./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8 --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 be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:12:32,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:12:32,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:12:32,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:12:32,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:12:32,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:12:32,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:12:32,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:12:32,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:12:32,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:12:32,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:12:32,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:12:32,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:12:32,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:12:32,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:12:32,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:12:32,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:12:32,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:12:32,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:12:32,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:12:32,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:12:32,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:12:32,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:12:32,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:12:32,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:12:32,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:12:32,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:12:32,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:12:32,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:12:32,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:12:32,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:12:32,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:12:32,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:12:32,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:12:32,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:12:32,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:12:32,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:12:32,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:12:32,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:12:32,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:12:32,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:12:32,330 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:12:32,376 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:12:32,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:12:32,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:12:32,379 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:12:32,379 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:12:32,379 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:12:32,380 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:12:32,380 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:12:32,380 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:12:32,380 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:12:32,381 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:12:32,382 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:12:32,382 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:12:32,382 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:12:32,382 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:12:32,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:12:32,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:12:32,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:12:32,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:12:32,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:12:32,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:12:32,384 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:12:32,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:12:32,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:12:32,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:12:32,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:12:32,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:12:32,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:12:32,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:12:32,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:12:32,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:12:32,388 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:12:32,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:12:32,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:12:32,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:12:32,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:12:32,389 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2021-11-07 01:12:32,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:12:32,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:12:32,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:12:32,769 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:12:32,770 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:12:32,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-07 01:12:32,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data/f309a3381/ca102410d36141879c1b823a03bb99e6/FLAG41a4e406c [2021-11-07 01:12:33,739 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:12:33,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-07 01:12:33,789 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data/f309a3381/ca102410d36141879c1b823a03bb99e6/FLAG41a4e406c [2021-11-07 01:12:34,220 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data/f309a3381/ca102410d36141879c1b823a03bb99e6 [2021-11-07 01:12:34,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:12:34,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:12:34,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:12:34,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:12:34,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:12:34,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:12:34" (1/1) ... [2021-11-07 01:12:34,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1356ce79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:34, skipping insertion in model container [2021-11-07 01:12:34,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:12:34" (1/1) ... [2021-11-07 01:12:34,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:12:34,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:12:34,649 WARN L228 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2021-11-07 01:12:34,658 WARN L228 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2021-11-07 01:12:34,688 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:12:34,702 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:12:35,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,470 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,487 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,490 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,492 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:35,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:12:35,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:12:35,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:12:35,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:12:35,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:12:35,899 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:12:35,899 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:12:35,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:12:35,901 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:12:35,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:12:36,067 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:12:36,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:12:36,106 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:12:36,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ac5cc3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:36, skipping insertion in model container [2021-11-07 01:12:36,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:12:36,108 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:12:36,110 INFO L168 Benchmark]: Toolchain (without parser) took 1882.48 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 41.8 MB in the end (delta: 28.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:12:36,111 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory is still 72.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:12:36,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1877.47 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 41.8 MB in the end (delta: 28.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:12:36,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory is still 72.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1877.47 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 41.8 MB in the end (delta: 28.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7034]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8 --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 be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:12:38,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:12:38,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:12:38,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:12:38,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:12:38,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:12:38,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:12:38,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:12:38,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:12:38,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:12:38,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:12:38,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:12:38,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:12:38,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:12:38,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:12:38,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:12:38,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:12:38,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:12:38,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:12:38,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:12:38,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:12:38,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:12:38,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:12:38,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:12:38,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:12:38,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:12:38,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:12:38,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:12:38,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:12:38,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:12:38,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:12:38,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:12:38,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:12:38,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:12:38,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:12:38,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:12:38,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:12:38,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:12:38,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:12:38,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:12:38,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:12:38,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:12:38,733 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:12:38,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:12:38,735 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:12:38,735 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:12:38,735 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:12:38,735 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:12:38,736 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:12:38,736 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:12:38,736 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:12:38,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:12:38,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:12:38,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:12:38,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:12:38,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:12:38,740 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:12:38,740 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:12:38,740 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:12:38,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:12:38,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:12:38,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:12:38,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:12:38,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:12:38,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:12:38,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:12:38,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:12:38,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:12:38,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:12:38,743 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:12:38,743 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:12:38,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:12:38,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:12:38,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:12:38,744 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2021-11-07 01:12:39,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:12:39,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:12:39,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:12:39,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:12:39,155 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:12:39,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-07 01:12:39,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data/185b44e02/af83c2fcdd614222ad19a8e5dad95e54/FLAG355e59a9b [2021-11-07 01:12:40,212 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:12:40,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2021-11-07 01:12:40,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data/185b44e02/af83c2fcdd614222ad19a8e5dad95e54/FLAG355e59a9b [2021-11-07 01:12:40,665 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/data/185b44e02/af83c2fcdd614222ad19a8e5dad95e54 [2021-11-07 01:12:40,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:12:40,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:12:40,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:12:40,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:12:40,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:12:40,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:12:40" (1/1) ... [2021-11-07 01:12:40,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af8df99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:40, skipping insertion in model container [2021-11-07 01:12:40,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:12:40" (1/1) ... [2021-11-07 01:12:40,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:12:40,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:12:41,133 WARN L228 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2021-11-07 01:12:41,144 WARN L228 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2021-11-07 01:12:41,168 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:12:41,181 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:12:42,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,079 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,105 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,108 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,111 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,111 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:12:42,522 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:12:42,523 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:12:42,524 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:12:42,526 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:12:42,527 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:12:42,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:12:42,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:12:42,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:12:42,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:12:42,725 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:12:42,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:12:42,768 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:12:42,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:12:42,803 WARN L228 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2021-11-07 01:12:42,804 WARN L228 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2021-11-07 01:12:42,805 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:12:42,806 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:12:42,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,861 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,863 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:42,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:12:42,978 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:12:42,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:12:42,980 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:12:42,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:12:42,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:12:42,982 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:12:42,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:12:42,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:12:42,984 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:12:43,007 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:12:43,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:12:43,028 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:12:43,059 WARN L228 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2021-11-07 01:12:43,067 WARN L228 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_89453cd5-dfc0-4116-b7d7-e57707b1f958/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2021-11-07 01:12:43,069 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:12:43,070 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:12:43,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,155 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,155 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,156 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,157 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,158 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,158 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:12:43,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:12:43,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:12:43,222 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:12:43,223 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:12:43,225 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:12:43,225 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:12:43,226 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:12:43,227 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:12:43,227 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:12:43,228 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:12:43,258 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:12:43,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:12:43,597 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:12:43,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43 WrapperNode [2021-11-07 01:12:43,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:12:43,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:12:43,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:12:43,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:12:43,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:12:43,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:12:43,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:12:43,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:12:43,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:12:43,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:12:43,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:12:43,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:12:43,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (1/1) ... [2021-11-07 01:12:43,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:12:43,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:12:43,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:12:43,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:12:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:12:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:12:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:12:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:12:44,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:12:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:12:44,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:12:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:12:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:12:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:12:44,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:12:44,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:12:44,788 INFO L299 CfgBuilder]: Removed 36 assume(true) statements. [2021-11-07 01:12:44,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:12:44 BoogieIcfgContainer [2021-11-07 01:12:44,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:12:44,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:12:44,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:12:44,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:12:44,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:12:40" (1/3) ... [2021-11-07 01:12:44,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6166ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:12:44, skipping insertion in model container [2021-11-07 01:12:44,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:12:43" (2/3) ... [2021-11-07 01:12:44,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6166ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:12:44, skipping insertion in model container [2021-11-07 01:12:44,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:12:44" (3/3) ... [2021-11-07 01:12:44,799 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2021-11-07 01:12:44,805 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:12:44,805 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 01:12:44,856 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:12:44,862 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 [2021-11-07 01:12:44,863 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 01:12:44,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 39 states have internal predecessors, (49), 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) [2021-11-07 01:12:44,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:12:44,884 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:12:44,885 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:12:44,886 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:12:44,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:12:44,901 INFO L85 PathProgramCache]: Analyzing trace with hash 625727524, now seen corresponding path program 1 times [2021-11-07 01:12:44,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:12:44,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261908141] [2021-11-07 01:12:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:12:44,921 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:12:44,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:12:44,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:12:44,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:12:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:12:45,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:12:45,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:12:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:45,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:12:45,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:45,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:12:45,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261908141] [2021-11-07 01:12:45,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261908141] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:12:45,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:12:45,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:12:45,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744935052] [2021-11-07 01:12:45,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:12:45,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:12:45,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:12:45,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:12:45,447 INFO L87 Difference]: Start difference. First operand has 40 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 39 states have internal predecessors, (49), 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) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-07 01:12:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:12:45,464 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2021-11-07 01:12:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:12:45,466 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) Word has length 24 [2021-11-07 01:12:45,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:12:45,474 INFO L225 Difference]: With dead ends: 76 [2021-11-07 01:12:45,475 INFO L226 Difference]: Without dead ends: 35 [2021-11-07 01:12:45,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:12:45,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-07 01:12:45,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-07 01:12:45,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 34 states have internal predecessors, (39), 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) [2021-11-07 01:12:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-11-07 01:12:45,524 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2021-11-07 01:12:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:12:45,525 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-11-07 01:12:45,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-07 01:12:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-11-07 01:12:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:12:45,527 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:12:45,527 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:12:45,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:12:45,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:12:45,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:12:45,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:12:45,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1050276392, now seen corresponding path program 1 times [2021-11-07 01:12:45,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:12:45,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574968286] [2021-11-07 01:12:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:12:45,751 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:12:45,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:12:45,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:12:45,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:12:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:12:45,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:12:45,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:12:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:46,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:12:46,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:46,406 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:12:46,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574968286] [2021-11-07 01:12:46,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574968286] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:12:46,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:12:46,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 10 [2021-11-07 01:12:46,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564239919] [2021-11-07 01:12:46,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:12:46,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:12:46,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:12:46,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:12:46,419 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-11-07 01:12:48,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:12:48,474 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2021-11-07 01:12:48,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:12:48,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) Word has length 24 [2021-11-07 01:12:48,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:12:48,476 INFO L225 Difference]: With dead ends: 54 [2021-11-07 01:12:48,476 INFO L226 Difference]: Without dead ends: 35 [2021-11-07 01:12:48,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:12:48,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-07 01:12:48,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-07 01:12:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 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) [2021-11-07 01:12:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-11-07 01:12:48,486 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 24 [2021-11-07 01:12:48,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:12:48,486 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-11-07 01:12:48,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 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) [2021-11-07 01:12:48,487 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-11-07 01:12:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:12:48,488 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:12:48,488 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:12:48,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:12:48,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:12:48,707 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:12:48,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:12:48,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1859623018, now seen corresponding path program 1 times [2021-11-07 01:12:48,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:12:48,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844579379] [2021-11-07 01:12:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:12:48,709 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:12:48,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:12:48,711 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:12:48,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:12:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:12:48,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:12:48,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:12:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:49,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:12:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:49,750 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:12:49,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844579379] [2021-11-07 01:12:49,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844579379] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:12:49,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:12:49,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 5] imperfect sequences [] total 13 [2021-11-07 01:12:49,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384308583] [2021-11-07 01:12:49,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:12:49,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:12:49,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:12:49,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:12:49,753 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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) [2021-11-07 01:12:51,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:12:51,905 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-11-07 01:12:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:12:51,906 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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) Word has length 24 [2021-11-07 01:12:51,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:12:51,907 INFO L225 Difference]: With dead ends: 35 [2021-11-07 01:12:51,907 INFO L226 Difference]: Without dead ends: 33 [2021-11-07 01:12:51,908 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2021-11-07 01:12:51,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-07 01:12:51,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-07 01:12:51,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 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) [2021-11-07 01:12:51,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-11-07 01:12:51,915 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2021-11-07 01:12:51,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:12:51,915 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-11-07 01:12:51,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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) [2021-11-07 01:12:51,916 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-11-07 01:12:51,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:12:51,917 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:12:51,918 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:12:51,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:12:52,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:12:52,135 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:12:52,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:12:52,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1676025637, now seen corresponding path program 1 times [2021-11-07 01:12:52,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:12:52,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618944079] [2021-11-07 01:12:52,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:12:52,137 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:12:52,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:12:52,138 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:12:52,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89453cd5-dfc0-4116-b7d7-e57707b1f958/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:12:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:12:52,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-07 01:12:52,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:12:54,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:12:54,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:14:18,529 WARN L207 SmtUtils]: Spent 1.36 m on a formula simplification. DAG size of input: 662 DAG size of output: 412 [2021-11-07 01:14:18,542 INFO L354 Elim1Store]: treesize reduction 860, result has 57.3 percent of original size [2021-11-07 01:14:18,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 20 new quantified variables, introduced 153 case distinctions, treesize of input 148 treesize of output 1203