./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7 --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 2e74061603d1466b037b305bab04ccfaa41041189a61fef40533e07a2fdf1d25 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:33:10,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:33:10,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:33:10,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:33:10,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:33:10,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:33:10,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:33:10,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:33:10,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:33:10,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:33:10,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:33:10,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:33:10,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:33:10,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:33:10,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:33:10,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:33:10,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:33:10,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:33:10,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:33:10,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:33:10,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:33:10,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:33:10,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:33:10,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:33:10,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:33:10,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:33:10,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:33:10,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:33:10,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:33:10,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:33:10,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:33:10,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:33:10,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:33:10,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:33:10,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:33:10,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:33:10,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:33:10,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:33:10,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:33:10,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:33:10,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:33:10,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:33:10,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:33:10,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:33:10,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:33:10,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:33:10,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:33:10,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:33:10,229 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:33:10,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:33:10,230 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:33:10,230 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:33:10,231 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:33:10,231 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:33:10,232 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:33:10,232 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:33:10,232 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:33:10,232 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:33:10,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:33:10,233 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:33:10,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:33:10,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:33:10,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:33:10,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:33:10,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:33:10,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:33:10,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:33:10,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:33:10,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:33:10,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:33:10,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:33:10,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:33:10,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:33:10,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:33:10,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:33:10,239 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:33:10,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:33:10,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:33:10,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:33:10,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:33:10,240 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e74061603d1466b037b305bab04ccfaa41041189a61fef40533e07a2fdf1d25 [2021-11-25 20:33:10,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:33:10,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:33:10,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:33:10,501 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:33:10,504 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:33:10,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2021-11-25 20:33:10,564 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/data/7399f5328/28a3f9655d9644cf9de20da9bea2147f/FLAGe9a1e533b [2021-11-25 20:33:11,380 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:33:11,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i [2021-11-25 20:33:11,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/data/7399f5328/28a3f9655d9644cf9de20da9bea2147f/FLAGe9a1e533b [2021-11-25 20:33:11,890 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/data/7399f5328/28a3f9655d9644cf9de20da9bea2147f [2021-11-25 20:33:11,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:33:11,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:33:11,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:33:11,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:33:11,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:33:11,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:33:11" (1/1) ... [2021-11-25 20:33:11,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e034de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:11, skipping insertion in model container [2021-11-25 20:33:11,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:33:11" (1/1) ... [2021-11-25 20:33:11,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:33:12,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:33:12,340 WARN L230 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_15d19fd6-8cca-459b-ba1e-828010889145/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2021-11-25 20:33:12,348 WARN L230 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_15d19fd6-8cca-459b-ba1e-828010889145/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2021-11-25 20:33:13,196 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,197 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,197 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,198 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,199 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,215 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,216 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,218 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,219 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,595 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 20:33:13,597 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 20:33:13,598 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 20:33:13,599 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 20:33:13,601 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 20:33:13,601 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 20:33:13,602 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 20:33:13,609 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 20:33:13,609 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 20:33:13,610 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 20:33:13,772 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 20:33:13,856 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,856 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:13,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:33:13,979 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:33:14,007 WARN L230 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_15d19fd6-8cca-459b-ba1e-828010889145/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4503,4516] [2021-11-25 20:33:14,009 WARN L230 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_15d19fd6-8cca-459b-ba1e-828010889145/sv-benchmarks/c/aws-c-common/aws_byte_buf_from_empty_array_harness.i[4563,4576] [2021-11-25 20:33:14,102 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,103 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,104 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,104 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,105 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,121 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,124 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,125 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,128 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,193 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-25 20:33:14,194 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-25 20:33:14,194 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-25 20:33:14,195 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-25 20:33:14,196 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-25 20:33:14,196 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-25 20:33:14,197 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-25 20:33:14,197 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-25 20:33:14,198 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-25 20:33:14,210 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-25 20:33:14,239 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-25 20:33:14,315 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,316 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-25 20:33:14,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:33:14,599 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:33:14,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14 WrapperNode [2021-11-25 20:33:14,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:33:14,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:33:14,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:33:14,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:33:14,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,856 INFO L137 Inliner]: procedures = 690, calls = 2614, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 794 [2021-11-25 20:33:14,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:33:14,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:33:14,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:33:14,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:33:14,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:33:14,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:33:14,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:33:14,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:33:14,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (1/1) ... [2021-11-25 20:33:14,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:33:14,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:14,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:33:15,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:33:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-25 20:33:15,036 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-25 20:33:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:33:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:33:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:33:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:33:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:33:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:33:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:33:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:33:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:33:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-25 20:33:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-25 20:33:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 20:33:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 20:33:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:33:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:33:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:33:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-25 20:33:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-25 20:33:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:33:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:33:15,298 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:33:15,317 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:33:16,726 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:33:16,914 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:33:16,914 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:33:16,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:33:16 BoogieIcfgContainer [2021-11-25 20:33:16,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:33:16,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:33:16,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:33:16,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:33:16,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:33:11" (1/3) ... [2021-11-25 20:33:16,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28250e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:33:16, skipping insertion in model container [2021-11-25 20:33:16,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:14" (2/3) ... [2021-11-25 20:33:16,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28250e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:33:16, skipping insertion in model container [2021-11-25 20:33:16,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:33:16" (3/3) ... [2021-11-25 20:33:16,925 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_from_empty_array_harness.i [2021-11-25 20:33:16,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:33:16,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:33:16,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:33:17,004 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:33:17,007 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:33:17,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 20:33:17,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 20:33:17,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:17,030 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:17,030 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:33:17,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1115662946, now seen corresponding path program 1 times [2021-11-25 20:33:17,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:33:17,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146134938] [2021-11-25 20:33:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:17,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:33:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:33:19,493 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:33:19,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146134938] [2021-11-25 20:33:19,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146134938] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:33:19,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466036914] [2021-11-25 20:33:19,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:19,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:19,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:19,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:19,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:33:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:20,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 2385 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-25 20:33:20,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:20,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2021-11-25 20:33:20,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2021-11-25 20:33:20,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:20,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2021-11-25 20:33:24,046 INFO L354 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-11-25 20:33:24,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 244 treesize of output 196 [2021-11-25 20:33:24,075 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:33:24,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 139 treesize of output 127 [2021-11-25 20:33:24,090 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:33:24,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 119 treesize of output 99 [2021-11-25 20:33:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:33:24,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:24,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466036914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:24,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:33:24,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 22 [2021-11-25 20:33:24,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733742777] [2021-11-25 20:33:24,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:24,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-25 20:33:24,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:24,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-25 20:33:24,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-11-25 20:33:24,284 INFO L87 Difference]: Start difference. First operand has 45 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 4 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-25 20:33:24,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:24,632 INFO L93 Difference]: Finished difference Result 88 states and 111 transitions. [2021-11-25 20:33:24,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:33:24,635 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 4 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 20 [2021-11-25 20:33:24,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:24,642 INFO L225 Difference]: With dead ends: 88 [2021-11-25 20:33:24,642 INFO L226 Difference]: Without dead ends: 50 [2021-11-25 20:33:24,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-11-25 20:33:24,648 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:24,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 326 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 46 Unchecked, 0.2s Time] [2021-11-25 20:33:24,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-25 20:33:24,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2021-11-25 20:33:24,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 20:33:24,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2021-11-25 20:33:24,689 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 20 [2021-11-25 20:33:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:24,689 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2021-11-25 20:33:24,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 4 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-25 20:33:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2021-11-25 20:33:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 20:33:24,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:24,692 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:24,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:24,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:24,905 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:33:24,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:24,905 INFO L85 PathProgramCache]: Analyzing trace with hash 786934760, now seen corresponding path program 1 times [2021-11-25 20:33:24,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:33:24,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422036588] [2021-11-25 20:33:24,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:24,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:33:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:33:26,334 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:33:26,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422036588] [2021-11-25 20:33:26,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422036588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:26,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:26,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-25 20:33:26,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780694110] [2021-11-25 20:33:26,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:26,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:33:26,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:26,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:33:26,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:33:26,337 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 10 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-25 20:33:26,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:26,742 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2021-11-25 20:33:26,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:33:26,742 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 29 [2021-11-25 20:33:26,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:26,744 INFO L225 Difference]: With dead ends: 55 [2021-11-25 20:33:26,744 INFO L226 Difference]: Without dead ends: 53 [2021-11-25 20:33:26,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:33:26,746 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 21 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:26,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 199 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 20:33:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-25 20:33:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-25 20:33:26,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 30 states have internal predecessors, (30), 14 states have call successors, (14), 9 states have call predecessors, (14), 9 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 20:33:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2021-11-25 20:33:26,758 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 29 [2021-11-25 20:33:26,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:26,758 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2021-11-25 20:33:26,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 6 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2021-11-25 20:33:26,759 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2021-11-25 20:33:26,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 20:33:26,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:26,760 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:26,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:33:26,760 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:33:26,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:26,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2134103610, now seen corresponding path program 1 times [2021-11-25 20:33:26,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:33:26,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502271498] [2021-11-25 20:33:26,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:26,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:33:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:27,023 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 20:33:27,024 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:33:27,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502271498] [2021-11-25 20:33:27,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502271498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:27,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:27,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 20:33:27,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909615952] [2021-11-25 20:33:27,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:27,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:33:27,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:27,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:33:27,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:33:27,030 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-25 20:33:27,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:27,268 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2021-11-25 20:33:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:33:27,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 35 [2021-11-25 20:33:27,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:27,273 INFO L225 Difference]: With dead ends: 59 [2021-11-25 20:33:27,273 INFO L226 Difference]: Without dead ends: 57 [2021-11-25 20:33:27,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:33:27,275 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 12 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:27,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 159 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:33:27,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-25 20:33:27,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-25 20:33:27,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 32 states have (on average 1.03125) internal successors, (33), 33 states have internal predecessors, (33), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 20:33:27,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2021-11-25 20:33:27,293 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 35 [2021-11-25 20:33:27,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:27,294 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2021-11-25 20:33:27,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-25 20:33:27,294 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2021-11-25 20:33:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 20:33:27,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:27,296 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 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] [2021-11-25 20:33:27,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:33:27,297 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:33:27,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:27,298 INFO L85 PathProgramCache]: Analyzing trace with hash 561923082, now seen corresponding path program 1 times [2021-11-25 20:33:27,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:33:27,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213172360] [2021-11-25 20:33:27,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:27,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:33:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:27,904 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 20:33:27,904 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:33:27,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213172360] [2021-11-25 20:33:27,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213172360] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:33:27,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089368636] [2021-11-25 20:33:27,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:27,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:27,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:27,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:27,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:33:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:28,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2459 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-25 20:33:28,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:28,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:28,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:28,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:28,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2021-11-25 20:33:28,702 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-25 20:33:28,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 10 [2021-11-25 20:33:28,764 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 20:33:28,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:28,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089368636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:28,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:33:28,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 21 [2021-11-25 20:33:28,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346706436] [2021-11-25 20:33:28,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:28,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:33:28,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:28,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:33:28,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2021-11-25 20:33:28,767 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand has 12 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 5 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-25 20:33:29,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:29,113 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-11-25 20:33:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 20:33:29,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 5 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 41 [2021-11-25 20:33:29,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:29,115 INFO L225 Difference]: With dead ends: 64 [2021-11-25 20:33:29,115 INFO L226 Difference]: Without dead ends: 62 [2021-11-25 20:33:29,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-11-25 20:33:29,116 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:29,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 334 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 0 Unknown, 40 Unchecked, 0.3s Time] [2021-11-25 20:33:29,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-25 20:33:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-11-25 20:33:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 36 states have internal predecessors, (36), 14 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 20:33:29,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2021-11-25 20:33:29,127 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 41 [2021-11-25 20:33:29,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:29,127 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2021-11-25 20:33:29,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 5 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-25 20:33:29,128 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2021-11-25 20:33:29,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 20:33:29,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:29,130 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 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] [2021-11-25 20:33:29,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:29,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:29,339 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:33:29,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:29,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1780080344, now seen corresponding path program 1 times [2021-11-25 20:33:29,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:33:29,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011552913] [2021-11-25 20:33:29,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:29,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:33:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-25 20:33:29,622 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:33:29,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011552913] [2021-11-25 20:33:29,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011552913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:29,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:29,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 20:33:29,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696475777] [2021-11-25 20:33:29,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:29,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:33:29,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:29,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:33:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:33:29,625 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-25 20:33:29,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:29,867 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2021-11-25 20:33:29,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:33:29,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 47 [2021-11-25 20:33:29,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:29,869 INFO L225 Difference]: With dead ends: 67 [2021-11-25 20:33:29,869 INFO L226 Difference]: Without dead ends: 65 [2021-11-25 20:33:29,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:33:29,871 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 10 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:29,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 164 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:33:29,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-25 20:33:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-25 20:33:29,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 39 states have internal predecessors, (39), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 20:33:29,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2021-11-25 20:33:29,895 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 47 [2021-11-25 20:33:29,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:29,896 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2021-11-25 20:33:29,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-25 20:33:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2021-11-25 20:33:29,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-25 20:33:29,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:29,902 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 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] [2021-11-25 20:33:29,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:33:29,905 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:33:29,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:29,906 INFO L85 PathProgramCache]: Analyzing trace with hash 851326817, now seen corresponding path program 1 times [2021-11-25 20:33:29,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:33:29,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925007490] [2021-11-25 20:33:29,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:29,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:33:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:30,449 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-25 20:33:30,450 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:33:30,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925007490] [2021-11-25 20:33:30,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925007490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:30,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:30,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-25 20:33:30,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384955856] [2021-11-25 20:33:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:30,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:33:30,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:30,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:33:30,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:33:30,453 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand has 9 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 20:33:30,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:30,713 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2021-11-25 20:33:30,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:33:30,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2021-11-25 20:33:30,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:30,715 INFO L225 Difference]: With dead ends: 71 [2021-11-25 20:33:30,715 INFO L226 Difference]: Without dead ends: 67 [2021-11-25 20:33:30,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:33:30,716 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 12 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:30,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 258 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:33:30,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-25 20:33:30,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-11-25 20:33:30,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 40 states have (on average 1.0) internal successors, (40), 40 states have internal predecessors, (40), 14 states have call successors, (14), 13 states have call predecessors, (14), 12 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 20:33:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2021-11-25 20:33:30,729 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 54 [2021-11-25 20:33:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:30,729 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2021-11-25 20:33:30,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 20:33:30,730 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2021-11-25 20:33:30,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-25 20:33:30,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:30,731 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 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] [2021-11-25 20:33:30,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:33:30,732 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:33:30,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:30,732 INFO L85 PathProgramCache]: Analyzing trace with hash 180082274, now seen corresponding path program 1 times [2021-11-25 20:33:30,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:33:30,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403616312] [2021-11-25 20:33:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:30,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:33:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-11-25 20:33:32,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:33:32,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403616312] [2021-11-25 20:33:32,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403616312] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:32,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:32,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-25 20:33:32,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83179821] [2021-11-25 20:33:32,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:32,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:33:32,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:32,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:33:32,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:33:32,899 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand has 12 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 7 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2021-11-25 20:33:33,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:33,359 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2021-11-25 20:33:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 20:33:33,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 7 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 68 [2021-11-25 20:33:33,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:33,360 INFO L225 Difference]: With dead ends: 67 [2021-11-25 20:33:33,360 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 20:33:33,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-11-25 20:33:33,361 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 18 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:33,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 248 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 20:33:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 20:33:33,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 20:33:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 20:33:33,363 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2021-11-25 20:33:33,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:33,363 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 20:33:33,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 7 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2021-11-25 20:33:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 20:33:33,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 20:33:33,366 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 20:33:33,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:33:33,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 20:33:34,449 INFO L861 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: true [2021-11-25 20:33:34,450 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-11-25 20:33:34,450 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-11-25 20:33:34,450 INFO L854 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (or (= |bounded_malloc_#in~size| bounded_malloc_~size) (not (< 0 |#StackHeapBarrier|))) [2021-11-25 20:33:34,450 INFO L861 garLoopResultBuilder]: At program point aws_byte_buf_is_validENTRY(lines 7375 7381) the Hoare annotation is: true [2021-11-25 20:33:34,450 INFO L858 garLoopResultBuilder]: For program point aws_byte_buf_is_validEXIT(lines 7375 7381) no Hoare annotation was computed. [2021-11-25 20:33:34,451 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-11-25 20:33:34,451 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-11-25 20:33:34,451 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-11-25 20:33:34,451 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-11-25 20:33:34,451 INFO L858 garLoopResultBuilder]: For program point L8219-1(line 8219) no Hoare annotation was computed. [2021-11-25 20:33:34,451 INFO L854 garLoopResultBuilder]: At program point L8219(line 8219) the Hoare annotation is: (and (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| 0)) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~capacity#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0) (< 0 |#StackHeapBarrier|)) [2021-11-25 20:33:34,452 INFO L858 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2021-11-25 20:33:34,452 INFO L854 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: (let ((.cse5 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse3 (select .cse5 .cse2))) (let ((.cse4 (= .cse3 0)) (.cse0 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse6 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= (select .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|) 0) (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base| 0)) (= (select .cse1 .cse2) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (or (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse4) (= (select .cse5 .cse6) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (or .cse4 (let ((.cse7 (select .cse0 (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|)))) (<= .cse7 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse7) 18446744073709551616)))))) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= 0 (select .cse1 .cse6)) (not (= |ULTIMATE.start_assert_bytes_match_~a#1.base| 0)) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,452 INFO L854 garLoopResultBuilder]: At program point L8963(line 8963) the Hoare annotation is: (< 0 |#StackHeapBarrier|) [2021-11-25 20:33:34,452 INFO L858 garLoopResultBuilder]: For program point L8963-1(line 8963) no Hoare annotation was computed. [2021-11-25 20:33:34,453 INFO L854 garLoopResultBuilder]: At program point L8967(line 8967) the Hoare annotation is: (let ((.cse6 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse4 (select .cse6 .cse2))) (let ((.cse5 (= .cse4 0)) (.cse0 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse7 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= (select .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base| 0)) (= (select .cse1 .cse2) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_16| Int)) (let ((.cse3 (select (select |#memory_int| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_16|) 16))) (and (= .cse3 (select (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|) (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|))) (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|)))) (or (= .cse4 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse5) (= (select .cse6 .cse7) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (or .cse5 (let ((.cse8 (select .cse0 (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|)))) (<= .cse8 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse8) 18446744073709551616)))))) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1211#1| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= 0 (select .cse1 .cse7)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,453 INFO L858 garLoopResultBuilder]: For program point L8967-1(line 8967) no Hoare annotation was computed. [2021-11-25 20:33:34,453 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 20:33:34,453 INFO L858 garLoopResultBuilder]: For program point L8972(lines 8972 8974) no Hoare annotation was computed. [2021-11-25 20:33:34,453 INFO L861 garLoopResultBuilder]: At program point L8972-2(lines 8972 8974) the Hoare annotation is: true [2021-11-25 20:33:34,454 INFO L854 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: (let ((.cse5 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse3 (select .cse5 .cse2))) (let ((.cse4 (= .cse3 0)) (.cse0 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse6 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= (select .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|) 0) (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base| 0)) (= (select .cse1 .cse2) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (or (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse4) (= (select .cse5 .cse6) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_assert_bytes_match_#t~mem589#1| |ULTIMATE.start_assert_bytes_match_#t~mem588#1|) (or .cse4 (let ((.cse7 (select .cse0 (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|)))) (<= .cse7 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse7) 18446744073709551616)))))) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= 0 (select .cse1 .cse6)) (not (= |ULTIMATE.start_assert_bytes_match_~a#1.base| 0)) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,454 INFO L854 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: (let ((.cse5 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse3 (select .cse5 .cse2))) (let ((.cse4 (= .cse3 0)) (.cse0 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse6 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= (select .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|) 0) (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base| 0)) (= (select .cse1 .cse2) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (or (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse4) (= (select .cse5 .cse6) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (or .cse4 (let ((.cse7 (select .cse0 (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|)))) (<= .cse7 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse7) 18446744073709551616)))))) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= 0 (select .cse1 .cse6)) (not (= |ULTIMATE.start_assert_bytes_match_~a#1.base| 0)) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,454 INFO L854 garLoopResultBuilder]: At program point L8968(line 8968) the Hoare annotation is: (let ((.cse5 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse3 (select .cse5 .cse2))) (let ((.cse4 (= .cse3 0)) (.cse0 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse6 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= (select .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base| 0)) (= (select .cse1 .cse2) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (or (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse4) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1212#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= (select .cse5 .cse6) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (or .cse4 (let ((.cse7 (select .cse0 (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|)))) (<= .cse7 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse7) 18446744073709551616)))))) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= 0 (select .cse1 .cse6)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,454 INFO L858 garLoopResultBuilder]: For program point L8968-1(line 8968) no Hoare annotation was computed. [2021-11-25 20:33:34,455 INFO L858 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2021-11-25 20:33:34,455 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 20:33:34,455 INFO L858 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2021-11-25 20:33:34,455 INFO L854 garLoopResultBuilder]: At program point L8230(line 8230) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|)) (.cse7 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 8))) (let ((.cse2 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|)) (.cse3 (select .cse0 .cse7))) (let ((.cse1 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 24)) (.cse4 (= .cse3 0)) (.cse6 (select .cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 16))) (.cse5 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|))) (and (= 0 (select .cse0 .cse1)) (= (select .cse2 |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset|) 0) (or (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse4) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| 0)) (= (select .cse5 .cse1) 0) (or (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616)))) .cse4) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~capacity#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (or (not .cse4) (<= (mod .cse6 18446744073709551616) 0)) (= .cse6 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= (select .cse5 .cse7) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 0) (< 1 |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0) (< 0 |#StackHeapBarrier|))))) [2021-11-25 20:33:34,455 INFO L854 garLoopResultBuilder]: At program point L8969(lines 8969 8971) the Hoare annotation is: (let ((.cse5 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse3 (select .cse5 .cse2))) (let ((.cse4 (= .cse3 0)) (.cse0 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse6 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= (select .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base| 0)) (= (select .cse1 .cse2) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (or (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse4) (= (select .cse5 .cse6) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (or .cse4 (let ((.cse7 (select .cse0 (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|)))) (<= .cse7 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse7) 18446744073709551616)))))) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= 0 (select .cse1 .cse6)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1213#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~mem1213#1.base| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,456 INFO L858 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2021-11-25 20:33:34,456 INFO L858 garLoopResultBuilder]: For program point L8969-1(lines 8969 8971) no Hoare annotation was computed. [2021-11-25 20:33:34,456 INFO L854 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: (let ((.cse5 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse3 (select .cse5 .cse2))) (let ((.cse4 (= .cse3 0)) (.cse0 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse6 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= (select .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|) 0) (= |ULTIMATE.start_assert_bytes_match_~b#1.offset| 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base| 0)) (= (select .cse1 .cse2) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (or (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse4) (= (select .cse5 .cse6) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (or .cse4 (let ((.cse7 (select .cse0 (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|)))) (<= .cse7 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse7) 18446744073709551616)))))) (= |ULTIMATE.start_assert_bytes_match_~b#1.base| |ULTIMATE.start_assert_bytes_match_~a#1.base|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= 0 (select .cse1 .cse6)) (not (= |ULTIMATE.start_assert_bytes_match_~a#1.base| 0)) (= |ULTIMATE.start_assert_bytes_match_~a#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,456 INFO L854 garLoopResultBuilder]: At program point L8230-2(line 8230) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|)) (.cse7 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 8))) (let ((.cse2 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|)) (.cse3 (select .cse0 .cse7))) (let ((.cse1 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 24)) (.cse4 (= .cse3 0)) (.cse6 (select .cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 16))) (.cse5 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|))) (and (= 0 (select .cse0 .cse1)) (<= |ULTIMATE.start_aws_byte_buf_from_empty_array_#t~ret1059#1| 1) (= (select .cse2 |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset|) 0) (or (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse4) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| 0)) (= (select .cse5 .cse1) 0) (or (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616)))) .cse4) (<= 1 |ULTIMATE.start_aws_byte_buf_from_empty_array_#t~ret1059#1|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~capacity#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= .cse6 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= (select .cse5 .cse7) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,457 INFO L854 garLoopResultBuilder]: At program point L8230-1(line 8230) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|)) (.cse7 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 8))) (let ((.cse2 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|)) (.cse3 (select .cse0 .cse7))) (let ((.cse1 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 24)) (.cse4 (= .cse3 0)) (.cse6 (select .cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 16))) (.cse5 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base|))) (and (= 0 (select .cse0 .cse1)) (<= |ULTIMATE.start_aws_byte_buf_from_empty_array_#t~ret1059#1| 1) (= (select .cse2 |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset|) 0) (or (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse4) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| 0)) (= (select .cse5 .cse1) 0) (or (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616)))) .cse4) (<= 1 |ULTIMATE.start_aws_byte_buf_from_empty_array_#t~ret1059#1|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~capacity#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= .cse6 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= (select .cse5 .cse7) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,457 INFO L858 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-11-25 20:33:34,457 INFO L854 garLoopResultBuilder]: At program point L8966-1(line 8966) the Hoare annotation is: (let ((.cse6 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse4 (select .cse6 .cse2))) (let ((.cse5 (= .cse4 0)) (.cse0 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse7 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= (select .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base| 0)) (= (select .cse1 .cse2) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_16| Int)) (let ((.cse3 (select (select |#memory_int| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_16|) 16))) (and (= .cse3 (select (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|) (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|))) (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|)))) (or (= .cse4 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse5) (= (select .cse6 .cse7) 0) (<= 1 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~ret1210#1|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (or .cse5 (let ((.cse8 (select .cse0 (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|)))) (<= .cse8 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse8) 18446744073709551616)))))) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (<= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_#t~ret1210#1| 1) (= 0 (select .cse1 .cse7)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,457 INFO L858 garLoopResultBuilder]: For program point L8966-2(line 8966) no Hoare annotation was computed. [2021-11-25 20:33:34,458 INFO L854 garLoopResultBuilder]: At program point L8966(line 8966) the Hoare annotation is: (let ((.cse6 (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse2 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 8))) (let ((.cse4 (select .cse6 .cse2))) (let ((.cse5 (= .cse4 0)) (.cse0 (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse1 (select |#memory_$Pointer$.offset| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|)) (.cse7 (+ |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 24))) (and (= (select .cse0 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|) 0) (= (select .cse1 .cse2) 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.offset| 0) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.base| 0)) (exists ((|v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_16| Int)) (let ((.cse3 (select (select |#memory_int| |v_ULTIMATE.start_aws_byte_buf_from_empty_array_~#buf~2#1.base_16|) 16))) (and (= .cse3 (select (select |#memory_int| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base|) (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|))) (= .cse3 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|)))) (or (= .cse4 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~array~0#1.base|) .cse5) (= (select .cse6 .cse7) 0) (not (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~capacity#1| |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~capacity~1#1|) (or .cse5 (let ((.cse8 (select .cse0 (+ 16 |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset|)))) (<= .cse8 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse8) 18446744073709551616)))))) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_~bytes#1.offset| 0) (= 0 (select .cse1 .cse7)) (= |ULTIMATE.start_aws_byte_buf_from_empty_array_harness_~#buf~3#1.offset| 0))))) [2021-11-25 20:33:34,458 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-25 20:33:34,458 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-11-25 20:33:34,458 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-25 20:33:34,458 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-11-25 20:33:34,459 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-11-25 20:33:34,459 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-25 20:33:34,462 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:34,463 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 20:33:34,469 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:34,470 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:34,471 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:34,471 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-25 20:33:34,472 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:34,472 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-25 20:33:34,478 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:34,478 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:34,478 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:34,479 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-25 20:33:34,479 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:34,479 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-25 20:33:34,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:33:34 BoogieIcfgContainer [2021-11-25 20:33:34,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 20:33:34,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 20:33:34,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 20:33:34,482 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 20:33:34,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:33:16" (3/4) ... [2021-11-25 20:33:34,486 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 20:33:34,491 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-11-25 20:33:34,491 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-11-25 20:33:34,491 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_buf_is_valid [2021-11-25 20:33:34,491 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-25 20:33:34,491 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-25 20:33:34,506 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 134 nodes and edges [2021-11-25 20:33:34,508 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2021-11-25 20:33:34,510 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-25 20:33:34,511 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-25 20:33:34,513 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-25 20:33:34,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 20:33:34,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 20:33:34,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 20:33:35,422 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 20:33:35,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 20:33:35,423 INFO L158 Benchmark]: Toolchain (without parser) took 23529.22ms. Allocated memory was 104.9MB in the beginning and 511.7MB in the end (delta: 406.8MB). Free memory was 66.8MB in the beginning and 292.6MB in the end (delta: -225.8MB). Peak memory consumption was 330.5MB. Max. memory is 16.1GB. [2021-11-25 20:33:35,424 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 104.9MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:33:35,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2704.40ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 66.8MB in the beginning and 68.7MB in the end (delta: -1.9MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2021-11-25 20:33:35,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 256.74ms. Allocated memory is still 125.8MB. Free memory was 68.7MB in the beginning and 57.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 20:33:35,425 INFO L158 Benchmark]: Boogie Preprocessor took 75.44ms. Allocated memory is still 125.8MB. Free memory was 57.5MB in the beginning and 51.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 20:33:35,425 INFO L158 Benchmark]: RCFGBuilder took 1982.79ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 51.3MB in the beginning and 117.5MB in the end (delta: -66.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2021-11-25 20:33:35,426 INFO L158 Benchmark]: TraceAbstraction took 17563.60ms. Allocated memory was 182.5MB in the beginning and 425.7MB in the end (delta: 243.3MB). Free memory was 117.5MB in the beginning and 251.5MB in the end (delta: -134.0MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. [2021-11-25 20:33:35,426 INFO L158 Benchmark]: Witness Printer took 940.54ms. Allocated memory was 425.7MB in the beginning and 511.7MB in the end (delta: 86.0MB). Free memory was 251.5MB in the beginning and 292.6MB in the end (delta: -41.0MB). Peak memory consumption was 195.1MB. Max. memory is 16.1GB. [2021-11-25 20:33:35,428 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 104.9MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2704.40ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 66.8MB in the beginning and 68.7MB in the end (delta: -1.9MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 256.74ms. Allocated memory is still 125.8MB. Free memory was 68.7MB in the beginning and 57.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.44ms. Allocated memory is still 125.8MB. Free memory was 57.5MB in the beginning and 51.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1982.79ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 51.3MB in the beginning and 117.5MB in the end (delta: -66.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * TraceAbstraction took 17563.60ms. Allocated memory was 182.5MB in the beginning and 425.7MB in the end (delta: 243.3MB). Free memory was 117.5MB in the beginning and 251.5MB in the end (delta: -134.0MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. * Witness Printer took 940.54ms. Allocated memory was 425.7MB in the beginning and 511.7MB in the end (delta: 86.0MB). Free memory was 251.5MB in the beginning and 292.6MB in the end (delta: -41.0MB). Peak memory consumption was 195.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.5s, OverallIterations: 7, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 1688 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 86 IncrementalHoareTripleChecker+Unchecked, 1661 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1003 IncrementalHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 252 mSDtfsCounter, 1003 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=6, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 39 PreInvPairs, 50 NumberOfFragments, 1555 HoareAnnotationTreeSize, 39 FomulaSimplifications, 88 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 360 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 355 NumberOfCodeBlocks, 355 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 346 ConstructedInterpolants, 7 QuantifiedInterpolants, 2555 SizeOfPredicates, 33 NumberOfNonLiveVariables, 4844 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 234/236 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8230]: Loop Invariant [2021-11-25 20:33:35,438 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:35,438 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:35,439 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:35,439 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-25 20:33:35,439 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:35,440 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-25 20:33:35,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:35,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:35,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:35,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-11-25 20:33:35,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-11-25 20:33:35,443 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: (((((((((((((((0 == #memory_$Pointer$[buf][buf + 24] && aux-aws_byte_buf_is_valid(&buf)-aux <= 1) && unknown-#memory_int-unknown[buf][buf] == 0) && (#memory_$Pointer$[buf][buf + 8] == array || #memory_$Pointer$[buf][buf + 8] == 0)) && array == 0) && bytes == array) && !(bytes == 0)) && #memory_$Pointer$[buf][buf + 24] == 0) && (unknown-#memory_int-unknown[buf][buf + 16] <= 18446744073709551615 + 18446744073709551616 * ((-1 + unknown-#memory_int-unknown[buf][buf + 16]) / 18446744073709551616) || #memory_$Pointer$[buf][buf + 8] == 0)) && 1 <= aux-aws_byte_buf_is_valid(&buf)-aux) && !(buf == 0)) && capacity == capacity) && unknown-#memory_int-unknown[buf][buf + 16] == capacity) && bytes == 0) && #memory_$Pointer$[buf][buf + 8] == 0) && buf == 0) && buf == 0 - InvariantResult [Line: 8972]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-25 20:33:35,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d19fd6-8cca-459b-ba1e-828010889145/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE