./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh --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 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab --- 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-2329fc7 [2022-12-14 07:59:18,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:59:18,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:59:18,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:59:18,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:59:18,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:59:18,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:59:18,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:59:18,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:59:18,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:59:18,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:59:18,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:59:18,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:59:18,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:59:18,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:59:18,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:59:18,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:59:18,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:59:18,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:59:18,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:59:18,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:59:18,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:59:18,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:59:18,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:59:18,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:59:18,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:59:18,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:59:18,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:59:18,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:59:18,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:59:18,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:59:18,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:59:18,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:59:18,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:59:18,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:59:18,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:59:18,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:59:18,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:59:18,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:59:18,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:59:18,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:59:18,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:59:18,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:59:18,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:59:18,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:59:18,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:59:18,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:59:18,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:59:18,619 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:59:18,619 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:59:18,620 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:59:18,620 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:59:18,620 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:59:18,620 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:59:18,620 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:59:18,620 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:59:18,621 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:59:18,621 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:59:18,621 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:59:18,621 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:59:18,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:59:18,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:59:18,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:59:18,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:59:18,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:59:18,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:59:18,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:59:18,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:59:18,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:59:18,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:59:18,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:59:18,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:59:18,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:59:18,624 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:59:18,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:59:18,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:59:18,625 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:59:18,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:59:18,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:59:18,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:59:18,625 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_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ec24500153ff48401c44b6cbf6e64bbffda498093f21927cfcfb52ad2376ab [2022-12-14 07:59:18,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:59:18,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:59:18,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:59:18,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:59:18,810 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:59:18,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2022-12-14 07:59:21,380 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:59:21,678 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:59:21,679 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i [2022-12-14 07:59:21,700 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/data/da9c511d1/d5c2f478d28b4d21b5eb534d019c46c7/FLAG735235a51 [2022-12-14 07:59:21,941 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/data/da9c511d1/d5c2f478d28b4d21b5eb534d019c46c7 [2022-12-14 07:59:21,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:59:21,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:59:21,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:59:21,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:59:21,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:59:21,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:59:21" (1/1) ... [2022-12-14 07:59:21,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c937d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:21, skipping insertion in model container [2022-12-14 07:59:21,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:59:21" (1/1) ... [2022-12-14 07:59:21,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:59:22,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:59:22,214 WARN L237 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_3a1d2994-8291-4f4c-826f-795f08dc63f3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2022-12-14 07:59:22,220 WARN L237 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_3a1d2994-8291-4f4c-826f-795f08dc63f3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2022-12-14 07:59:22,763 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:22,763 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:22,763 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:22,764 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:22,765 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:22,774 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:22,774 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:22,775 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:22,776 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:22,829 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:59:22,829 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:59:22,830 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:59:22,833 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 07:59:22,835 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 07:59:22,836 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 07:59:23,057 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 07:59:23,058 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 07:59:23,059 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 07:59:23,060 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 07:59:23,060 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 07:59:23,061 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 07:59:23,062 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 07:59:23,063 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 07:59:23,063 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 07:59:23,064 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 07:59:23,064 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 07:59:23,181 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 07:59:23,205 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 07:59:23,212 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 07:59:23,231 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 07:59:23,237 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,237 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,283 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 07:59:23,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:59:23,320 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:59:23,329 WARN L237 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_3a1d2994-8291-4f4c-826f-795f08dc63f3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4498,4511] [2022-12-14 07:59:23,330 WARN L237 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_3a1d2994-8291-4f4c-826f-795f08dc63f3/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness.i[4558,4571] [2022-12-14 07:59:23,353 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,353 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,353 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,353 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,354 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,358 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,358 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,359 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,359 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,364 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:59:23,364 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:59:23,364 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 07:59:23,366 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 07:59:23,367 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 07:59:23,367 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 07:59:23,380 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 07:59:23,381 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 07:59:23,382 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 07:59:23,382 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 07:59:23,383 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 07:59:23,383 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 07:59:23,383 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 07:59:23,384 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 07:59:23,384 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 07:59:23,384 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 07:59:23,384 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 07:59:23,398 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 07:59:23,412 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 07:59:23,416 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 07:59:23,428 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 07:59:23,432 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,432 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 07:59:23,449 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 07:59:23,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:59:23,699 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:59:23,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23 WrapperNode [2022-12-14 07:59:23,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:59:23,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:59:23,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:59:23,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:59:23,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,818 INFO L138 Inliner]: procedures = 690, calls = 2638, calls flagged for inlining = 61, calls inlined = 9, statements flattened = 867 [2022-12-14 07:59:23,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:59:23,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:59:23,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:59:23,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:59:23,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,872 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:59:23,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:59:23,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:59:23,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:59:23,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (1/1) ... [2022-12-14 07:59:23,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:59:23,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:59:23,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:59:23,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:59:23,948 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-12-14 07:59:23,948 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-12-14 07:59:23,948 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 07:59:23,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 07:59:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:59:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 07:59:23,949 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 07:59:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:59:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 07:59:23,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 07:59:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_from_buf [2022-12-14 07:59:23,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_from_buf [2022-12-14 07:59:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:59:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:59:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:59:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:59:23,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:59:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 07:59:23,950 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 07:59:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 07:59:23,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 07:59:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 07:59:23,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 07:59:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:59:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:59:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:59:23,950 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 07:59:23,951 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 07:59:23,951 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 07:59:23,951 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 07:59:23,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:59:23,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:59:24,147 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:59:24,148 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:59:24,935 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:59:25,178 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:59:25,178 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:59:25,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:59:25 BoogieIcfgContainer [2022-12-14 07:59:25,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:59:25,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:59:25,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:59:25,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:59:25,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:59:21" (1/3) ... [2022-12-14 07:59:25,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad453d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:59:25, skipping insertion in model container [2022-12-14 07:59:25,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:59:23" (2/3) ... [2022-12-14 07:59:25,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad453d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:59:25, skipping insertion in model container [2022-12-14 07:59:25,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:59:25" (3/3) ... [2022-12-14 07:59:25,188 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_buf_harness.i [2022-12-14 07:59:25,201 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:59:25,201 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:59:25,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:59:25,247 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;@27700d11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:59:25,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:59:25,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-12-14 07:59:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 07:59:25,257 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:59:25,257 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 07:59:25,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:59:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:59:25,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1625570894, now seen corresponding path program 1 times [2022-12-14 07:59:25,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:59:25,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084817797] [2022-12-14 07:59:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:59:25,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:59:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:59:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 07:59:30,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:59:30,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084817797] [2022-12-14 07:59:30,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084817797] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:59:30,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:59:30,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-14 07:59:30,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435494216] [2022-12-14 07:59:30,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:59:30,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 07:59:30,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:59:30,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 07:59:30,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-12-14 07:59:30,035 INFO L87 Difference]: Start difference. First operand has 88 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 8 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-12-14 07:59:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:59:31,310 INFO L93 Difference]: Finished difference Result 157 states and 215 transitions. [2022-12-14 07:59:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 07:59:31,312 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 8 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) Word has length 43 [2022-12-14 07:59:31,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:59:31,319 INFO L225 Difference]: With dead ends: 157 [2022-12-14 07:59:31,319 INFO L226 Difference]: Without dead ends: 97 [2022-12-14 07:59:31,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2022-12-14 07:59:31,323 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 36 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:59:31,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 621 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 07:59:31,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-12-14 07:59:31,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2022-12-14 07:59:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 53 states have internal predecessors, (57), 33 states have call successors, (33), 12 states have call predecessors, (33), 11 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2022-12-14 07:59:31,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 122 transitions. [2022-12-14 07:59:31,359 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 122 transitions. Word has length 43 [2022-12-14 07:59:31,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:59:31,360 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 122 transitions. [2022-12-14 07:59:31,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 8 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2022-12-14 07:59:31,360 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 122 transitions. [2022-12-14 07:59:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 07:59:31,361 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:59:31,361 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-12-14 07:59:31,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:59:31,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:59:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:59:31,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1097632539, now seen corresponding path program 1 times [2022-12-14 07:59:31,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:59:31,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515214809] [2022-12-14 07:59:31,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:59:31,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:59:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:59:35,505 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 07:59:35,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:59:35,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515214809] [2022-12-14 07:59:35,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515214809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:59:35,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:59:35,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-14 07:59:35,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623435872] [2022-12-14 07:59:35,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:59:35,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 07:59:35,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:59:35,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 07:59:35,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-12-14 07:59:35,509 INFO L87 Difference]: Start difference. First operand 96 states and 122 transitions. Second operand has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 9 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2022-12-14 07:59:36,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:59:36,678 INFO L93 Difference]: Finished difference Result 134 states and 173 transitions. [2022-12-14 07:59:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 07:59:36,679 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 9 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) Word has length 47 [2022-12-14 07:59:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:59:36,681 INFO L225 Difference]: With dead ends: 134 [2022-12-14 07:59:36,681 INFO L226 Difference]: Without dead ends: 132 [2022-12-14 07:59:36,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-12-14 07:59:36,682 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 76 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:59:36,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 842 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 07:59:36,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-14 07:59:36,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 88. [2022-12-14 07:59:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 48 states have (on average 1.125) internal successors, (54), 49 states have internal predecessors, (54), 28 states have call successors, (28), 11 states have call predecessors, (28), 11 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-12-14 07:59:36,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 109 transitions. [2022-12-14 07:59:36,703 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 109 transitions. Word has length 47 [2022-12-14 07:59:36,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:59:36,703 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 109 transitions. [2022-12-14 07:59:36,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 9 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2022-12-14 07:59:36,703 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 109 transitions. [2022-12-14 07:59:36,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 07:59:36,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:59:36,704 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1] [2022-12-14 07:59:36,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:59:36,705 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:59:36,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:59:36,705 INFO L85 PathProgramCache]: Analyzing trace with hash 854433692, now seen corresponding path program 1 times [2022-12-14 07:59:36,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:59:36,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328866720] [2022-12-14 07:59:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:59:36,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:59:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:59:44,342 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 07:59:44,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:59:44,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328866720] [2022-12-14 07:59:44,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328866720] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:59:44,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536399373] [2022-12-14 07:59:44,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:59:44,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:59:44,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:59:44,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:59:44,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1d2994-8291-4f4c-826f-795f08dc63f3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:59:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:59:44,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 130 conjunts are in the unsatisfiable core [2022-12-14 07:59:44,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:59:45,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 07:59:45,089 INFO L350 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 13 treesize of output 9 [2022-12-14 07:59:47,954 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-12-14 07:59:47,954 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 2 case distinctions, treesize of input 50 treesize of output 94 [2022-12-14 07:59:47,985 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-12-14 07:59:47,986 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 20 treesize of output 34 [2022-12-14 07:59:48,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 07:59:48,038 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 07:59:48,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:59:48,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2022-12-14 07:59:48,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-12-14 07:59:48,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2022-12-14 07:59:48,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 07:59:49,164 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-12-14 07:59:49,164 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 20 treesize of output 34 [2022-12-14 07:59:49,226 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-12-14 07:59:49,227 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 2 case distinctions, treesize of input 50 treesize of output 94 [2022-12-14 07:59:49,257 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-12-14 07:59:49,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 53 treesize of output 54 [2022-12-14 07:59:49,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 07:59:49,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:49,294 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:59:49,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-12-14 07:59:49,336 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 9 treesize of output 7 [2022-12-14 07:59:49,419 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-12-14 07:59:49,419 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 20 treesize of output 34 [2022-12-14 07:59:49,474 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-12-14 07:59:49,474 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 2 case distinctions, treesize of input 50 treesize of output 94 [2022-12-14 07:59:49,513 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-12-14 07:59:49,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 53 treesize of output 54 [2022-12-14 07:59:49,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 07:59:49,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:49,553 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:59:49,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-12-14 07:59:49,586 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 9 treesize of output 7 [2022-12-14 07:59:49,673 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-12-14 07:59:49,673 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 20 treesize of output 34 [2022-12-14 07:59:49,739 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-12-14 07:59:49,739 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 2 case distinctions, treesize of input 50 treesize of output 94 [2022-12-14 07:59:49,777 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-12-14 07:59:49,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 53 treesize of output 54 [2022-12-14 07:59:49,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 07:59:49,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:49,818 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:59:49,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-12-14 07:59:49,840 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 9 treesize of output 7 [2022-12-14 07:59:49,927 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-12-14 07:59:49,928 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 20 treesize of output 34 [2022-12-14 07:59:49,975 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-12-14 07:59:49,975 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 2 case distinctions, treesize of input 50 treesize of output 94 [2022-12-14 07:59:50,002 INFO L321 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-12-14 07:59:50,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 53 treesize of output 54 [2022-12-14 07:59:50,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 07:59:50,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:50,031 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:59:50,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-12-14 07:59:50,068 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 9 treesize of output 7 [2022-12-14 07:59:50,369 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_old(#memory_$Pointer$.base)| |c_aws_byte_cursor_from_buf_#in~buf.base|) (+ |c_aws_byte_cursor_from_buf_#in~buf.offset| 8)))) (or (exists ((v_ArrVal_200 Int) (|aws_byte_cursor_from_buf_~#cur~0.base| Int) (v_ArrVal_197 Int)) (and (not (= (select (select |c_#memory_$Pointer$.base| |aws_byte_cursor_from_buf_~#cur~0.base|) 8) 0)) (= (store |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base| (store (store (select |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 .cse0) 0 v_ArrVal_197)) |c_#memory_$Pointer$.base|) (not (= |aws_byte_cursor_from_buf_~#cur~0.base| 0)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| (let ((.cse1 (store (select |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 v_ArrVal_200))) (store .cse1 0 (select (select (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| .cse1) |c_aws_byte_cursor_from_buf_#in~buf.base|) |c_aws_byte_cursor_from_buf_#in~buf.offset|))))))) (exists ((v_ArrVal_200 Int) (|aws_byte_cursor_from_buf_~#cur~0.base| Int) (v_ArrVal_197 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base| (store (store (select |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 .cse0) 0 v_ArrVal_197)) |c_#memory_$Pointer$.base|) (not (= |aws_byte_cursor_from_buf_~#cur~0.base| 0)) (= (mod (select (select |c_#memory_int| |aws_byte_cursor_from_buf_~#cur~0.base|) 0) 18446744073709551616) 0) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| (let ((.cse2 (store (select |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 v_ArrVal_200))) (store .cse2 0 (select (select (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| .cse2) |c_aws_byte_cursor_from_buf_#in~buf.base|) |c_aws_byte_cursor_from_buf_#in~buf.offset|))))))) (exists ((v_ArrVal_200 Int) (|aws_byte_cursor_from_buf_~#cur~0.base| Int) (v_ArrVal_197 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base| (store (store (select |c_old(#memory_$Pointer$.base)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 .cse0) 0 v_ArrVal_197)) |c_#memory_$Pointer$.base|) (not (= (select (select |c_#memory_$Pointer$.offset| |aws_byte_cursor_from_buf_~#cur~0.base|) 8) 0)) (not (= |aws_byte_cursor_from_buf_~#cur~0.base| 0)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| (let ((.cse3 (store (select |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base|) 8 v_ArrVal_200))) (store .cse3 0 (select (select (store |c_old(#memory_int)| |aws_byte_cursor_from_buf_~#cur~0.base| .cse3) |c_aws_byte_cursor_from_buf_#in~buf.base|) |c_aws_byte_cursor_from_buf_#in~buf.offset|))))))))) is different from true [2022-12-14 07:59:50,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:59:50,588 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 07:59:50,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 241 [2022-12-14 07:59:50,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:50,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:50,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:50,661 INFO L321 Elim1Store]: treesize reduction 48, result has 31.4 percent of original size [2022-12-14 07:59:50,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 201 [2022-12-14 07:59:51,152 INFO L321 Elim1Store]: treesize reduction 78, result has 29.7 percent of original size [2022-12-14 07:59:51,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 121 [2022-12-14 07:59:51,164 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 9 treesize of output 7 [2022-12-14 07:59:51,211 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 57 treesize of output 37 [2022-12-14 07:59:51,237 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 57 treesize of output 37 [2022-12-14 07:59:51,288 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 57 treesize of output 37 [2022-12-14 07:59:51,484 INFO L321 Elim1Store]: treesize reduction 78, result has 29.7 percent of original size [2022-12-14 07:59:51,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 121 [2022-12-14 07:59:51,498 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 9 treesize of output 7 [2022-12-14 07:59:51,527 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 57 treesize of output 37 [2022-12-14 07:59:51,570 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 57 treesize of output 37 [2022-12-14 07:59:51,603 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 57 treesize of output 37 [2022-12-14 07:59:51,921 INFO L321 Elim1Store]: treesize reduction 98, result has 28.5 percent of original size [2022-12-14 07:59:51,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 74 treesize of output 99 [2022-12-14 07:59:52,114 INFO L321 Elim1Store]: treesize reduction 112, result has 22.8 percent of original size [2022-12-14 07:59:52,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 648 treesize of output 645 [2022-12-14 07:59:52,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:52,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 421 [2022-12-14 07:59:53,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:53,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 105 [2022-12-14 07:59:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:53,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 105 [2022-12-14 07:59:53,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:53,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 281 [2022-12-14 07:59:53,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:53,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 128 [2022-12-14 07:59:53,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:53,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 128 [2022-12-14 07:59:53,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:59:53,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2022-12-14 07:59:53,632 INFO L321 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2022-12-14 07:59:53,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 4 case distinctions, treesize of input 65 treesize of output 62 [2022-12-14 07:59:53,641 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 9 treesize of output 7 [2022-12-14 07:59:53,655 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 33 treesize of output 21 [2022-12-14 07:59:53,673 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 33 treesize of output 21 [2022-12-14 07:59:56,228 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:59:56,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 81 treesize of output 65 [2022-12-14 07:59:56,254 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:59:56,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-12-14 07:59:56,411 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 07:59:56,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:59:58,623 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-12-14 08:06:10,452 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.