./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --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 602c22a5759f33fe3c7a18e3ef1531ea38defb370e298f7d0c16de4a5734f1a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:20:29,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:20:29,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:20:29,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:20:29,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:20:29,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:20:29,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:20:29,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:20:29,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:20:29,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:20:29,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:20:29,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:20:29,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:20:29,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:20:29,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:20:29,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:20:29,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:20:29,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:20:29,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:20:29,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:20:29,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:20:29,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:20:29,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:20:29,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:20:29,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:20:29,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:20:29,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:20:29,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:20:29,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:20:29,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:20:29,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:20:29,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:20:29,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:20:29,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:20:29,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:20:29,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:20:29,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:20:29,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:20:29,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:20:29,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:20:29,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:20:29,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:20:29,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:20:29,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:20:29,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:20:29,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:20:29,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:20:29,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:20:29,541 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:20:29,541 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:20:29,541 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:20:29,542 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:20:29,543 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:20:29,543 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:20:29,543 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:20:29,543 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:20:29,544 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:20:29,544 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:20:29,544 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:20:29,544 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:20:29,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:20:29,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:20:29,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:20:29,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:20:29,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:20:29,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:20:29,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:20:29,548 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:20:29,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:20:29,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:20:29,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:20:29,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:20:29,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:20:29,550 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:20:29,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:20:29,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:20:29,551 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:20:29,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:20:29,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:20:29,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:20:29,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 602c22a5759f33fe3c7a18e3ef1531ea38defb370e298f7d0c16de4a5734f1a7 [2022-11-19 07:20:29,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:20:29,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:20:29,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:20:29,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:20:29,881 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:20:29,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i [2022-11-19 07:20:29,951 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/data/9ca35dde6/880566c863c740a99c7eb35e7a30226e/FLAGc6fef0b07 [2022-11-19 07:20:30,834 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:20:30,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i [2022-11-19 07:20:30,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/data/9ca35dde6/880566c863c740a99c7eb35e7a30226e/FLAGc6fef0b07 [2022-11-19 07:20:31,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/data/9ca35dde6/880566c863c740a99c7eb35e7a30226e [2022-11-19 07:20:31,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:20:31,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:20:31,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:20:31,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:20:31,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:20:31,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:20:31" (1/1) ... [2022-11-19 07:20:31,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0baf29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:31, skipping insertion in model container [2022-11-19 07:20:31,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:20:31" (1/1) ... [2022-11-19 07:20:31,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:20:31,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:20:31,779 WARN L234 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_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4494,4507] [2022-11-19 07:20:31,787 WARN L234 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_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4554,4567] [2022-11-19 07:20:32,666 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:20:32,787 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,791 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,802 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,803 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,804 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,818 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,827 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,832 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,835 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,837 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,840 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,842 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:32,844 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,241 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:20:33,242 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:20:33,244 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:20:33,245 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:20:33,247 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:20:33,247 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:20:33,248 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:20:33,249 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:20:33,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:20:33,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:20:33,408 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,416 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:20:33,521 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:20:33,549 WARN L234 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_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4494,4507] [2022-11-19 07:20:33,557 WARN L234 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_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i[4554,4567] [2022-11-19 07:20:33,627 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-19 07:20:33,667 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,681 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,681 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,682 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,684 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,692 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,698 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,700 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,704 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,706 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,710 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,711 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,711 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-19 07:20:33,768 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-19 07:20:33,769 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-19 07:20:33,770 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-19 07:20:33,771 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-19 07:20:33,772 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-19 07:20:33,772 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-19 07:20:33,773 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-19 07:20:33,774 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-19 07:20:33,774 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-19 07:20:33,792 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,798 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-19 07:20:33,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:20:34,046 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:20:34,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34 WrapperNode [2022-11-19 07:20:34,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:20:34,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:20:34,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:20:34,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:20:34,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,214 INFO L138 Inliner]: procedures = 690, calls = 1578, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 584 [2022-11-19 07:20:34,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:20:34,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:20:34,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:20:34,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:20:34,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,272 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:20:34,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:20:34,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:20:34,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:20:34,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (1/1) ... [2022-11-19 07:20:34,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:20:34,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:34,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:20:34,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:20:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:20:34,402 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-19 07:20:34,403 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-19 07:20:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-19 07:20:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-19 07:20:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-19 07:20:34,404 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-19 07:20:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:20:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-19 07:20:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-19 07:20:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:20:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:20:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:20:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:20:34,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:20:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:20:34,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:20:34,407 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-19 07:20:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-19 07:20:34,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-19 07:20:34,408 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-19 07:20:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:20:34,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:20:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:20:34,409 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2022-11-19 07:20:34,410 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2022-11-19 07:20:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:20:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:20:34,410 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-19 07:20:34,410 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-19 07:20:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-19 07:20:34,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-19 07:20:34,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:20:34,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:20:34,887 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:20:34,892 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:20:35,774 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:20:35,995 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:20:35,996 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:20:35,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:20:35 BoogieIcfgContainer [2022-11-19 07:20:35,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:20:36,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:20:36,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:20:36,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:20:36,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:20:31" (1/3) ... [2022-11-19 07:20:36,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c3549b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:20:36, skipping insertion in model container [2022-11-19 07:20:36,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:34" (2/3) ... [2022-11-19 07:20:36,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c3549b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:20:36, skipping insertion in model container [2022-11-19 07:20:36,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:20:35" (3/3) ... [2022-11-19 07:20:36,012 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness.i [2022-11-19 07:20:36,038 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:20:36,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:20:36,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:20:36,152 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=LoopsAndPotentialCycles, 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;@197e301a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:20:36,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:20:36,158 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 40 states have (on average 1.15) internal successors, (46), 41 states have internal predecessors, (46), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-11-19 07:20:36,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 07:20:36,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:36,175 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:36,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:36,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:36,184 INFO L85 PathProgramCache]: Analyzing trace with hash 92682918, now seen corresponding path program 1 times [2022-11-19 07:20:36,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:36,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246806501] [2022-11-19 07:20:36,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:36,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-19 07:20:37,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:37,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246806501] [2022-11-19 07:20:37,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246806501] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:20:37,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009132679] [2022-11-19 07:20:37,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:37,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:20:37,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:37,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:20:37,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:20:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:37,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:20:37,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:20:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 07:20:38,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:20:38,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009132679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:38,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:20:38,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-19 07:20:38,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007989722] [2022-11-19 07:20:38,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:38,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:20:38,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:38,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:20:38,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:20:38,091 INFO L87 Difference]: Start difference. First operand has 78 states, 40 states have (on average 1.15) internal successors, (46), 41 states have internal predecessors, (46), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 07:20:38,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:38,564 INFO L93 Difference]: Finished difference Result 130 states and 170 transitions. [2022-11-19 07:20:38,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:20:38,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2022-11-19 07:20:38,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:38,582 INFO L225 Difference]: With dead ends: 130 [2022-11-19 07:20:38,582 INFO L226 Difference]: Without dead ends: 78 [2022-11-19 07:20:38,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:20:38,593 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 17 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:38,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 230 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:20:38,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-19 07:20:38,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-19 07:20:38,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 40 states have (on average 1.125) internal successors, (45), 42 states have internal predecessors, (45), 25 states have call successors, (25), 11 states have call predecessors, (25), 12 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2022-11-19 07:20:38,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2022-11-19 07:20:38,681 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 47 [2022-11-19 07:20:38,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:38,682 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2022-11-19 07:20:38,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-19 07:20:38,683 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2022-11-19 07:20:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-19 07:20:38,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:38,686 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2022-11-19 07:20:38,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:20:38,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:20:38,887 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:38,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:38,887 INFO L85 PathProgramCache]: Analyzing trace with hash 278143664, now seen corresponding path program 1 times [2022-11-19 07:20:38,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:38,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757892167] [2022-11-19 07:20:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:38,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:39,073 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:20:39,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [890978464] [2022-11-19 07:20:39,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:39,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:20:39,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:39,076 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:20:39,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:20:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:39,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:20:39,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:20:39,769 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 07:20:39,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:20:39,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:39,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757892167] [2022-11-19 07:20:39,770 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:20:39,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890978464] [2022-11-19 07:20:39,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890978464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:39,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:39,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:20:39,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793560762] [2022-11-19 07:20:39,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:39,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:20:39,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:39,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:20:39,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:20:39,774 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-19 07:20:40,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:40,265 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2022-11-19 07:20:40,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:20:40,266 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 56 [2022-11-19 07:20:40,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:40,268 INFO L225 Difference]: With dead ends: 123 [2022-11-19 07:20:40,268 INFO L226 Difference]: Without dead ends: 76 [2022-11-19 07:20:40,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:20:40,270 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 21 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:40,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 334 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:20:40,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-19 07:20:40,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-19 07:20:40,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 40 states have internal predecessors, (43), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-19 07:20:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2022-11-19 07:20:40,291 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 56 [2022-11-19 07:20:40,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:40,292 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2022-11-19 07:20:40,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-19 07:20:40,292 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2022-11-19 07:20:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 07:20:40,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:40,299 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:40,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:20:40,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:20:40,510 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:40,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:40,510 INFO L85 PathProgramCache]: Analyzing trace with hash 262676056, now seen corresponding path program 1 times [2022-11-19 07:20:40,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:40,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617837848] [2022-11-19 07:20:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:40,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:40,667 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:20:40,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680483578] [2022-11-19 07:20:40,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:40,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:20:40,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:40,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:20:40,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fad6f6-828c-4e2f-b7ec-90bdb322cec1/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:20:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:41,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 2390 conjuncts, 311 conjunts are in the unsatisfiable core [2022-11-19 07:20:41,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:20:41,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 07:20:43,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:43,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:20:43,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:43,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:43,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-11-19 07:20:43,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:43,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 07:20:44,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:44,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-19 07:20:44,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:44,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 07:20:44,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:44,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 07:20:44,437 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 07:20:44,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 07:20:47,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:47,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:47,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:57,611 WARN L233 SmtUtils]: Spent 10.33s on a formula simplification. DAG size of input: 49 DAG size of output: 29 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:20:57,612 INFO L321 Elim1Store]: treesize reduction 79, result has 36.8 percent of original size [2022-11-19 07:20:57,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 212 treesize of output 256 [2022-11-19 07:20:57,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:57,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 137 [2022-11-19 07:20:57,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:57,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 121 [2022-11-19 07:25:15,043 INFO L321 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2022-11-19 07:25:15,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 30 [2022-11-19 07:25:15,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:25:49,584 INFO L321 Elim1Store]: treesize reduction 28, result has 30.0 percent of original size [2022-11-19 07:25:49,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 33 [2022-11-19 07:25:49,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:25:49,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:26:18,026 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= aws_array_list_clear_~list.base |v_aws_array_list_is_valid_~#required_size~0.base_18|) [2022-11-19 07:26:20,027 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= aws_array_list_clear_~list.base |v_aws_array_list_is_valid_~#required_size~0.base_18|) [2022-11-19 07:26:20,028 INFO L217 Elim1Store]: Index analysis took 4003 ms [2022-11-19 07:26:52,069 WARN L233 SmtUtils]: Spent 32.04s on a formula simplification. DAG size of input: 14 DAG size of output: 8 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:26:52,070 INFO L321 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2022-11-19 07:26:52,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-19 07:27:00,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:27:40,346 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= aws_array_list_clear_~list.base v_prenex_1) [2022-11-19 07:27:42,348 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= aws_array_list_clear_~list.base v_prenex_1) [2022-11-19 07:27:44,351 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= aws_array_list_clear_~list.base |v_aws_array_list_is_valid_~#required_size~0.base_18|) [2022-11-19 07:27:46,353 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= aws_array_list_clear_~list.base |v_aws_array_list_is_valid_~#required_size~0.base_18|) [2022-11-19 07:27:48,356 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= v_prenex_1 |v_aws_array_list_is_valid_~#required_size~0.base_18|) [2022-11-19 07:27:48,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:27:48,357 INFO L217 Elim1Store]: Index analysis took 10014 ms [2022-11-19 07:28:32,418 WARN L233 SmtUtils]: Spent 44.06s on a formula simplification. DAG size of input: 19 DAG size of output: 10 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:28:32,419 INFO L321 Elim1Store]: treesize reduction 28, result has 30.0 percent of original size [2022-11-19 07:28:32,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 33 [2022-11-19 07:28:40,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:28:56,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-19 07:33:44,338 INFO L321 Elim1Store]: treesize reduction 106, result has 36.5 percent of original size [2022-11-19 07:33:44,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 278 treesize of output 313 [2022-11-19 07:34:36,890 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:35:18,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:35:18,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:35:18,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:35:18,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-19 07:35:31,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:35:31,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:35:31,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:35:31,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 72