./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/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_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/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_8d97131d-4938-4fa6-91b4-190ff26bf6b9/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 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 --- 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 05:15:44,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:15:44,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:15:44,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:15:44,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:15:44,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:15:44,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:15:44,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:15:44,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:15:44,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:15:44,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:15:44,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:15:44,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:15:44,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:15:44,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:15:44,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:15:44,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:15:44,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:15:44,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:15:44,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:15:44,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:15:44,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:15:44,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:15:44,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:15:44,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:15:44,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:15:44,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:15:44,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:15:44,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:15:44,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:15:44,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:15:44,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:15:44,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:15:44,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:15:44,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:15:44,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:15:44,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:15:44,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:15:44,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:15:44,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:15:44,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:15:44,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 05:15:44,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:15:44,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:15:44,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:15:44,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:15:44,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:15:44,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:15:44,303 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:15:44,303 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:15:44,303 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:15:44,303 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:15:44,303 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:15:44,303 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:15:44,303 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:15:44,304 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:15:44,304 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:15:44,304 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:15:44,304 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:15:44,304 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:15:44,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:15:44,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:15:44,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:15:44,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:15:44,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:15:44,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:15:44,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:15:44,305 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:15:44,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:15:44,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:15:44,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:15:44,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:15:44,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:15:44,306 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:15:44,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:15:44,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:15:44,306 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:15:44,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:15:44,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:15:44,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:15:44,307 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_8d97131d-4938-4fa6-91b4-190ff26bf6b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 [2022-12-14 05:15:44,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:15:44,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:15:44,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:15:44,498 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:15:44,499 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:15:44,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2022-12-14 05:15:47,042 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:15:47,371 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:15:47,372 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2022-12-14 05:15:47,392 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/data/af21cb677/7566d011c45e42819077a4e853831bae/FLAG097aff14e [2022-12-14 05:15:47,650 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/data/af21cb677/7566d011c45e42819077a4e853831bae [2022-12-14 05:15:47,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:15:47,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:15:47,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:15:47,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:15:47,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:15:47,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:15:47" (1/1) ... [2022-12-14 05:15:47,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355a44de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:47, skipping insertion in model container [2022-12-14 05:15:47,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:15:47" (1/1) ... [2022-12-14 05:15:47,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:15:47,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:15:48,002 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_8d97131d-4938-4fa6-91b4-190ff26bf6b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2022-12-14 05:15:48,007 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_8d97131d-4938-4fa6-91b4-190ff26bf6b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2022-12-14 05:15:48,564 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:48,568 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:48,568 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:48,569 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:48,569 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:48,570 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:48,572 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:48,580 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:48,581 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:48,581 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:48,582 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:48,583 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:48,650 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:15:48,650 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:15:48,651 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:15:48,654 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 05:15:48,656 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 05:15:48,656 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 05:15:48,881 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 05:15:48,881 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 05:15:48,882 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 05:15:48,883 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 05:15:48,884 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 05:15:48,885 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 05:15:48,885 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 05:15:48,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 05:15:48,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 05:15:48,887 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 05:15:48,887 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 05:15:49,012 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 05:15:49,029 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,029 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,036 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,041 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,044 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 05:15:49,050 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 05:15:49,056 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,060 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,060 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,061 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,069 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 05:15:49,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,078 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,083 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,114 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 05:15:49,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:15:49,146 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:15:49,155 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_8d97131d-4938-4fa6-91b4-190ff26bf6b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2022-12-14 05:15:49,156 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_8d97131d-4938-4fa6-91b4-190ff26bf6b9/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2022-12-14 05:15:49,186 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,188 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,188 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,188 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,188 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,189 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,190 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,194 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,194 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,194 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,195 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,195 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,199 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:15:49,200 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:15:49,200 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 05:15:49,202 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 05:15:49,203 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 05:15:49,203 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 05:15:49,216 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 05:15:49,216 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 05:15:49,217 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 05:15:49,217 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 05:15:49,218 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 05:15:49,218 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 05:15:49,218 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 05:15:49,219 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 05:15:49,219 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 05:15:49,219 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 05:15:49,220 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 05:15:49,232 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 05:15:49,240 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,241 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,242 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,246 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,248 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-14 05:15:49,252 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 05:15:49,256 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,259 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,259 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,259 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,264 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 05:15:49,268 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,268 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 05:15:49,271 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,276 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 05:15:49,289 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 05:15:49,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:15:49,436 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:15:49,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49 WrapperNode [2022-12-14 05:15:49,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:15:49,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:15:49,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:15:49,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:15:49,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,541 INFO L138 Inliner]: procedures = 691, calls = 2645, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 958 [2022-12-14 05:15:49,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:15:49,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:15:49,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:15:49,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:15:49,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:15:49,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:15:49,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:15:49,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:15:49,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (1/1) ... [2022-12-14 05:15:49,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:15:49,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:49,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:15:49,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:15:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-12-14 05:15:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-12-14 05:15:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-14 05:15:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-14 05:15:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:15:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 05:15:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 05:15:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:15:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 05:15:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 05:15:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 05:15:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 05:15:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:15:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:15:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:15:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:15:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:15:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 05:15:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 05:15:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 05:15:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 05:15:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:15:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-12-14 05:15:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-12-14 05:15:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:15:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 05:15:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 05:15:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 05:15:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-12-14 05:15:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-12-14 05:15:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2022-12-14 05:15:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2022-12-14 05:15:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-14 05:15:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-14 05:15:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:15:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:15:49,858 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:15:49,859 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:15:50,697 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:15:50,914 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:15:50,915 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 05:15:50,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:15:50 BoogieIcfgContainer [2022-12-14 05:15:50,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:15:50,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:15:50,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:15:50,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:15:50,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:15:47" (1/3) ... [2022-12-14 05:15:50,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af446ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:15:50, skipping insertion in model container [2022-12-14 05:15:50,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:15:49" (2/3) ... [2022-12-14 05:15:50,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af446ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:15:50, skipping insertion in model container [2022-12-14 05:15:50,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:15:50" (3/3) ... [2022-12-14 05:15:50,924 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2022-12-14 05:15:50,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:15:50,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:15:50,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:15:50,980 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;@1867dca5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:15:50,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:15:50,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-12-14 05:15:50,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 05:15:50,991 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:15:50,991 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 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] [2022-12-14 05:15:50,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:15:50,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:15:50,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1053724324, now seen corresponding path program 1 times [2022-12-14 05:15:51,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:15:51,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69835182] [2022-12-14 05:15:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:51,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:15:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:56,468 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-14 05:15:56,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:15:56,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69835182] [2022-12-14 05:15:56,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69835182] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:15:56,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229596677] [2022-12-14 05:15:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:15:56,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:15:56,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:15:56,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:15:56,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d97131d-4938-4fa6-91b4-190ff26bf6b9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:15:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:15:56,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 2629 conjuncts, 71 conjunts are in the unsatisfiable core [2022-12-14 05:15:57,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:15:57,222 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 05:15:57,229 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 05:15:58,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:15:58,524 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:15:58,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2022-12-14 05:15:58,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:15:58,534 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:15:58,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 7 [2022-12-14 05:15:58,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-12-14 05:15:58,903 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 05:15:58,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:15:59,832 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 13430 disjunctions. This might take some time... [2022-12-14 05:16:09,824 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.