./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur --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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- 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-38b53e6 [2022-11-25 23:18:51,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:18:51,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:18:51,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:18:51,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:18:51,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:18:51,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:18:51,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:18:51,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:18:51,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:18:51,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:18:51,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:18:51,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:18:51,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:18:51,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:18:51,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:18:51,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:18:51,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:18:51,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:18:51,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:18:52,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:18:52,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:18:52,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:18:52,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:18:52,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:18:52,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:18:52,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:18:52,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:18:52,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:18:52,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:18:52,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:18:52,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:18:52,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:18:52,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:18:52,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:18:52,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:18:52,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:18:52,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:18:52,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:18:52,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:18:52,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:18:52,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:18:52,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:18:52,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:18:52,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:18:52,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:18:52,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:18:52,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:18:52,092 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:18:52,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:18:52,093 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:18:52,093 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:18:52,094 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:18:52,094 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:18:52,094 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:18:52,095 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:18:52,095 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:18:52,095 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:18:52,095 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:18:52,095 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:18:52,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:18:52,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:18:52,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:18:52,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:18:52,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:18:52,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:18:52,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:18:52,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:18:52,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:18:52,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:18:52,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:18:52,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:18:52,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:18:52,099 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:18:52,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:18:52,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:18:52,100 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:18:52,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:18:52,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:18:52,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:18:52,100 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_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2022-11-25 23:18:52,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:18:52,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:18:52,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:18:52,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:18:52,466 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:18:52,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2022-11-25 23:18:55,463 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:18:56,080 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:18:56,081 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2022-11-25 23:18:56,157 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/data/3ddc44596/dc7617896f6345808521a3d4857fa899/FLAG7780a671c [2022-11-25 23:18:56,175 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/data/3ddc44596/dc7617896f6345808521a3d4857fa899 [2022-11-25 23:18:56,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:18:56,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:18:56,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:18:56,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:18:56,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:18:56,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:18:56" (1/1) ... [2022-11-25 23:18:56,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27fedb0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:56, skipping insertion in model container [2022-11-25 23:18:56,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:18:56" (1/1) ... [2022-11-25 23:18:56,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:18:56,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:18:56,541 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_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2022-11-25 23:18:56,549 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_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2022-11-25 23:18:57,603 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:57,620 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:57,622 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:57,625 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:57,627 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:57,629 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:57,641 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:57,654 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:57,655 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:57,655 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:57,658 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:57,658 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:57,757 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:18:57,757 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:18:57,758 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:18:57,774 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 23:18:57,782 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 23:18:57,782 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 23:18:58,215 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 23:18:58,218 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 23:18:58,220 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 23:18:58,222 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 23:18:58,225 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 23:18:58,230 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 23:18:58,231 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 23:18:58,234 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 23:18:58,237 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 23:18:58,240 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 23:18:58,242 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 23:18:58,447 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 23:18:58,484 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,495 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,499 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-25 23:18:58,511 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:18:58,523 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,530 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,531 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,532 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,546 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:18:58,556 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,556 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,562 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,572 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,620 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:18:58,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:18:58,672 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:18:58,690 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_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2022-11-25 23:18:58,691 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_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2022-11-25 23:18:58,728 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,731 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,731 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,732 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,732 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,733 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,735 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,778 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,778 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,778 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,779 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,780 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,787 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:18:58,795 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:18:58,795 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 23:18:58,799 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 23:18:58,800 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 23:18:58,801 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 23:18:58,822 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 23:18:58,823 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 23:18:58,824 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 23:18:58,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 23:18:58,825 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 23:18:58,826 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 23:18:58,827 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 23:18:58,827 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 23:18:58,828 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 23:18:58,828 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 23:18:58,829 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 23:18:58,848 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 23:18:58,869 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,883 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,890 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-25 23:18:58,900 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:18:58,912 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,918 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,919 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,921 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,928 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 23:18:58,944 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,944 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 23:18:58,950 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,958 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 23:18:58,992 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 23:18:58,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:18:59,285 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:18:59,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59 WrapperNode [2022-11-25 23:18:59,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:18:59,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:18:59,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:18:59,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:18:59,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,495 INFO L138 Inliner]: procedures = 691, calls = 2618, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 855 [2022-11-25 23:18:59,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:18:59,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:18:59,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:18:59,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:18:59,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,577 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:18:59,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:18:59,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:18:59,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:18:59,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (1/1) ... [2022-11-25 23:18:59,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:18:59,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:18:59,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:18:59,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:18:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-25 23:18:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-25 23:18:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:18:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 23:18:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 23:18:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:18:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 23:18:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 23:18:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:18:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:18:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:18:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-25 23:18:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-25 23:18:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:18:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:18:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 23:18:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 23:18:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-25 23:18:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-25 23:18:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 23:18:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 23:18:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-25 23:18:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-25 23:18:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:18:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:18:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2022-11-25 23:18:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2022-11-25 23:18:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:18:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 23:18:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 23:18:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:18:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:19:00,116 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:19:00,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:19:01,720 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:19:02,095 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:19:02,096 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:19:02,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:02 BoogieIcfgContainer [2022-11-25 23:19:02,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:19:02,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:19:02,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:19:02,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:19:02,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:18:56" (1/3) ... [2022-11-25 23:19:02,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47072cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:19:02, skipping insertion in model container [2022-11-25 23:19:02,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:18:59" (2/3) ... [2022-11-25 23:19:02,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47072cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:19:02, skipping insertion in model container [2022-11-25 23:19:02,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:02" (3/3) ... [2022-11-25 23:19:02,112 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2022-11-25 23:19:02,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:19:02,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:19:02,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:19:02,215 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;@66909ed6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:19:02,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:19:02,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-25 23:19:02,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 23:19:02,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:02,232 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 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] [2022-11-25 23:19:02,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:19:02,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:02,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1762663939, now seen corresponding path program 1 times [2022-11-25 23:19:02,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:02,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706313660] [2022-11-25 23:19:02,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:02,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 23:19:27,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:19:27,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706313660] [2022-11-25 23:19:27,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706313660] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:19:27,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601343279] [2022-11-25 23:19:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:27,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:19:27,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:27,226 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:19:27,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e4bd429-154b-4de2-a670-f1ee4b9f81d8/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:19:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:27,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 2582 conjuncts, 145 conjunts are in the unsatisfiable core [2022-11-25 23:19:28,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:28,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:19:28,524 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 [2022-11-25 23:19:32,391 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 23:19:32,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-11-25 23:19:32,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2022-11-25 23:19:54,603 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 23:19:54,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:19:57,285 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time... [2022-11-25 23:27:39,328 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 76449 disjunctions.