./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.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_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/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_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/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_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/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 3786ce2aceaca5ca84dec0778e35d89572f0a01b011dce0f08a2904d5a5c52d6 --- 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 12:35:22,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:35:22,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:35:22,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:35:22,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:35:22,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:35:22,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:35:22,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:35:22,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:35:22,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:35:22,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:35:22,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:35:22,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:35:22,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:35:22,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:35:22,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:35:22,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:35:22,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:35:22,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:35:22,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:35:22,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:35:22,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:35:22,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:35:22,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:35:22,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:35:22,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:35:22,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:35:22,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:35:22,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:35:22,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:35:22,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:35:22,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:35:22,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:35:22,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:35:22,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:35:22,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:35:22,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:35:22,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:35:22,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:35:22,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:35:22,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:35:22,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:35:22,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:35:22,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:35:22,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:35:22,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:35:22,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:35:22,142 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:35:22,142 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:35:22,142 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:35:22,142 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:35:22,142 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:35:22,143 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:35:22,143 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:35:22,143 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:35:22,143 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:35:22,143 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:35:22,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:35:22,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:35:22,144 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:35:22,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:35:22,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:35:22,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:35:22,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:35:22,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:35:22,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:35:22,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:35:22,145 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:35:22,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:35:22,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:35:22,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:35:22,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:35:22,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:35:22,146 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:35:22,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:35:22,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:35:22,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:35:22,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:35:22,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:35:22,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:35:22,150 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_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3786ce2aceaca5ca84dec0778e35d89572f0a01b011dce0f08a2904d5a5c52d6 [2022-12-14 12:35:22,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:35:22,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:35:22,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:35:22,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:35:22,325 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:35:22,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i [2022-12-14 12:35:24,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:35:25,147 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:35:25,147 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i [2022-12-14 12:35:25,166 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/data/2a3ca78e6/97964678e0b3467ea0032ae2451bae20/FLAG3b1b4f485 [2022-12-14 12:35:25,177 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/data/2a3ca78e6/97964678e0b3467ea0032ae2451bae20 [2022-12-14 12:35:25,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:35:25,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:35:25,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:35:25,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:35:25,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:35:25,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:35:25" (1/1) ... [2022-12-14 12:35:25,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2684b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:25, skipping insertion in model container [2022-12-14 12:35:25,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:35:25" (1/1) ... [2022-12-14 12:35:25,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:35:25,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:35:25,446 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_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i[4505,4518] [2022-12-14 12:35:25,452 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_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i[4565,4578] [2022-12-14 12:35:26,188 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,189 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,189 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,190 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,191 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,205 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,206 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,208 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,209 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,274 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:35:26,274 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:35:26,275 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:35:26,280 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 12:35:26,282 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 12:35:26,282 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 12:35:26,513 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 12:35:26,514 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 12:35:26,515 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 12:35:26,516 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 12:35:26,517 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 12:35:26,518 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 12:35:26,519 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 12:35:26,520 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 12:35:26,520 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 12:35:26,521 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 12:35:26,521 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 12:35:26,646 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 12:35:26,666 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:35:26,684 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 12:35:26,694 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:35:26,728 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,728 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,779 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 12:35:26,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:35:26,826 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:35:26,836 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_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i[4505,4518] [2022-12-14 12:35:26,836 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_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lexical_harness_negated.i[4565,4578] [2022-12-14 12:35:26,868 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,868 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,868 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,869 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,870 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,875 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,875 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,876 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,876 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,883 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:35:26,884 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:35:26,884 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 12:35:26,887 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 12:35:26,888 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 12:35:26,888 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 12:35:26,907 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 12:35:26,908 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 12:35:26,908 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 12:35:26,909 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 12:35:26,910 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 12:35:26,910 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 12:35:26,911 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 12:35:26,911 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 12:35:26,912 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 12:35:26,912 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 12:35:26,913 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 12:35:26,929 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 12:35:26,936 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:35:26,943 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 12:35:26,947 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:35:26,982 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:26,982 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 12:35:27,005 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 12:35:27,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:35:27,146 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:35:27,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27 WrapperNode [2022-12-14 12:35:27,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:35:27,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:35:27,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:35:27,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:35:27,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,241 INFO L138 Inliner]: procedures = 691, calls = 2655, calls flagged for inlining = 59, calls inlined = 6, statements flattened = 920 [2022-12-14 12:35:27,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:35:27,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:35:27,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:35:27,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:35:27,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,297 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:35:27,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:35:27,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:35:27,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:35:27,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (1/1) ... [2022-12-14 12:35:27,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:35:27,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:35:27,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:35:27,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:35:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 12:35:27,377 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 12:35:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_compare_lexical [2022-12-14 12:35:27,377 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_compare_lexical [2022-12-14 12:35:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 12:35:27,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:35:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 12:35:27,378 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 12:35:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:35:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2022-12-14 12:35:27,378 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2022-12-14 12:35:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 12:35:27,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 12:35:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:35:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:35:27,378 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-12-14 12:35:27,378 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-12-14 12:35:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:35:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:35:27,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:35:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 12:35:27,379 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 12:35:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 12:35:27,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 12:35:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 12:35:27,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 12:35:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:35:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:35:27,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:35:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 12:35:27,380 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 12:35:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:35:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-12-14 12:35:27,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2022-12-14 12:35:27,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:35:27,555 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:35:27,557 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:35:28,353 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:35:28,471 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:35:28,471 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:35:28,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:35:28 BoogieIcfgContainer [2022-12-14 12:35:28,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:35:28,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:35:28,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:35:28,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:35:28,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:35:25" (1/3) ... [2022-12-14 12:35:28,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177031be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:35:28, skipping insertion in model container [2022-12-14 12:35:28,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:35:27" (2/3) ... [2022-12-14 12:35:28,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177031be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:35:28, skipping insertion in model container [2022-12-14 12:35:28,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:35:28" (3/3) ... [2022-12-14 12:35:28,480 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lexical_harness_negated.i [2022-12-14 12:35:28,494 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:35:28,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:35:28,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:35:28,535 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;@1950962b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:35:28,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:35:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-12-14 12:35:28,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-14 12:35:28,546 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:35:28,547 INFO L195 NwaCegarLoop]: trace histogram [9, 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 12:35:28,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:35:28,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:35:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash 890773988, now seen corresponding path program 1 times [2022-12-14 12:35:28,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:35:28,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772564740] [2022-12-14 12:35:28,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:35:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:35:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:35:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-12-14 12:35:32,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:35:32,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772564740] [2022-12-14 12:35:32,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772564740] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:35:32,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869040102] [2022-12-14 12:35:32,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:35:32,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:35:32,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:35:32,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:35:32,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfa16b5-ac5a-4a93-a9e8-fdc06cb84923/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:35:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:35:32,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 2670 conjuncts, 134 conjunts are in the unsatisfiable core [2022-12-14 12:35:32,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:35:32,853 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 12:35:32,965 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 12:35:32,970 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 12:35:32,975 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 12:35:33,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 12:35:33,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 12:35:33,331 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-14 12:35:33,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:35:34,084 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2022-12-14 12:35:45,104 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.