./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/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_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/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_fa4914c1-4afc-4045-a9b3-62560424a7e6/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 1700dd5c77782dec5c8920219f5390de103f3a2bc688b8bdbba094f2a3ac8f3c --- 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 10:50:06,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:50:06,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:50:06,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:50:06,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:50:06,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:50:06,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:50:06,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:50:06,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:50:06,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:50:06,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:50:06,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:50:06,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:50:06,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:50:06,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:50:06,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:50:06,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:50:06,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:50:06,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:50:06,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:50:06,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:50:06,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:50:06,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:50:06,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:50:06,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:50:06,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:50:06,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:50:06,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:50:06,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:50:06,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:50:06,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:50:06,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:50:06,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:50:06,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:50:06,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:50:06,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:50:06,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:50:06,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:50:06,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:50:06,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:50:06,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:50:06,901 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 10:50:06,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:50:06,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:50:06,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:50:06,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:50:06,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:50:06,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:50:06,922 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:50:06,922 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:50:06,922 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:50:06,922 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:50:06,922 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:50:06,922 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:50:06,923 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:50:06,923 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:50:06,923 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:50:06,923 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:50:06,923 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:50:06,923 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:50:06,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:50:06,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:50:06,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:50:06,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:50:06,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:50:06,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:50:06,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:50:06,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:50:06,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:50:06,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:50:06,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:50:06,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:50:06,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:50:06,925 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:50:06,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:50:06,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:50:06,926 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:50:06,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:50:06,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:50:06,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:50:06,926 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_fa4914c1-4afc-4045-a9b3-62560424a7e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1700dd5c77782dec5c8920219f5390de103f3a2bc688b8bdbba094f2a3ac8f3c [2022-12-14 10:50:07,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:50:07,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:50:07,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:50:07,109 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:50:07,109 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:50:07,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2022-12-14 10:50:09,607 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:50:09,985 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:50:09,985 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i [2022-12-14 10:50:10,014 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/data/5d3111bc8/add815ca439644e08327430e5e16364a/FLAGffdb82a30 [2022-12-14 10:50:10,182 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/data/5d3111bc8/add815ca439644e08327430e5e16364a [2022-12-14 10:50:10,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:50:10,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:50:10,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:50:10,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:50:10,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:50:10,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:50:10" (1/1) ... [2022-12-14 10:50:10,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19834e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:10, skipping insertion in model container [2022-12-14 10:50:10,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:50:10" (1/1) ... [2022-12-14 10:50:10,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:50:10,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:50:10,463 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_fa4914c1-4afc-4045-a9b3-62560424a7e6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2022-12-14 10:50:10,469 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_fa4914c1-4afc-4045-a9b3-62560424a7e6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2022-12-14 10:50:11,147 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,148 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,148 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,149 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,149 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,160 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,161 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,163 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,163 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,228 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:50:11,229 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:50:11,229 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:50:11,233 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 10:50:11,234 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 10:50:11,235 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 10:50:11,453 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 10:50:11,454 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 10:50:11,455 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 10:50:11,455 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 10:50:11,456 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 10:50:11,457 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 10:50:11,458 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 10:50:11,458 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 10:50:11,459 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 10:50:11,459 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 10:50:11,460 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 10:50:11,580 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 10:50:11,597 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:50:11,610 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 10:50:11,618 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:50:11,646 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,646 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,685 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 10:50:11,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:50:11,721 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:50:11,731 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_fa4914c1-4afc-4045-a9b3-62560424a7e6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4504,4517] [2022-12-14 10:50:11,731 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_fa4914c1-4afc-4045-a9b3-62560424a7e6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness_negated.i[4564,4577] [2022-12-14 10:50:11,752 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,752 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,753 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,753 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,753 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,757 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,757 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,762 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:50:11,763 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:50:11,763 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 10:50:11,765 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 10:50:11,766 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 10:50:11,766 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 10:50:11,778 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 10:50:11,779 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 10:50:11,779 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 10:50:11,780 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 10:50:11,780 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 10:50:11,781 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 10:50:11,781 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 10:50:11,781 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 10:50:11,782 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 10:50:11,782 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 10:50:11,782 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 10:50:11,794 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 10:50:11,803 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:50:11,814 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 10:50:11,830 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:50:11,847 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,847 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 10:50:11,863 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 10:50:11,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:50:11,993 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:50:11,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11 WrapperNode [2022-12-14 10:50:11,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:50:11,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:50:11,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:50:11,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:50:11,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,094 INFO L138 Inliner]: procedures = 691, calls = 2648, calls flagged for inlining = 58, calls inlined = 4, statements flattened = 828 [2022-12-14 10:50:12,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:50:12,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:50:12,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:50:12,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:50:12,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:50:12,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:50:12,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:50:12,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:50:12,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (1/1) ... [2022-12-14 10:50:12,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:50:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:50:12,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:50:12,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:50:12,189 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 10:50:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 10:50:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:50:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 10:50:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 10:50:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:50:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2022-12-14 10:50:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2022-12-14 10:50:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 10:50:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 10:50:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:50:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:50:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-12-14 10:50:12,191 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-12-14 10:50:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:50:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:50:12,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:50:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 10:50:12,191 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 10:50:12,191 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 10:50:12,192 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 10:50:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 10:50:12,192 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 10:50:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:50:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:50:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:50:12,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:50:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-12-14 10:50:12,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-12-14 10:50:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lookup [2022-12-14 10:50:12,201 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lookup [2022-12-14 10:50:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:50:12,397 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:50:12,399 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:50:13,363 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:50:13,518 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:50:13,519 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 10:50:13,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:50:13 BoogieIcfgContainer [2022-12-14 10:50:13,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:50:13,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:50:13,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:50:13,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:50:13,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:50:10" (1/3) ... [2022-12-14 10:50:13,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752a80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:50:13, skipping insertion in model container [2022-12-14 10:50:13,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:50:11" (2/3) ... [2022-12-14 10:50:13,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752a80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:50:13, skipping insertion in model container [2022-12-14 10:50:13,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:50:13" (3/3) ... [2022-12-14 10:50:13,530 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness_negated.i [2022-12-14 10:50:13,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:50:13,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:50:13,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:50:13,596 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;@76167de5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:50:13,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:50:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 57 states have internal predecessors, (68), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-12-14 10:50:13,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 10:50:13,606 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:50:13,606 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-12-14 10:50:13,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:50:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:50:13,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1596270366, now seen corresponding path program 1 times [2022-12-14 10:50:13,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:50:13,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671837521] [2022-12-14 10:50:13,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:50:13,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:50:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:50:18,943 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-14 10:50:18,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:50:18,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671837521] [2022-12-14 10:50:18,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671837521] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:50:18,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551911977] [2022-12-14 10:50:18,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:50:18,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:50:18,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:50:18,946 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:50:18,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa4914c1-4afc-4045-a9b3-62560424a7e6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:50:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:50:19,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 2642 conjuncts, 95 conjunts are in the unsatisfiable core [2022-12-14 10:50:19,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:50:19,620 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 10:50:19,625 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 10:50:20,093 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 17 treesize of output 13 [2022-12-14 10:50:20,099 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 17 treesize of output 13 [2022-12-14 10:50:20,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 10:50:20,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 10:50:20,119 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 6 treesize of output 5 [2022-12-14 10:50:21,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:50:21,315 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 10:50:21,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 39 [2022-12-14 10:50:21,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:50:21,326 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-12-14 10:50:21,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 32 [2022-12-14 10:50:21,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-12-14 10:50:21,724 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 10:50:21,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:50:22,559 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-12-14 10:50:33,335 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.