./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_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_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/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_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/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_4b4d0a49-5ea9-487d-8713-ad4b1a060762/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 efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --- 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 08:51:15,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:51:15,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:51:15,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:51:15,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:51:15,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:51:15,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:51:15,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:51:15,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:51:15,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:51:15,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:51:15,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:51:15,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:51:15,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:51:15,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:51:15,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:51:15,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:51:15,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:51:15,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:51:15,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:51:15,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:51:15,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:51:15,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:51:15,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:51:15,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:51:15,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:51:15,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:51:15,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:51:15,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:51:15,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:51:15,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:51:15,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:51:15,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:51:15,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:51:15,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:51:15,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:51:15,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:51:15,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:51:15,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:51:15,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:51:15,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:51:15,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 08:51:15,910 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:51:15,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:51:15,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:51:15,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:51:15,912 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:51:15,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:51:15,912 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:51:15,912 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:51:15,912 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:51:15,912 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:51:15,913 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:51:15,913 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:51:15,913 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:51:15,913 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:51:15,913 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:51:15,914 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:51:15,914 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:51:15,914 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:51:15,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:51:15,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:51:15,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:51:15,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:51:15,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:51:15,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:51:15,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:51:15,916 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:51:15,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:51:15,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:51:15,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:51:15,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:51:15,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:51:15,917 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:51:15,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:51:15,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:51:15,917 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:51:15,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:51:15,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:51:15,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:51:15,918 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_4b4d0a49-5ea9-487d-8713-ad4b1a060762/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e [2022-12-14 08:51:16,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:51:16,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:51:16,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:51:16,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:51:16,146 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:51:16,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2022-12-14 08:51:18,828 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:51:19,207 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:51:19,208 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i [2022-12-14 08:51:19,231 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/data/6d5f51747/b87422958a334fc8ba39a531b79ee536/FLAGf051137ca [2022-12-14 08:51:19,244 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/data/6d5f51747/b87422958a334fc8ba39a531b79ee536 [2022-12-14 08:51:19,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:51:19,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:51:19,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:51:19,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:51:19,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:51:19,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:51:19" (1/1) ... [2022-12-14 08:51:19,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ffbb2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:19, skipping insertion in model container [2022-12-14 08:51:19,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:51:19" (1/1) ... [2022-12-14 08:51:19,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:51:19,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:51:19,535 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_4b4d0a49-5ea9-487d-8713-ad4b1a060762/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2022-12-14 08:51:19,542 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_4b4d0a49-5ea9-487d-8713-ad4b1a060762/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2022-12-14 08:51:20,186 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,187 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,187 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,188 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,189 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,199 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,199 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,201 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,201 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,265 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:51:20,265 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:51:20,266 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:51:20,271 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 08:51:20,273 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 08:51:20,274 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 08:51:20,524 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 08:51:20,525 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 08:51:20,526 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 08:51:20,527 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 08:51:20,528 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 08:51:20,530 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 08:51:20,530 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 08:51:20,531 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 08:51:20,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 08:51:20,533 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 08:51:20,534 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 08:51:20,663 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 08:51:20,677 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:51:20,688 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 08:51:20,695 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:51:20,718 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,718 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,753 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:51:20,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:51:20,787 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:51:20,796 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_4b4d0a49-5ea9-487d-8713-ad4b1a060762/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4489,4502] [2022-12-14 08:51:20,797 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_4b4d0a49-5ea9-487d-8713-ad4b1a060762/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_harness.i[4549,4562] [2022-12-14 08:51:20,832 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,832 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,832 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,833 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,834 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,839 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,840 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,840 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,841 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,847 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:51:20,847 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:51:20,847 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:51:20,850 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 08:51:20,851 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 08:51:20,852 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 08:51:20,870 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 08:51:20,871 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 08:51:20,872 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 08:51:20,873 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 08:51:20,873 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 08:51:20,874 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 08:51:20,874 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 08:51:20,874 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 08:51:20,875 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 08:51:20,875 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 08:51:20,875 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 08:51:20,894 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 08:51:20,906 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:51:20,917 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 08:51:20,923 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:51:20,944 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,944 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:51:20,969 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:51:20,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:51:21,182 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:51:21,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21 WrapperNode [2022-12-14 08:51:21,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:51:21,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:51:21,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:51:21,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:51:21,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,316 INFO L138 Inliner]: procedures = 691, calls = 2665, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 886 [2022-12-14 08:51:21,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:51:21,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:51:21,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:51:21,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:51:21,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:51:21,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:51:21,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:51:21,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:51:21,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (1/1) ... [2022-12-14 08:51:21,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:51:21,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:51:21,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:51:21,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:51:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-12-14 08:51:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-12-14 08:51:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 08:51:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:51:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 08:51:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 08:51:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:51:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 08:51:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 08:51:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:51:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:51:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-12-14 08:51:21,441 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-12-14 08:51:21,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:51:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2022-12-14 08:51:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2022-12-14 08:51:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:51:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:51:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 08:51:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 08:51:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 08:51:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 08:51:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 08:51:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 08:51:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:51:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:51:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-12-14 08:51:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-12-14 08:51:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 08:51:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 08:51:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 08:51:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 08:51:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 08:51:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2022-12-14 08:51:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2022-12-14 08:51:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:51:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2022-12-14 08:51:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2022-12-14 08:51:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:51:21,639 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:51:21,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:51:22,484 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:51:22,604 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:51:22,604 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:51:22,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:51:22 BoogieIcfgContainer [2022-12-14 08:51:22,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:51:22,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:51:22,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:51:22,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:51:22,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:51:19" (1/3) ... [2022-12-14 08:51:22,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73855d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:51:22, skipping insertion in model container [2022-12-14 08:51:22,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:51:21" (2/3) ... [2022-12-14 08:51:22,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73855d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:51:22, skipping insertion in model container [2022-12-14 08:51:22,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:51:22" (3/3) ... [2022-12-14 08:51:22,612 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2022-12-14 08:51:22,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:51:22,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:51:22,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:51:22,666 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;@264fc4bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:51:22,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:51:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-12-14 08:51:22,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 08:51:22,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:51:22,678 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:51:22,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:51:22,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:51:22,683 INFO L85 PathProgramCache]: Analyzing trace with hash -311969516, now seen corresponding path program 1 times [2022-12-14 08:51:22,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:51:22,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292781742] [2022-12-14 08:51:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:51:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:51:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:51:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-14 08:51:37,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:51:37,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292781742] [2022-12-14 08:51:37,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292781742] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:51:37,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597583032] [2022-12-14 08:51:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:51:37,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:51:37,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:51:37,785 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:51:37,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b4d0a49-5ea9-487d-8713-ad4b1a060762/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:51:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:51:38,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 2753 conjuncts, 138 conjunts are in the unsatisfiable core [2022-12-14 08:51:38,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:51:38,387 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 10 treesize of output 8 [2022-12-14 08:51:38,635 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 08:51:39,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:51:39,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:51:39,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:51:39,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:51:39,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 51 [2022-12-14 08:51:39,284 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 38 treesize of output 38 [2022-12-14 08:51:39,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-12-14 08:51:39,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 20 treesize of output 8 [2022-12-14 08:51:39,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-12-14 08:51:48,857 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:51:48,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 47 [2022-12-14 08:51:48,912 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:51:48,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 141 treesize of output 133 [2022-12-14 08:51:49,600 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 35 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 08:51:49,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:51:51,560 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-12-14 08:57:58,798 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.