./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 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_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/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_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/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_9b1e24aa-fff8-4799-9281-f057df435ae4/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_9b1e24aa-fff8-4799-9281-f057df435ae4/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 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-38b53e6 [2022-11-26 00:54:07,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:54:07,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:54:07,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:54:07,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:54:07,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:54:07,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:54:07,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:54:07,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:54:07,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:54:07,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:54:07,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:54:07,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:54:07,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:54:07,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:54:07,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:54:07,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:54:07,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:54:07,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:54:07,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:54:07,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:54:07,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:54:07,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:54:07,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:54:07,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:54:07,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:54:07,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:54:07,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:54:07,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:54:07,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:54:07,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:54:07,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:54:07,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:54:07,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:54:07,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:54:07,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:54:07,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:54:07,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:54:07,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:54:07,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:54:07,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:54:07,123 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:54:07,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:54:07,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:54:07,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:54:07,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:54:07,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:54:07,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:54:07,164 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:54:07,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:54:07,165 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:54:07,165 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:54:07,166 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:54:07,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:54:07,166 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:54:07,166 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:54:07,167 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:54:07,167 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:54:07,167 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:54:07,167 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:54:07,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:54:07,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:54:07,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:54:07,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:54:07,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:54:07,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:54:07,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:54:07,169 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:54:07,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:54:07,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:54:07,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:54:07,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:54:07,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:54:07,171 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:54:07,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:54:07,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:54:07,172 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:54:07,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:54:07,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:54:07,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:54:07,173 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_9b1e24aa-fff8-4799-9281-f057df435ae4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 [2022-11-26 00:54:07,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:54:07,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:54:07,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:54:07,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:54:07,493 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:54:07,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2022-11-26 00:54:10,717 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:54:11,416 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:54:11,416 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2022-11-26 00:54:11,461 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/data/7bf0dcb4c/1c72d101e80541b790260c2a1181c035/FLAG0a244ca80 [2022-11-26 00:54:11,484 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/data/7bf0dcb4c/1c72d101e80541b790260c2a1181c035 [2022-11-26 00:54:11,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:54:11,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:54:11,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:54:11,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:54:11,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:54:11,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:54:11" (1/1) ... [2022-11-26 00:54:11,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7f84cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:11, skipping insertion in model container [2022-11-26 00:54:11,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:54:11" (1/1) ... [2022-11-26 00:54:11,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:54:11,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:54:11,896 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_9b1e24aa-fff8-4799-9281-f057df435ae4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2022-11-26 00:54:11,904 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_9b1e24aa-fff8-4799-9281-f057df435ae4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2022-11-26 00:54:13,113 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:13,119 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:13,120 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:13,121 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:13,122 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:13,124 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:13,136 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:13,152 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:13,153 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:13,153 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:13,155 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:13,156 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:13,292 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:54:13,293 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:54:13,295 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:54:13,315 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:54:13,318 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:54:13,320 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:54:13,780 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:54:13,782 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:54:13,783 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:54:13,785 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:54:13,786 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:54:13,788 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:54:13,789 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:54:13,790 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:54:13,791 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:54:13,792 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:54:13,793 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:54:14,072 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:54:14,121 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,129 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,142 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,175 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,182 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:54:14,207 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:54:14,223 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,248 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,249 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,250 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,270 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:54:14,297 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,298 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,313 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,333 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,421 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:54:14,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:54:14,513 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:54:14,546 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_9b1e24aa-fff8-4799-9281-f057df435ae4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2022-11-26 00:54:14,547 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_9b1e24aa-fff8-4799-9281-f057df435ae4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2022-11-26 00:54:14,592 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,594 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,595 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,595 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,596 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,596 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,598 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,607 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,608 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,608 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,609 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,610 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,622 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:54:14,623 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:54:14,624 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-26 00:54:14,630 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-26 00:54:14,633 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-26 00:54:14,634 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-26 00:54:14,664 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-26 00:54:14,665 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-26 00:54:14,666 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-26 00:54:14,667 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-26 00:54:14,668 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-26 00:54:14,669 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-26 00:54:14,670 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-26 00:54:14,671 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-26 00:54:14,672 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-26 00:54:14,673 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-26 00:54:14,680 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-26 00:54:14,706 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-26 00:54:14,727 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,728 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,732 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,739 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,745 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-11-26 00:54:14,754 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:54:14,761 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,765 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,766 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,768 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,775 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:54:14,790 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,791 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-26 00:54:14,796 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,802 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-26 00:54:14,829 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:54:14,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:54:15,165 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:54:15,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15 WrapperNode [2022-11-26 00:54:15,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:54:15,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:54:15,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:54:15,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:54:15,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,402 INFO L138 Inliner]: procedures = 691, calls = 2645, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 958 [2022-11-26 00:54:15,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:54:15,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:54:15,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:54:15,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:54:15,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,532 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:54:15,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:54:15,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:54:15,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:54:15,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (1/1) ... [2022-11-26 00:54:15,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:54:15,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:54:15,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:54:15,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:54:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-26 00:54:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-26 00:54:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-26 00:54:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-26 00:54:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:54:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-26 00:54:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-26 00:54:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:54:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-26 00:54:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-26 00:54:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:54:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:54:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:54:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:54:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:54:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:54:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:54:15,652 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-26 00:54:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-26 00:54:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:54:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:54:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:54:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-26 00:54:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-26 00:54:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:54:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:54:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-26 00:54:15,660 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-26 00:54:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-26 00:54:15,660 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-26 00:54:15,660 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2022-11-26 00:54:15,661 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2022-11-26 00:54:15,661 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-26 00:54:15,661 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-26 00:54:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:54:15,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:54:16,055 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:54:16,057 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:54:17,647 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:54:18,111 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:54:18,111 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:54:18,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:54:18 BoogieIcfgContainer [2022-11-26 00:54:18,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:54:18,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:54:18,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:54:18,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:54:18,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:54:11" (1/3) ... [2022-11-26 00:54:18,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d91081d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:54:18, skipping insertion in model container [2022-11-26 00:54:18,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:54:15" (2/3) ... [2022-11-26 00:54:18,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d91081d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:54:18, skipping insertion in model container [2022-11-26 00:54:18,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:54:18" (3/3) ... [2022-11-26 00:54:18,130 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2022-11-26 00:54:18,151 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:54:18,152 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:54:18,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:54:18,246 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;@5525d2bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:54:18,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:54:18,251 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) [2022-11-26 00:54:18,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-26 00:54:18,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:18,264 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] [2022-11-26 00:54:18,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:54:18,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:18,275 INFO L85 PathProgramCache]: Analyzing trace with hash -2063670608, now seen corresponding path program 1 times [2022-11-26 00:54:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:18,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296255625] [2022-11-26 00:54:18,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:18,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:27,698 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-26 00:54:27,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:27,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296255625] [2022-11-26 00:54:27,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296255625] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:54:27,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659130186] [2022-11-26 00:54:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:27,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:54:27,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:54:27,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:54:27,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b1e24aa-fff8-4799-9281-f057df435ae4/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:54:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:28,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2629 conjuncts, 72 conjunts are in the unsatisfiable core [2022-11-26 00:54:28,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:54:29,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-26 00:54:29,045 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 [2022-11-26 00:54:29,055 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 [2022-11-26 00:54:31,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:31,363 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-26 00:54:31,363 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 [2022-11-26 00:54:31,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:54:31,377 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-26 00:54:31,379 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 [2022-11-26 00:54:31,954 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 [2022-11-26 00:54:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 14 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-26 00:54:32,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:54:33,653 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14202 disjunctions. This might take some time... [2022-11-26 00:54:49,267 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 13413 disjunctions.