./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:36:37,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:36:37,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:36:37,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:36:37,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:36:37,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:36:37,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:36:37,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:36:37,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:36:37,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:36:37,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:36:37,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:36:37,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:36:37,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:36:37,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:36:37,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:36:37,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:36:37,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:36:37,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:36:37,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:36:37,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:36:37,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:36:37,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:36:37,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:36:37,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:36:37,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:36:37,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:36:37,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:36:37,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:36:37,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:36:37,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:36:37,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:36:37,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:36:37,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:36:37,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:36:37,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:36:37,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:36:37,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:36:37,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:36:37,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:36:37,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:36:37,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:36:37,235 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:36:37,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:36:37,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:36:37,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:36:37,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:36:37,237 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:36:37,237 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:36:37,238 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:36:37,238 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:36:37,238 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:36:37,238 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:36:37,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:36:37,239 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:36:37,239 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:36:37,239 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:36:37,240 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:36:37,240 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:36:37,240 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:36:37,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:36:37,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:36:37,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:36:37,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:36:37,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:36:37,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:36:37,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:36:37,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:36:37,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:36:37,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:36:37,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:36:37,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:36:37,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:36:37,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:36:37,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:36:37,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:36:37,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:36:37,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:36:37,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:36:37,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:36:37,247 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_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2021-11-21 01:36:37,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:36:37,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:36:37,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:36:37,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:36:37,609 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:36:37,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-21 01:36:37,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/data/c82820030/b488c86aa3134555a05efde8a573dca6/FLAG16b45f2ad [2021-11-21 01:36:38,590 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:36:38,591 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-21 01:36:38,642 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/data/c82820030/b488c86aa3134555a05efde8a573dca6/FLAG16b45f2ad [2021-11-21 01:36:39,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/data/c82820030/b488c86aa3134555a05efde8a573dca6 [2021-11-21 01:36:39,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:36:39,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:36:39,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:36:39,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:36:39,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:36:39,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:36:39" (1/1) ... [2021-11-21 01:36:39,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22eb1022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:39, skipping insertion in model container [2021-11-21 01:36:39,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:36:39" (1/1) ... [2021-11-21 01:36:39,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:36:39,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:36:39,688 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_34d5fb30-d792-4a26-9b67-93c4e92a58b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-21 01:36:39,697 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_34d5fb30-d792-4a26-9b67-93c4e92a58b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-21 01:36:41,030 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,031 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,032 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,033 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,034 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,052 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,053 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,055 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,055 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,555 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:36:41,556 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:36:41,557 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:36:41,559 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:36:41,561 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:36:41,562 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:36:41,562 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:36:41,563 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:36:41,564 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:36:41,565 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:36:41,727 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:36:41,874 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:41,874 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:36:42,129 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:36:42,142 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_34d5fb30-d792-4a26-9b67-93c4e92a58b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-21 01:36:42,152 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_34d5fb30-d792-4a26-9b67-93c4e92a58b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-21 01:36:42,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,191 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,192 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,192 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,193 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,200 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,207 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,209 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,209 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,263 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:36:42,264 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:36:42,265 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:36:42,266 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:36:42,269 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:36:42,270 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:36:42,270 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:36:42,271 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:36:42,271 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:36:42,276 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:36:42,301 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:36:42,386 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,386 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:36:42,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:36:42,839 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:36:42,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42 WrapperNode [2021-11-21 01:36:42,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:36:42,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:36:42,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:36:42,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:36:42,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:42,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:43,098 INFO L137 Inliner]: procedures = 691, calls = 2619, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 856 [2021-11-21 01:36:43,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:36:43,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:36:43,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:36:43,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:36:43,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:43,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:43,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:43,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:43,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:43,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:43,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:43,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:36:43,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:36:43,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:36:43,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:36:43,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (1/1) ... [2021-11-21 01:36:43,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:36:43,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:36:43,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:36:43,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:36:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2021-11-21 01:36:43,339 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2021-11-21 01:36:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:36:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-21 01:36:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-21 01:36:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:36:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:36:43,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:36:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:36:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:36:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:36:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-21 01:36:43,344 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-21 01:36:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:36:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:36:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 01:36:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 01:36:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-21 01:36:43,345 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-21 01:36:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:36:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:36:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-21 01:36:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-21 01:36:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:36:43,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:36:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2021-11-21 01:36:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2021-11-21 01:36:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:36:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-21 01:36:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-21 01:36:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:36:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:36:43,626 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:36:43,628 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:36:45,382 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:36:45,710 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:36:45,710 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:36:45,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:36:45 BoogieIcfgContainer [2021-11-21 01:36:45,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:36:45,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:36:45,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:36:45,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:36:45,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:36:39" (1/3) ... [2021-11-21 01:36:45,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb1d299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:36:45, skipping insertion in model container [2021-11-21 01:36:45,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:36:42" (2/3) ... [2021-11-21 01:36:45,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb1d299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:36:45, skipping insertion in model container [2021-11-21 01:36:45,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:36:45" (3/3) ... [2021-11-21 01:36:45,735 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2021-11-21 01:36:45,743 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:36:45,743 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:36:45,822 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:36:45,838 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 [2021-11-21 01:36:45,839 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:36:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-21 01:36:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-21 01:36:45,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:45,876 INFO L514 BasicCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:36:45,876 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:45,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1762663939, now seen corresponding path program 1 times [2021-11-21 01:36:45,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:45,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914885688] [2021-11-21 01:36:45,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:45,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-21 01:36:50,819 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:50,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914885688] [2021-11-21 01:36:50,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914885688] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:36:50,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983110456] [2021-11-21 01:36:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:50,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:36:50,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:36:50,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:36:50,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d5fb30-d792-4a26-9b67-93c4e92a58b4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:36:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:51,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 2528 conjuncts, 127 conjunts are in the unsatisfiable core [2021-11-21 01:36:51,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:36:52,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:36:52,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-21 01:36:57,687 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-11-21 01:36:57,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 66 [2021-11-21 01:36:57,715 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-21 01:36:57,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 49 [2021-11-21 01:37:04,482 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:37:04,498 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:37:04,511 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:37:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 01:37:21,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:37:23,580 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 76449 disjunctions. This might take some time...