:39,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:41,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:43,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:45,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:47,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:49,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:51,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:53,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 16:57:55,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:57,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:57:59,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:58:02,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:58:04,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:58:06,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:58:08,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:58:08,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:58:08,356 INFO L93 Difference]: Finished difference Result 446 states and 574 transitions. [2023-12-02 16:58:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-02 16:58:08,356 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 5 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) Word has length 150 [2023-12-02 16:58:08,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:58:08,359 INFO L225 Difference]: With dead ends: 446 [2023-12-02 16:58:08,359 INFO L226 Difference]: Without dead ends: 255 [2023-12-02 16:58:08,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-12-02 16:58:08,361 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 68 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 22 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:58:08,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1334 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 708 Invalid, 17 Unknown, 0 Unchecked, 36.6s Time] [2023-12-02 16:58:08,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-12-02 16:58:08,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 254. [2023-12-02 16:58:08,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 140 states have (on average 1.1714285714285715) internal successors, (164), 141 states have internal predecessors, (164), 79 states have call successors, (79), 33 states have call predecessors, (79), 34 states have return successors, (82), 79 states have call predecessors, (82), 78 states have call successors, (82) [2023-12-02 16:58:08,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 325 transitions. [2023-12-02 16:58:08,387 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 325 transitions. Word has length 150 [2023-12-02 16:58:08,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:58:08,388 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 325 transitions. [2023-12-02 16:58:08,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 5 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2023-12-02 16:58:08,388 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 325 transitions. [2023-12-02 16:58:08,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-02 16:58:08,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:58:08,391 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:08,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:58:08,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:08,592 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:58:08,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:58:08,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1766804946, now seen corresponding path program 1 times [2023-12-02 16:58:08,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:58:08,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015482287] [2023-12-02 16:58:08,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:08,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:58:08,711 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:58:08,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826592025] [2023-12-02 16:58:08,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:08,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:08,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:58:08,713 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:58:08,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:58:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:58:09,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 2748 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 16:58:09,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:58:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-12-02 16:58:09,368 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:58:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-12-02 16:58:09,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:58:09,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015482287] [2023-12-02 16:58:09,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:58:09,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826592025] [2023-12-02 16:58:09,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826592025] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:58:09,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:58:09,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-12-02 16:58:09,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772073164] [2023-12-02 16:58:09,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:58:09,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:58:09,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:58:09,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:58:09,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-02 16:58:09,547 INFO L87 Difference]: Start difference. First operand 254 states and 325 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-02 16:58:10,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:58:10,036 INFO L93 Difference]: Finished difference Result 260 states and 330 transitions. [2023-12-02 16:58:10,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:58:10,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 154 [2023-12-02 16:58:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:58:10,040 INFO L225 Difference]: With dead ends: 260 [2023-12-02 16:58:10,040 INFO L226 Difference]: Without dead ends: 258 [2023-12-02 16:58:10,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:58:10,041 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 6 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:58:10,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 892 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 16:58:10,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-12-02 16:58:10,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2023-12-02 16:58:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 143 states have (on average 1.167832167832168) internal successors, (167), 144 states have internal predecessors, (167), 79 states have call successors, (79), 34 states have call predecessors, (79), 35 states have return successors, (82), 79 states have call predecessors, (82), 78 states have call successors, (82) [2023-12-02 16:58:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 328 transitions. [2023-12-02 16:58:10,064 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 328 transitions. Word has length 154 [2023-12-02 16:58:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:58:10,065 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 328 transitions. [2023-12-02 16:58:10,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-02 16:58:10,065 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 328 transitions. [2023-12-02 16:58:10,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-02 16:58:10,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:58:10,068 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:10,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 16:58:10,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:10,277 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:58:10,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:58:10,277 INFO L85 PathProgramCache]: Analyzing trace with hash -297717794, now seen corresponding path program 1 times [2023-12-02 16:58:10,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:58:10,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828763371] [2023-12-02 16:58:10,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:10,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:58:10,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:58:10,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2107911702] [2023-12-02 16:58:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:10,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:10,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:58:10,386 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:58:10,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:58:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:58:10,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 2776 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 16:58:10,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:58:11,030 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-02 16:58:11,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:58:11,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:58:11,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828763371] [2023-12-02 16:58:11,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:58:11,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107911702] [2023-12-02 16:58:11,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107911702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:58:11,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:58:11,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 16:58:11,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335306579] [2023-12-02 16:58:11,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:58:11,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:58:11,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:58:11,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:58:11,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:58:11,035 INFO L87 Difference]: Start difference. First operand 258 states and 328 transitions. Second operand has 7 states, 3 states have (on average 23.0) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-02 16:58:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:58:11,618 INFO L93 Difference]: Finished difference Result 396 states and 513 transitions. [2023-12-02 16:58:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:58:11,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 3 states have (on average 23.0) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) Word has length 163 [2023-12-02 16:58:11,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:58:11,620 INFO L225 Difference]: With dead ends: 396 [2023-12-02 16:58:11,620 INFO L226 Difference]: Without dead ends: 261 [2023-12-02 16:58:11,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:58:11,622 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:58:11,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1202 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 16:58:11,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-12-02 16:58:11,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2023-12-02 16:58:11,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 144 states have (on average 1.1666666666666667) internal successors, (168), 146 states have internal predecessors, (168), 79 states have call successors, (79), 34 states have call predecessors, (79), 36 states have return successors, (85), 79 states have call predecessors, (85), 78 states have call successors, (85) [2023-12-02 16:58:11,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 332 transitions. [2023-12-02 16:58:11,660 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 332 transitions. Word has length 163 [2023-12-02 16:58:11,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:58:11,661 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 332 transitions. [2023-12-02 16:58:11,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 3 states have (on average 23.0) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 3 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-02 16:58:11,661 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 332 transitions. [2023-12-02 16:58:11,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-02 16:58:11,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:58:11,663 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:11,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 16:58:11,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:11,864 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:58:11,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:58:11,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1948219750, now seen corresponding path program 2 times [2023-12-02 16:58:11,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:58:11,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066898240] [2023-12-02 16:58:11,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:11,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:58:11,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:58:11,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520794183] [2023-12-02 16:58:11,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 16:58:11,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:11,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:58:11,976 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:58:11,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 16:58:12,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-02 16:58:12,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:58:12,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 16:58:12,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:58:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 16:58:12,490 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:58:12,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:58:12,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066898240] [2023-12-02 16:58:12,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:58:12,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520794183] [2023-12-02 16:58:12,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520794183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:58:12,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:58:12,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:58:12,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132019221] [2023-12-02 16:58:12,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:58:12,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:58:12,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:58:12,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:58:12,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:58:12,493 INFO L87 Difference]: Start difference. First operand 260 states and 332 transitions. Second operand has 5 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-02 16:58:13,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:58:13,082 INFO L93 Difference]: Finished difference Result 386 states and 500 transitions. [2023-12-02 16:58:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:58:13,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 169 [2023-12-02 16:58:13,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:58:13,086 INFO L225 Difference]: With dead ends: 386 [2023-12-02 16:58:13,086 INFO L226 Difference]: Without dead ends: 262 [2023-12-02 16:58:13,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:58:13,088 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:58:13,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 830 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 16:58:13,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-12-02 16:58:13,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2023-12-02 16:58:13,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 145 states have (on average 1.1655172413793105) internal successors, (169), 148 states have internal predecessors, (169), 79 states have call successors, (79), 34 states have call predecessors, (79), 37 states have return successors, (88), 79 states have call predecessors, (88), 78 states have call successors, (88) [2023-12-02 16:58:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 336 transitions. [2023-12-02 16:58:13,109 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 336 transitions. Word has length 169 [2023-12-02 16:58:13,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:58:13,109 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 336 transitions. [2023-12-02 16:58:13,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-12-02 16:58:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 336 transitions. [2023-12-02 16:58:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-02 16:58:13,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:58:13,113 INFO L195 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:13,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 16:58:13,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:13,314 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:58:13,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:58:13,314 INFO L85 PathProgramCache]: Analyzing trace with hash 84630876, now seen corresponding path program 3 times [2023-12-02 16:58:13,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:58:13,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079938995] [2023-12-02 16:58:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:13,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:58:13,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:58:13,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704168258] [2023-12-02 16:58:13,447 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 16:58:13,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:13,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:58:13,449 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:58:13,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 16:58:13,760 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 16:58:13,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 16:58:13,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 16:58:13,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:58:15,853 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2023-12-02 16:58:15,925 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-02 16:58:15,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:58:15,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:58:15,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079938995] [2023-12-02 16:58:15,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:58:15,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704168258] [2023-12-02 16:58:15,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704168258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:58:15,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:58:15,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 16:58:15,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091313067] [2023-12-02 16:58:15,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:58:15,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:58:15,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:58:15,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:58:15,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2023-12-02 16:58:15,928 INFO L87 Difference]: Start difference. First operand 262 states and 336 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (35), 2 states have call predecessors, (35), 3 states have call successors, (35) [2023-12-02 16:58:19,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 16:58:19,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:58:19,636 INFO L93 Difference]: Finished difference Result 409 states and 536 transitions. [2023-12-02 16:58:19,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 16:58:19,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (35), 2 states have call predecessors, (35), 3 states have call successors, (35) Word has length 173 [2023-12-02 16:58:19,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:58:19,639 INFO L225 Difference]: With dead ends: 409 [2023-12-02 16:58:19,639 INFO L226 Difference]: Without dead ends: 268 [2023-12-02 16:58:19,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=19, Invalid=40, Unknown=1, NotChecked=12, Total=72 [2023-12-02 16:58:19,640 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 7 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 274 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:58:19,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1047 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 268 Invalid, 1 Unknown, 274 Unchecked, 3.6s Time] [2023-12-02 16:58:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-12-02 16:58:19,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2023-12-02 16:58:19,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 149 states have (on average 1.1610738255033557) internal successors, (173), 152 states have internal predecessors, (173), 80 states have call successors, (80), 35 states have call predecessors, (80), 38 states have return successors, (88), 80 states have call predecessors, (88), 79 states have call successors, (88) [2023-12-02 16:58:19,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 341 transitions. [2023-12-02 16:58:19,659 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 341 transitions. Word has length 173 [2023-12-02 16:58:19,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:58:19,660 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 341 transitions. [2023-12-02 16:58:19,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (35), 2 states have call predecessors, (35), 3 states have call successors, (35) [2023-12-02 16:58:19,660 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 341 transitions. [2023-12-02 16:58:19,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-02 16:58:19,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:58:19,662 INFO L195 NwaCegarLoop]: trace histogram [14, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:19,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 16:58:19,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 16:58:19,863 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:58:19,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:58:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash -889754082, now seen corresponding path program 1 times [2023-12-02 16:58:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:58:19,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079306209] [2023-12-02 16:58:19,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:19,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:58:19,962 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:58:19,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656974792] [2023-12-02 16:58:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:19,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:19,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:58:19,963 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:58:19,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 16:58:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:58:20,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 2862 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 16:58:20,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:58:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-12-02 16:58:20,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:58:20,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:58:20,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079306209] [2023-12-02 16:58:20,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:58:20,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656974792] [2023-12-02 16:58:20,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656974792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:58:20,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:58:20,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 16:58:20,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907184340] [2023-12-02 16:58:20,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:58:20,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 16:58:20,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:58:20,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 16:58:20,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:58:20,582 INFO L87 Difference]: Start difference. First operand 268 states and 341 transitions. Second operand has 7 states, 4 states have (on average 17.0) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-02 16:58:21,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:58:21,080 INFO L93 Difference]: Finished difference Result 408 states and 524 transitions. [2023-12-02 16:58:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:58:21,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 17.0) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 177 [2023-12-02 16:58:21,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:58:21,083 INFO L225 Difference]: With dead ends: 408 [2023-12-02 16:58:21,083 INFO L226 Difference]: Without dead ends: 269 [2023-12-02 16:58:21,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 16:58:21,084 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 10 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:58:21,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1210 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 16:58:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-12-02 16:58:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 268. [2023-12-02 16:58:21,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 149 states have (on average 1.1610738255033557) internal successors, (173), 152 states have internal predecessors, (173), 80 states have call successors, (80), 35 states have call predecessors, (80), 38 states have return successors, (87), 80 states have call predecessors, (87), 79 states have call successors, (87) [2023-12-02 16:58:21,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 340 transitions. [2023-12-02 16:58:21,104 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 340 transitions. Word has length 177 [2023-12-02 16:58:21,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:58:21,105 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 340 transitions. [2023-12-02 16:58:21,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 17.0) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-02 16:58:21,106 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 340 transitions. [2023-12-02 16:58:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-02 16:58:21,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:58:21,107 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:21,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 16:58:21,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 16:58:21,313 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:58:21,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:58:21,313 INFO L85 PathProgramCache]: Analyzing trace with hash -306802468, now seen corresponding path program 1 times [2023-12-02 16:58:21,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:58:21,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105540022] [2023-12-02 16:58:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:21,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:58:21,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:58:21,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229342884] [2023-12-02 16:58:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:21,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:21,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:58:21,411 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:58:21,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 16:58:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:58:22,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 2917 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 16:58:22,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:58:22,067 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-12-02 16:58:22,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:58:22,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:58:22,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105540022] [2023-12-02 16:58:22,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:58:22,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229342884] [2023-12-02 16:58:22,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229342884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:58:22,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:58:22,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:58:22,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76501652] [2023-12-02 16:58:22,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:58:22,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:58:22,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:58:22,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:58:22,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:58:22,070 INFO L87 Difference]: Start difference. First operand 268 states and 340 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-12-02 16:58:22,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:58:22,530 INFO L93 Difference]: Finished difference Result 496 states and 627 transitions. [2023-12-02 16:58:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 16:58:22,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 187 [2023-12-02 16:58:22,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:58:22,533 INFO L225 Difference]: With dead ends: 496 [2023-12-02 16:58:22,533 INFO L226 Difference]: Without dead ends: 270 [2023-12-02 16:58:22,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:58:22,535 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 0 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:58:22,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 819 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 16:58:22,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-12-02 16:58:22,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2023-12-02 16:58:22,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 150 states have (on average 1.1533333333333333) internal successors, (173), 154 states have internal predecessors, (173), 80 states have call successors, (80), 35 states have call predecessors, (80), 39 states have return successors, (88), 80 states have call predecessors, (88), 79 states have call successors, (88) [2023-12-02 16:58:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 341 transitions. [2023-12-02 16:58:22,549 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 341 transitions. Word has length 187 [2023-12-02 16:58:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:58:22,549 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 341 transitions. [2023-12-02 16:58:22,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-12-02 16:58:22,549 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 341 transitions. [2023-12-02 16:58:22,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-02 16:58:22,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:58:22,551 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:22,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-02 16:58:22,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 16:58:22,752 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:58:22,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:58:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash 161882489, now seen corresponding path program 1 times [2023-12-02 16:58:22,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:58:22,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390147469] [2023-12-02 16:58:22,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:22,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:58:22,841 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:58:22,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068712974] [2023-12-02 16:58:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:22,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:22,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:58:22,843 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:58:22,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 16:58:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:58:24,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 3021 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 16:58:24,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:58:24,060 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-02 16:58:24,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:58:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-12-02 16:58:24,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:58:24,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390147469] [2023-12-02 16:58:24,252 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 16:58:24,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068712974] [2023-12-02 16:58:24,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068712974] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:58:24,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 16:58:24,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-12-02 16:58:24,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928735620] [2023-12-02 16:58:24,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:58:24,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:58:24,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:58:24,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:58:24,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-02 16:58:24,255 INFO L87 Difference]: Start difference. First operand 270 states and 341 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-02 16:58:24,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:58:24,687 INFO L93 Difference]: Finished difference Result 278 states and 348 transitions. [2023-12-02 16:58:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:58:24,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 192 [2023-12-02 16:58:24,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:58:24,690 INFO L225 Difference]: With dead ends: 278 [2023-12-02 16:58:24,691 INFO L226 Difference]: Without dead ends: 276 [2023-12-02 16:58:24,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-02 16:58:24,692 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 6 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:58:24,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 903 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 16:58:24,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2023-12-02 16:58:24,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 274. [2023-12-02 16:58:24,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 153 states have (on average 1.1503267973856208) internal successors, (176), 157 states have internal predecessors, (176), 80 states have call successors, (80), 36 states have call predecessors, (80), 40 states have return successors, (88), 80 states have call predecessors, (88), 79 states have call successors, (88) [2023-12-02 16:58:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 344 transitions. [2023-12-02 16:58:24,713 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 344 transitions. Word has length 192 [2023-12-02 16:58:24,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:58:24,714 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 344 transitions. [2023-12-02 16:58:24,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2023-12-02 16:58:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 344 transitions. [2023-12-02 16:58:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-02 16:58:24,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:58:24,717 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:24,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 16:58:24,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 16:58:24,917 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:58:24,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:58:24,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1481532374, now seen corresponding path program 1 times [2023-12-02 16:58:24,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:58:24,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835902157] [2023-12-02 16:58:24,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:24,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:58:25,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:58:25,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939016716] [2023-12-02 16:58:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:58:25,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:58:25,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:58:25,026 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:58:25,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 16:58:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:58:26,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 3119 conjuncts, 269 conjunts are in the unsatisfiable core [2023-12-02 16:58:26,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:58:26,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-12-02 16:58:26,542 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-02 16:58:26,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-12-02 16:58:26,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 16:58:28,776 INFO L349 Elim1Store]: treesize reduction 901, result has 27.0 percent of original size [2023-12-02 16:58:28,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 9 select indices, 9 select index equivalence classes, 2 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 63 case distinctions, treesize of input 201 treesize of output 589 [2023-12-02 17:07:04,787 INFO L224 Elim1Store]: Index analysis took 106 ms [2023-12-02 17:07:04,918 INFO L349 Elim1Store]: treesize reduction 185, result has 0.5 percent of original size [2023-12-02 17:07:04,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 1 [2023-12-02 17:07:04,996 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:07:05,063 INFO L349 Elim1Store]: treesize reduction 156, result has 0.6 percent of original size [2023-12-02 17:07:05,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 1 [2023-12-02 17:07:06,335 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:07:12,849 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:07:13,065 INFO L349 Elim1Store]: treesize reduction 164, result has 0.6 percent of original size [2023-12-02 17:07:13,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 46 treesize of output 1 [2023-12-02 17:07:19,116 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:07:21,155 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:08:58,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2023-12-02 17:08:58,624 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-12-02 17:08:58,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:08:58,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835902157] [2023-12-02 17:08:58,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-02 17:08:58,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939016716] [2023-12-02 17:08:58,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2023-12-02 17:08:58,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [481308895] [2023-12-02 17:08:58,648 INFO L159 IcfgInterpreter]: Started Sifa with 106 locations of interest [2023-12-02 17:08:58,648 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:08:58,652 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:08:58,657 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:08:58,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:08:58,737 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkSatTerm(SmtUtils.java:332) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.isFalse(SymbolicTools.java:223) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.RelationCheckUtil.isEqBottom_SolverAlphaSolver(RelationCheckUtil.java:56) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.ExplicitValueDomain.isEqBottom(ExplicitValueDomain.java:73) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.CompoundDomain.isEqBottom(CompoundDomain.java:84) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.StatsWrapperDomain.isEqBottom(StatsWrapperDomain.java:69) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.earlyExitAfterStep(DagInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 44 more [2023-12-02 17:08:58,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:08:58,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2023-12-02 17:08:58,739 ERROR L171 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2023-12-02 17:08:58,739 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-12-02 17:08:58,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 17:08:58,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 17:08:58,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:08:58,955 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:08:58,959 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:08:58,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:08:58 BoogieIcfgContainer [2023-12-02 17:08:58,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:08:58,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:08:58,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:08:58,999 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:08:59,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:56:47" (3/4) ... [2023-12-02 17:08:59,001 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 17:08:59,002 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:08:59,002 INFO L158 Benchmark]: Toolchain (without parser) took 736172.05ms. Allocated memory was 167.8MB in the beginning and 960.5MB in the end (delta: 792.7MB). Free memory was 123.0MB in the beginning and 546.3MB in the end (delta: -423.3MB). Peak memory consumption was 369.1MB. Max. memory is 16.1GB. [2023-12-02 17:08:59,002 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 107.0MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:08:59,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3069.03ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 123.0MB in the beginning and 144.0MB in the end (delta: -21.0MB). Peak memory consumption was 122.4MB. Max. memory is 16.1GB. [2023-12-02 17:08:59,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 186.35ms. Allocated memory is still 211.8MB. Free memory was 144.0MB in the beginning and 131.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 17:08:59,003 INFO L158 Benchmark]: Boogie Preprocessor took 92.35ms. Allocated memory is still 211.8MB. Free memory was 131.5MB in the beginning and 124.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 17:08:59,003 INFO L158 Benchmark]: RCFGBuilder took 1535.94ms. Allocated memory is still 211.8MB. Free memory was 123.1MB in the beginning and 104.0MB in the end (delta: 19.0MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2023-12-02 17:08:59,003 INFO L158 Benchmark]: TraceAbstraction took 731278.43ms. Allocated memory was 211.8MB in the beginning and 960.5MB in the end (delta: 748.7MB). Free memory was 104.0MB in the beginning and 546.3MB in the end (delta: -442.3MB). Peak memory consumption was 306.4MB. Max. memory is 16.1GB. [2023-12-02 17:08:59,003 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 960.5MB. Free memory is still 546.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:08:59,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 107.0MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3069.03ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 123.0MB in the beginning and 144.0MB in the end (delta: -21.0MB). Peak memory consumption was 122.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 186.35ms. Allocated memory is still 211.8MB. Free memory was 144.0MB in the beginning and 131.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.35ms. Allocated memory is still 211.8MB. Free memory was 131.5MB in the beginning and 124.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1535.94ms. Allocated memory is still 211.8MB. Free memory was 123.1MB in the beginning and 104.0MB in the end (delta: 19.0MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. * TraceAbstraction took 731278.43ms. Allocated memory was 211.8MB in the beginning and 960.5MB in the end (delta: 748.7MB). Free memory was 104.0MB in the beginning and 546.3MB in the end (delta: -442.3MB). Peak memory consumption was 306.4MB. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 960.5MB. Free memory is still 546.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7558]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] * 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: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7575, overapproximation of __builtin_uaddl_overflow at line 250, overapproximation of bitwiseAnd at line 9309, overapproximation of __builtin_umull_overflow at line 255, overapproximation of someBinaryDOUBLEComparisonOperation at line 10039. Possible FailurePath: [L6927-L6932] 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, }; [L7379] static __thread int tl_last_error = 0; [L7574-L7722] 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", } , }; [L7725-L7728] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7730-L7739] 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.") } , }; [L7741-L7744] 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])), }; [L7746-L7750] static _Bool s_common_library_initialized = 0 ; [L10143] CALL aws_hash_table_find_harness() [L10115] struct aws_hash_table map; [L10116] CALL ensure_allocated_hash_table(&map, 8) [L6810] CALL, EXPR nondet_uint64_t() [L266] return __VERIFIER_nondet_ulong(); [L6810] RET, EXPR nondet_uint64_t() [L6810] size_t num_entries = nondet_uint64_t(); [L6811] CALL assume_abort_if_not(num_entries <= max_table_entries) [L211] COND FALSE !(!cond) [L6811] RET assume_abort_if_not(num_entries <= max_table_entries) [L6812] CALL, EXPR aws_is_power_of_two(num_entries) [L2630] EXPR x && (!(x & (x - 1))) [L2630] return x && (!(x & (x - 1))); [L6812] RET, EXPR aws_is_power_of_two(num_entries) [L6812] CALL assume_abort_if_not(aws_is_power_of_two(num_entries)) [L211] COND FALSE !(!cond) [L6812] RET assume_abort_if_not(aws_is_power_of_two(num_entries)) [L6814] size_t required_bytes; [L6815] CALL, EXPR hash_table_state_required_bytes(num_entries, &required_bytes) [L10103] size_t elemsize; [L10104] CALL aws_mul_size_checked(size, sizeof(struct hash_table_entry), &elemsize) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L10104] RET aws_mul_size_checked(size, sizeof(struct hash_table_entry), &elemsize) [L10104] COND FALSE !(aws_mul_size_checked(size, sizeof(struct hash_table_entry), &elemsize)) [L10108] EXPR \read(elemsize) [L10108] CALL aws_add_size_checked(elemsize, sizeof(struct hash_table_state), required_bytes) [L2617] CALL, EXPR aws_add_u64_checked(a, b, (uint64_t *)r) [L2542] CALL __CPROVER_overflow_plus(a, b) [L249] unsigned long c; [L250] return __builtin_uaddl_overflow(a, b, &c); [L250] return __builtin_uaddl_overflow(a, b, &c); [L2542] RET __CPROVER_overflow_plus(a, b) [L2542] COND FALSE !(__CPROVER_overflow_plus(a, b)) [L2544] *r = a + b [L2545] return (0); [L2617] RET, EXPR aws_add_u64_checked(a, b, (uint64_t *)r) [L2617] return aws_add_u64_checked(a, b, (uint64_t *)r); [L10108] RET aws_add_size_checked(elemsize, sizeof(struct hash_table_state), required_bytes) [L10108] COND FALSE !(aws_add_size_checked(elemsize, sizeof(struct hash_table_state), required_bytes)) [L10112] return (0); [L10112] return (0); [L6815] RET, EXPR hash_table_state_required_bytes(num_entries, &required_bytes) [L6815] CALL assume_abort_if_not(!hash_table_state_required_bytes(num_entries, &required_bytes)) [L211] COND FALSE !(!cond) [L6815] RET assume_abort_if_not(!hash_table_state_required_bytes(num_entries, &required_bytes)) [L6816] EXPR \read(required_bytes) [L6816] CALL, EXPR bounded_malloc(required_bytes) [L6944-L6946] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) [L211] COND FALSE !(!cond) [L6944-L6946] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) [L6947] return malloc(size); [L6816] RET, EXPR bounded_malloc(required_bytes) [L6816] struct hash_table_state *impl = bounded_malloc(required_bytes); [L6817] impl->size = num_entries [L6818] map->p_impl = impl [L10116] RET ensure_allocated_hash_table(&map, 8) [L10117] CALL, EXPR aws_hash_table_is_valid(&map) [L9990] EXPR map && map->p_impl [L9990] EXPR map && map->p_impl && hash_table_state_is_valid(map->p_impl) [L9990] EXPR map->p_impl [L9990] CALL, EXPR hash_table_state_is_valid(map->p_impl) [L10001] COND FALSE !(!map) [L10008] EXPR map->hash_fn [L10007-L10010] _Bool hash_fn_nonnull = (map->hash_fn != ((void *)0) ); [L10013] EXPR map->equals_fn [L10012-L10015] _Bool equals_fn_nonnull = (map->equals_fn != ((void *)0) ); [L10019] EXPR map->alloc [L10018-L10021] _Bool alloc_nonnull = (map->alloc != ((void *)0) ); [L10024] EXPR map->size [L10023-L10024] _Bool size_at_least_two = (map->size >= 2); [L10027] EXPR map->size [L10027] CALL, EXPR aws_is_power_of_two(map->size) [L2630] EXPR x && (!(x & (x - 1))) [L2630] return x && (!(x & (x - 1))); [L10027] RET, EXPR aws_is_power_of_two(map->size) [L10026-L10027] _Bool size_is_power_of_two = aws_is_power_of_two(map->size); [L10030] EXPR map->entry_count [L10030] EXPR map->max_load [L10029-L10030] _Bool entry_count = (map->entry_count <= map->max_load); [L10033] EXPR map->max_load [L10033] EXPR map->size [L10032-L10033] _Bool max_load = (map->max_load < map->size); [L10036] EXPR map->mask [L10036] EXPR map->size [L10035-L10036] _Bool mask_is_correct = (map->mask == (map->size - 1)); [L10039] EXPR map->max_load_factor [L10038-L10039] _Bool max_load_factor_bounded = map->max_load_factor == 0.95; [L10042] EXPR map->size [L10041-L10042] _Bool slots_allocated = ((((sizeof(map->slots[0]) * map->size)) == 0) || ((&map->slots[0]))); [L10044-L10045] return hash_fn_nonnull && equals_fn_nonnull && alloc_nonnull && size_at_least_two && size_is_power_of_two && entry_count && max_load && mask_is_correct && max_load_factor_bounded && slots_allocated; [L9990] RET, EXPR hash_table_state_is_valid(map->p_impl) [L9990] EXPR map && map->p_impl && hash_table_state_is_valid(map->p_impl) [L9990] return map && map->p_impl && hash_table_state_is_valid(map->p_impl); [L10117] RET, EXPR aws_hash_table_is_valid(&map) [L10117] CALL assume_abort_if_not(aws_hash_table_is_valid(&map)) [L211] COND FALSE !(!cond) [L10117] RET assume_abort_if_not(aws_hash_table_is_valid(&map)) [L10118] EXPR map.p_impl [L10118] map.p_impl->equals_fn = uninterpreted_equals_assert_inputs_nonnull [L10119] EXPR map.p_impl [L10119] map.p_impl->hash_fn = uninterpreted_hasher [L10121] size_t empty_slot_idx; [L10122] CALL, EXPR aws_hash_table_has_an_empty_slot(&map, &empty_slot_idx) [L6833] EXPR map->p_impl [L6833] CALL, EXPR hash_table_state_has_an_empty_slot(map->p_impl, rval) [L6839] EXPR state->entry_count [L6839] CALL assume_abort_if_not(state->entry_count > 0) [L211] COND FALSE !(!cond) [L6839] RET assume_abort_if_not(state->entry_count > 0) [L6840] CALL, EXPR nondet_uint64_t() [L266] return __VERIFIER_nondet_ulong(); [L6840] RET, EXPR nondet_uint64_t() [L6840] size_t empty_slot_idx = nondet_uint64_t(); [L6841] EXPR state->size [L6841] CALL assume_abort_if_not(empty_slot_idx < state->size) [L211] COND FALSE !(!cond) [L6841] RET assume_abort_if_not(empty_slot_idx < state->size) [L6842] *rval = empty_slot_idx [L6843] EXPR state->slots[empty_slot_idx].hash_code [L6843] return state->slots[empty_slot_idx].hash_code == 0; [L6833] RET, EXPR hash_table_state_has_an_empty_slot(map->p_impl, rval) [L6833] return hash_table_state_has_an_empty_slot(map->p_impl, rval); [L10122] RET, EXPR aws_hash_table_has_an_empty_slot(&map, &empty_slot_idx) [L10122] CALL assume_abort_if_not(aws_hash_table_has_an_empty_slot(&map, &empty_slot_idx)) [L211] COND FALSE !(!cond) [L10122] RET assume_abort_if_not(aws_hash_table_has_an_empty_slot(&map, &empty_slot_idx)) [L10124] struct store_byte_from_buffer old_byte; [L10125] CALL save_byte_from_hash_table(&map, &old_byte) [L7268] EXPR map->p_impl [L7268] struct hash_table_state *state = map->p_impl; [L7269] size_t size_in_bytes; [L7270] EXPR state->size [L7270] CALL, EXPR hash_table_state_required_bytes(state->size, &size_in_bytes) [L10103] size_t elemsize; [L10104] CALL aws_mul_size_checked(size, sizeof(struct hash_table_entry), &elemsize) [L2590] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2498] CALL __CPROVER_overflow_mult(a, b) [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] RET __CPROVER_overflow_mult(a, b) [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L10104] RET aws_mul_size_checked(size, sizeof(struct hash_table_entry), &elemsize) [L10104] COND FALSE !(aws_mul_size_checked(size, sizeof(struct hash_table_entry), &elemsize)) [L10108] EXPR \read(elemsize) [L10108] CALL aws_add_size_checked(elemsize, sizeof(struct hash_table_state), required_bytes) [L2617] CALL, EXPR aws_add_u64_checked(a, b, (uint64_t *)r) [L2542] CALL __CPROVER_overflow_plus(a, b) [L249] unsigned long c; [L250] return __builtin_uaddl_overflow(a, b, &c); [L250] return __builtin_uaddl_overflow(a, b, &c); [L2542] RET __CPROVER_overflow_plus(a, b) [L2542] COND FALSE !(__CPROVER_overflow_plus(a, b)) [L2544] *r = a + b [L2545] return (0); [L2617] RET, EXPR aws_add_u64_checked(a, b, (uint64_t *)r) [L2617] return aws_add_u64_checked(a, b, (uint64_t *)r); [L10108] RET aws_add_size_checked(elemsize, sizeof(struct hash_table_state), required_bytes) [L10108] COND FALSE !(aws_add_size_checked(elemsize, sizeof(struct hash_table_state), required_bytes)) [L10112] return (0); [L10112] return (0); [L7270] RET, EXPR hash_table_state_required_bytes(state->size, &size_in_bytes) [L7270] CALL assume_abort_if_not(hash_table_state_required_bytes(state->size, &size_in_bytes) == (0)) [L211] COND FALSE !(!cond) [L7270] RET assume_abort_if_not(hash_table_state_required_bytes(state->size, &size_in_bytes) == (0)) [L7271] EXPR \read(size_in_bytes) [L7271] CALL save_byte_from_array((uint8_t *)state, size_in_bytes, storage) [L7196] COND FALSE !(size > 0 && array && storage) [L7271] RET save_byte_from_array((uint8_t *)state, size_in_bytes, storage) [L10125] RET save_byte_from_hash_table(&map, &old_byte) [L10127] void *key; [L10128] struct aws_hash_element *p_elem; [L10131] CALL, EXPR aws_hash_table_is_valid(&map) [L9990] EXPR map && map->p_impl [L9990] EXPR map && map->p_impl && hash_table_state_is_valid(map->p_impl) [L9990] EXPR map->p_impl [L9990] CALL, EXPR hash_table_state_is_valid(map->p_impl) [L10001] COND FALSE !(!map) [L10008] EXPR map->hash_fn [L10007-L10010] _Bool hash_fn_nonnull = (map->hash_fn != ((void *)0) ); [L10013] EXPR map->equals_fn [L10012-L10015] _Bool equals_fn_nonnull = (map->equals_fn != ((void *)0) ); [L10019] EXPR map->alloc [L10018-L10021] _Bool alloc_nonnull = (map->alloc != ((void *)0) ); [L10024] EXPR map->size [L10023-L10024] _Bool size_at_least_two = (map->size >= 2); [L10027] EXPR map->size [L10027] CALL, EXPR aws_is_power_of_two(map->size) [L2630] EXPR x && (!(x & (x - 1))) [L2630] return x && (!(x & (x - 1))); [L10027] RET, EXPR aws_is_power_of_two(map->size) [L10026-L10027] _Bool size_is_power_of_two = aws_is_power_of_two(map->size); [L10030] EXPR map->entry_count [L10030] EXPR map->max_load [L10029-L10030] _Bool entry_count = (map->entry_count <= map->max_load); [L10033] EXPR map->max_load [L10033] EXPR map->size [L10032-L10033] _Bool max_load = (map->max_load < map->size); [L10036] EXPR map->mask [L10036] EXPR map->size [L10035-L10036] _Bool mask_is_correct = (map->mask == (map->size - 1)); [L10039] EXPR map->max_load_factor [L10038-L10039] _Bool max_load_factor_bounded = map->max_load_factor == 0.95; [L10042] EXPR map->size [L10041-L10042] _Bool slots_allocated = ((((sizeof(map->slots[0]) * map->size)) == 0) || ((&map->slots[0]))); [L10044-L10045] return hash_fn_nonnull && equals_fn_nonnull && alloc_nonnull && size_at_least_two && size_is_power_of_two && entry_count && max_load && mask_is_correct && max_load_factor_bounded && slots_allocated; [L9990] RET, EXPR hash_table_state_is_valid(map->p_impl) [L9990] EXPR map && map->p_impl && hash_table_state_is_valid(map->p_impl) [L9990] return map && map->p_impl && hash_table_state_is_valid(map->p_impl); [L10131] RET, EXPR aws_hash_table_is_valid(&map) [L10131] CALL assume_abort_if_not(aws_hash_table_is_valid(&map)) [L211] COND FALSE !(!cond) [L10131] RET assume_abort_if_not(aws_hash_table_is_valid(&map)) [L10132] CALL assume_abort_if_not(((((sizeof(*(&p_elem)))) == 0) || (((&p_elem))))) [L211] COND FALSE !(!cond) [L10132] RET assume_abort_if_not(((((sizeof(*(&p_elem)))) == 0) || (((&p_elem))))) [L10134] CALL aws_hash_table_find(&map, key, &p_elem) [L9392] CALL, EXPR aws_hash_table_is_valid(map) [L9990] EXPR map && map->p_impl [L9990] EXPR map && map->p_impl && hash_table_state_is_valid(map->p_impl) [L9990] EXPR map->p_impl [L9990] CALL, EXPR hash_table_state_is_valid(map->p_impl) [L10001] COND FALSE !(!map) [L10008] EXPR map->hash_fn [L10007-L10010] _Bool hash_fn_nonnull = (map->hash_fn != ((void *)0) ); [L10013] EXPR map->equals_fn [L10012-L10015] _Bool equals_fn_nonnull = (map->equals_fn != ((void *)0) ); [L10019] EXPR map->alloc [L10018-L10021] _Bool alloc_nonnull = (map->alloc != ((void *)0) ); [L10024] EXPR map->size [L10023-L10024] _Bool size_at_least_two = (map->size >= 2); [L10027] EXPR map->size [L10027] CALL, EXPR aws_is_power_of_two(map->size) [L2630] EXPR x && (!(x & (x - 1))) [L2630] return x && (!(x & (x - 1))); [L10027] RET, EXPR aws_is_power_of_two(map->size) [L10026-L10027] _Bool size_is_power_of_two = aws_is_power_of_two(map->size); [L10030] EXPR map->entry_count [L10030] EXPR map->max_load [L10029-L10030] _Bool entry_count = (map->entry_count <= map->max_load); [L10033] EXPR map->max_load [L10033] EXPR map->size [L10032-L10033] _Bool max_load = (map->max_load < map->size); [L10036] EXPR map->mask [L10036] EXPR map->size [L10035-L10036] _Bool mask_is_correct = (map->mask == (map->size - 1)); [L10039] EXPR map->max_load_factor [L10038-L10039] _Bool max_load_factor_bounded = map->max_load_factor == 0.95; [L10042] EXPR map->size [L10041-L10042] _Bool slots_allocated = ((((sizeof(map->slots[0]) * map->size)) == 0) || ((&map->slots[0]))); [L10044-L10045] return hash_fn_nonnull && equals_fn_nonnull && alloc_nonnull && size_at_least_two && size_is_power_of_two && entry_count && max_load && mask_is_correct && max_load_factor_bounded && slots_allocated; [L9990] RET, EXPR hash_table_state_is_valid(map->p_impl) [L9990] EXPR map && map->p_impl && hash_table_state_is_valid(map->p_impl) [L9990] return map && map->p_impl && hash_table_state_is_valid(map->p_impl); [L9392] RET, EXPR aws_hash_table_is_valid(map) [L9392] CALL assume_abort_if_not((aws_hash_table_is_valid(map))) [L211] COND FALSE !(!cond) [L9392] RET assume_abort_if_not((aws_hash_table_is_valid(map))) [L9393] CALL assume_abort_if_not((((((sizeof(*(p_elem)))) == 0) || (((p_elem)))))) [L211] COND FALSE !(!cond) [L9393] RET assume_abort_if_not((((((sizeof(*(p_elem)))) == 0) || (((p_elem)))))) [L9395] EXPR map->p_impl [L9395] struct hash_table_state *state = map->p_impl; [L9396] CALL, EXPR s_hash_for(state, key) [L9083] CALL, EXPR hash_table_state_is_valid(state) [L10001] COND FALSE !(!map) [L10008] EXPR map->hash_fn [L10007-L10010] _Bool hash_fn_nonnull = (map->hash_fn != ((void *)0) ); [L10013] EXPR map->equals_fn [L10012-L10015] _Bool equals_fn_nonnull = (map->equals_fn != ((void *)0) ); [L10019] EXPR map->alloc [L10018-L10021] _Bool alloc_nonnull = (map->alloc != ((void *)0) ); [L10024] EXPR map->size [L10023-L10024] _Bool size_at_least_two = (map->size >= 2); [L10027] EXPR map->size [L10027] CALL, EXPR aws_is_power_of_two(map->size) [L2630] EXPR x && (!(x & (x - 1))) [L2630] return x && (!(x & (x - 1))); [L10027] RET, EXPR aws_is_power_of_two(map->size) [L10026-L10027] _Bool size_is_power_of_two = aws_is_power_of_two(map->size); [L10030] EXPR map->entry_count [L10030] EXPR map->max_load [L10029-L10030] _Bool entry_count = (map->entry_count <= map->max_load); [L10033] EXPR map->max_load [L10033] EXPR map->size [L10032-L10033] _Bool max_load = (map->max_load < map->size); [L10036] EXPR map->mask [L10036] EXPR map->size [L10035-L10036] _Bool mask_is_correct = (map->mask == (map->size - 1)); [L10039] EXPR map->max_load_factor [L10038-L10039] _Bool max_load_factor_bounded = map->max_load_factor == 0.95; [L10042] EXPR map->size [L10041-L10042] _Bool slots_allocated = ((((sizeof(map->slots[0]) * map->size)) == 0) || ((&map->slots[0]))); [L10044-L10045] return hash_fn_nonnull && equals_fn_nonnull && alloc_nonnull && size_at_least_two && size_is_power_of_two && entry_count && max_load && mask_is_correct && max_load_factor_bounded && slots_allocated; [L9083] RET, EXPR hash_table_state_is_valid(state) [L9083] CALL assume_abort_if_not((hash_table_state_is_valid(state))) [L211] COND FALSE !(!cond) [L9083] RET assume_abort_if_not((hash_table_state_is_valid(state))) [L9084] FCALL s_suppress_unused_lookup3_func_warnings() [L9086-L9087] COND TRUE key == ((void *)0) [L9090] return 42; [L9396] RET, EXPR s_hash_for(state, key) [L9396] uint64_t hash_code = s_hash_for(state, key); [L9397] struct hash_table_entry *entry; [L9399-L9401] CALL, EXPR s_find_entry(state, hash_code, key, &entry, ((void *)0) ) [L9309] EXPR state->mask [L9309] EXPR hash_code & state->mask [L9309] struct hash_table_entry *entry = &state->slots[hash_code & state->mask]; [L9311] EXPR entry->hash_code [L9311] COND TRUE entry->hash_code == 0 [L9312] COND FALSE !(\read(*p_probe_idx)) [L9315] *p_entry = entry [L9316] return AWS_ERROR_HASHTBL_ITEM_NOT_FOUND; [L9399-L9401] RET, EXPR s_find_entry(state, hash_code, key, &entry, ((void *)0) ) [L9399-L9401] int rv = s_find_entry(state, hash_code, key, &entry, ((void *)0) ); [L9403] COND FALSE !(rv == AWS_ERROR_SUCCESS) [L9406-L9407] *p_elem = ((void *)0) [L9410] CALL, EXPR aws_hash_table_is_valid(map) [L9990] EXPR map && map->p_impl [L9990] EXPR map && map->p_impl && hash_table_state_is_valid(map->p_impl) [L9990] return map && map->p_impl && hash_table_state_is_valid(map->p_impl); [L9410] RET, EXPR aws_hash_table_is_valid(map) [L9410] CALL __VERIFIER_assert((aws_hash_table_is_valid(map))) [L223] COND TRUE !cond [L223] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 200 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 731.2s, OverallIterations: 11, TraceHistogramMax: 14, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 81.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35 mSolverCounterUnknown, 204 SdHoareTripleChecker+Valid, 80.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 10820 SdHoareTripleChecker+Invalid, 79.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 274 IncrementalHoareTripleChecker+Unchecked, 8605 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3157 IncrementalHoareTripleChecker+Invalid, 3510 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 2215 mSDtfsCounter, 3157 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1994 GetRequests, 1918 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=10, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 6 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 5.1s SatisfiabilityAnalysisTime, 638.5s InterpolantComputationTime, 2121 NumberOfCodeBlocks, 1940 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2107 ConstructedInterpolants, 19 QuantifiedInterpolants, 3179 SizeOfPredicates, 49 NumberOfNonLiveVariables, 27841 ConjunctsInSsa, 513 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 3023/3035 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 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/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 b2aa49e297f60cfce052f243c4868c3f21a4b7a15679d0734b9f9fae5c35ea17 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:09:00,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:09:00,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 17:09:00,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:09:00,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:09:00,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:09:00,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:09:00,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:09:00,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:09:00,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:09:00,849 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:09:00,850 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:09:00,850 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:09:00,851 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:09:00,851 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:09:00,852 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:09:00,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:09:00,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:09:00,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:09:00,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:09:00,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:09:00,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:09:00,856 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:09:00,857 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 17:09:00,857 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 17:09:00,858 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:09:00,858 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:09:00,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:09:00,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 17:09:00,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:09:00,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:09:00,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:09:00,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:09:00,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:09:00,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:09:00,861 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 17:09:00,862 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 17:09:00,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:09:00,862 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:09:00,862 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:09:00,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:09:00,863 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2aa49e297f60cfce052f243c4868c3f21a4b7a15679d0734b9f9fae5c35ea17 [2023-12-02 17:09:01,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:09:01,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:09:01,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:09:01,165 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:09:01,166 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:09:01,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2023-12-02 17:09:04,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:09:04,446 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:09:04,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i [2023-12-02 17:09:04,480 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/data/5fe5a3216/4c8f56db7c434fa8954a9d6f587b2e13/FLAGc26427ae0 [2023-12-02 17:09:04,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/bin/utaipan-verify-nQ1chXbOIh/data/5fe5a3216/4c8f56db7c434fa8954a9d6f587b2e13 [2023-12-02 17:09:04,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:09:04,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:09:04,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:09:04,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:09:04,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:09:04,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:09:04" (1/1) ... [2023-12-02 17:09:04,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2195f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:09:04, skipping insertion in model container [2023-12-02 17:09:04,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:09:04" (1/1) ... [2023-12-02 17:09:04,631 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:09:04,905 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2023-12-02 17:09:04,912 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2023-12-02 17:09:05,720 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,721 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,722 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,723 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,724 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,739 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,740 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,742 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,743 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,745 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,746 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,747 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:05,747 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,181 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 17:09:06,183 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 17:09:06,184 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 17:09:06,185 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 17:09:06,187 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 17:09:06,188 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 17:09:06,188 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 17:09:06,189 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 17:09:06,190 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 17:09:06,191 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 17:09:06,714 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,714 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,734 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,736 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,741 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,742 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,754 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,755 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,756 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,756 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,757 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,757 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,758 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:09:06,828 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 17:09:06,862 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:09:06,866 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2023-12-02 17:09:06,866 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2023-12-02 17:09:06,926 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,926 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,927 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,927 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,928 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,933 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,934 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,935 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,935 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,936 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,937 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,937 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,938 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:06,968 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 17:09:06,969 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 17:09:06,970 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 17:09:06,971 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 17:09:06,971 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 17:09:06,972 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 17:09:06,972 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 17:09:06,973 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 17:09:06,973 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 17:09:06,973 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 17:09:07,084 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,084 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,091 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,092 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,094 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,094 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,124 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,126 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,126 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,127 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,127 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,127 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,128 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:09:07,169 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:09:07,183 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4493,4506] [2023-12-02 17:09:07,184 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_2af86f9c-5a9d-4871-b03b-9bffca5a2afb/sv-benchmarks/c/aws-c-common/aws_hash_table_find_harness.i[4553,4566] [2023-12-02 17:09:07,218 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,218 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,219 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,219 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,220 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,225 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,226 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,226 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,227 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,228 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,229 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,229 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,229 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,260 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-12-02 17:09:07,260 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-12-02 17:09:07,261 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-12-02 17:09:07,262 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-12-02 17:09:07,262 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-12-02 17:09:07,263 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-12-02 17:09:07,263 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-12-02 17:09:07,263 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-12-02 17:09:07,264 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-12-02 17:09:07,264 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-12-02 17:09:07,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2023-12-02 17:09:07,380 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,381 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,387 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,388 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,390 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,391 WARN L1590 CHandler]: Possible shadowing of function index [2023-12-02 17:09:07,394 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4773) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.countNumberOfPrimitiveElementInType(InitializationHandler.java:1056) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.lambda$3(InitializationHandler.java:1046) at java.base/java.util.stream.ReferencePipeline$5$1.accept(ReferencePipeline.java:229) at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.LongPipeline.reduce(LongPipeline.java:474) at java.base/java.util.stream.LongPipeline.sum(LongPipeline.java:432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.countNumberOfPrimitiveElementInType(InitializationHandler.java:1046) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.useConstArrayInitialization(InitializationHandler.java:1022) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.initialize(InitializationHandler.java:262) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.initialize(InitializationHandler.java:208) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:3027) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1156) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:306) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:320) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:386) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:275) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3421) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2441) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:258) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:204) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 17:09:07,399 INFO L158 Benchmark]: Toolchain (without parser) took 2899.22ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 86.2MB in the beginning and 83.1MB in the end (delta: 3.0MB). Peak memory consumption was 81.0MB. Max. memory is 16.1GB. [2023-12-02 17:09:07,399 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:09:07,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2896.79ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 86.2MB in the beginning and 83.1MB in the end (delta: 3.0MB). Peak memory consumption was 81.0MB. Max. memory is 16.1GB. [2023-12-02 17:09:07,401 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2896.79ms. Allocated memory was 119.5MB in the beginning and 148.9MB in the end (delta: 29.4MB). Free memory was 86.2MB in the beginning and 83.1MB in the end (delta: 3.0MB). Peak memory consumption was 81.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7558]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4773) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range