./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_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_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/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_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/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_ce0a22b0-441a-4e04-8d72-aca7715c4092/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 f64b5393bce526ec4462abc83c64df9088f4f6bad7c49b6be43a82af75c53f1a --- 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 15:53:26,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:53:26,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:53:26,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:53:26,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:53:26,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:53:26,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:53:26,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:53:26,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:53:26,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:53:26,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:53:26,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:53:26,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:53:26,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:53:26,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:53:26,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:53:26,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:53:26,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:53:26,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:53:26,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:53:26,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:53:26,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:53:26,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:53:26,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:53:26,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:53:26,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:53:26,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:53:26,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:53:26,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:53:26,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:53:26,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:53:26,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:53:26,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:53:26,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:53:26,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:53:26,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:53:26,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:53:26,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:53:26,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:53:26,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:53:26,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:53:26,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 15:53:26,781 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:53:26,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:53:26,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:53:26,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:53:26,782 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:53:26,782 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:53:26,782 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:53:26,783 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:53:26,783 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:53:26,783 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:53:26,783 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:53:26,783 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:53:26,783 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:53:26,783 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:53:26,783 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:53:26,784 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:53:26,784 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:53:26,784 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:53:26,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:53:26,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:53:26,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:53:26,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:53:26,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:53:26,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:53:26,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:53:26,785 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:53:26,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:53:26,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:53:26,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:53:26,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:53:26,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:53:26,786 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:53:26,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:53:26,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:53:26,786 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:53:26,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:53:26,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:53:26,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:53:26,787 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_ce0a22b0-441a-4e04-8d72-aca7715c4092/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f64b5393bce526ec4462abc83c64df9088f4f6bad7c49b6be43a82af75c53f1a [2022-12-14 15:53:26,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:53:26,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:53:26,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:53:26,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:53:26,995 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:53:26,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i [2022-12-14 15:53:29,648 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:53:30,045 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:53:30,045 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i [2022-12-14 15:53:30,069 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/data/82519d695/206fd58c6dca4f5cb518dddce3958680/FLAG1c64b0fb3 [2022-12-14 15:53:30,079 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/data/82519d695/206fd58c6dca4f5cb518dddce3958680 [2022-12-14 15:53:30,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:53:30,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:53:30,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:53:30,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:53:30,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:53:30,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:53:30" (1/1) ... [2022-12-14 15:53:30,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ed6369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:30, skipping insertion in model container [2022-12-14 15:53:30,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:53:30" (1/1) ... [2022-12-14 15:53:30,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:53:30,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:53:30,341 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_ce0a22b0-441a-4e04-8d72-aca7715c4092/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4497,4510] [2022-12-14 15:53:30,347 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_ce0a22b0-441a-4e04-8d72-aca7715c4092/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4557,4570] [2022-12-14 15:53:31,015 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,015 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,016 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,016 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,017 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,028 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,028 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,030 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,030 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,110 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:53:31,110 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:53:31,111 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:53:31,115 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 15:53:31,116 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 15:53:31,117 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 15:53:31,376 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 15:53:31,377 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 15:53:31,378 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 15:53:31,379 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 15:53:31,386 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 15:53:31,388 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 15:53:31,388 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 15:53:31,389 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 15:53:31,389 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 15:53:31,390 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 15:53:31,390 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 15:53:31,511 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 15:53:31,538 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 15:53:31,546 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:53:31,570 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:53:31,577 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,577 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,620 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 15:53:31,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:53:31,654 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:53:31,664 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_ce0a22b0-441a-4e04-8d72-aca7715c4092/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4497,4510] [2022-12-14 15:53:31,664 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_ce0a22b0-441a-4e04-8d72-aca7715c4092/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4557,4570] [2022-12-14 15:53:31,690 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,690 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,691 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,691 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,692 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,696 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,697 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,698 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,698 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,703 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:53:31,703 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:53:31,704 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 15:53:31,706 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 15:53:31,707 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 15:53:31,707 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 15:53:31,723 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 15:53:31,724 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 15:53:31,725 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 15:53:31,725 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 15:53:31,725 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 15:53:31,726 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 15:53:31,726 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 15:53:31,727 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 15:53:31,727 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 15:53:31,727 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 15:53:31,728 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 15:53:31,741 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 15:53:31,756 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 15:53:31,760 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:53:31,773 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:53:31,778 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,778 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 15:53:31,796 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 15:53:31,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:53:31,934 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:53:31,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31 WrapperNode [2022-12-14 15:53:31,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:53:31,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:53:31,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:53:31,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:53:31,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:31,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,033 INFO L138 Inliner]: procedures = 690, calls = 2630, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 956 [2022-12-14 15:53:32,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:53:32,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:53:32,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:53:32,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:53:32,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,076 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:53:32,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:53:32,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:53:32,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:53:32,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (1/1) ... [2022-12-14 15:53:32,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:53:32,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:53:32,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:53:32,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:53:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-12-14 15:53:32,145 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-12-14 15:53:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 15:53:32,145 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 15:53:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:53:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 15:53:32,145 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 15:53:32,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 15:53:32,146 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:53:32,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:53:32,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 15:53:32,146 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 15:53:32,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 15:53:32,147 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 15:53:32,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 15:53:32,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:53:32,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:53:32,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:53:32,147 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 15:53:32,147 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 15:53:32,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:53:32,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-12-14 15:53:32,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:53:32,355 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:53:32,357 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:53:33,326 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:53:33,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:53:33,467 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:53:33,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:53:33 BoogieIcfgContainer [2022-12-14 15:53:33,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:53:33,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:53:33,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:53:33,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:53:33,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:53:30" (1/3) ... [2022-12-14 15:53:33,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5d2e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:53:33, skipping insertion in model container [2022-12-14 15:53:33,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:53:31" (2/3) ... [2022-12-14 15:53:33,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5d2e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:53:33, skipping insertion in model container [2022-12-14 15:53:33,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:53:33" (3/3) ... [2022-12-14 15:53:33,477 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness_negated.i [2022-12-14 15:53:33,491 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:53:33,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:53:33,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:53:33,537 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;@42031383, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:53:33,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:53:33,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 50 states have (on average 1.2) internal successors, (60), 51 states have internal predecessors, (60), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-12-14 15:53:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 15:53:33,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:33,548 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 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 15:53:33,548 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:53:33,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:33,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1719814731, now seen corresponding path program 1 times [2022-12-14 15:53:33,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:33,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883268518] [2022-12-14 15:53:33,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:33,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:43,172 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-12-14 15:53:43,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:43,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883268518] [2022-12-14 15:53:43,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883268518] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:53:43,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914955254] [2022-12-14 15:53:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:43,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:53:43,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:53:43,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:53:43,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0a22b0-441a-4e04-8d72-aca7715c4092/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:53:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:43,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 2703 conjuncts, 107 conjunts are in the unsatisfiable core [2022-12-14 15:53:43,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:53:43,890 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 15:53:43,896 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 15:53:46,737 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:53:46,741 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:53:46,742 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 88 treesize of output 68 [2022-12-14 15:53:46,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:53:46,752 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:53:46,753 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 68 treesize of output 48 [2022-12-14 15:53:46,763 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:53:46,763 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 47 treesize of output 39 [2022-12-14 15:53:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 52 proven. 18 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-12-14 15:53:46,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:53:47,564 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2022-12-14 15:53:57,943 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.