./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_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_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/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_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/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_e04b246f-fcb5-4f98-8405-5f854ee212a5/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 e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:09:10,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:09:10,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:09:10,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:09:10,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:09:10,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:09:10,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:09:10,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:09:10,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:09:10,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:09:10,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:09:10,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:09:10,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:09:10,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:09:10,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:09:10,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:09:10,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:09:10,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:09:11,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:09:11,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:09:11,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:09:11,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:09:11,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:09:11,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:09:11,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:09:11,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:09:11,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:09:11,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:09:11,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:09:11,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:09:11,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:09:11,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:09:11,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:09:11,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:09:11,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:09:11,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:09:11,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:09:11,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:09:11,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:09:11,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:09:11,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:09:11,046 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:09:11,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:09:11,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:09:11,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:09:11,091 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:09:11,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:09:11,092 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:09:11,092 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:09:11,092 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:09:11,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:09:11,099 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:09:11,100 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:09:11,100 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:09:11,101 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:09:11,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:09:11,101 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:09:11,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:09:11,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:09:11,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:09:11,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:09:11,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:09:11,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:09:11,103 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:09:11,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:09:11,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:09:11,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:09:11,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:09:11,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:09:11,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:11,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:09:11,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:09:11,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:09:11,108 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:09:11,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:09:11,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:09:11,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:09:11,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:09:11,109 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb [2021-11-07 02:09:11,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:09:11,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:09:11,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:09:11,420 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:09:11,421 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:09:11,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-07 02:09:11,494 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data/830122d71/84864f72d5334616b6519ac04058c9d0/FLAG69ff976f2 [2021-11-07 02:09:12,244 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:09:12,245 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-07 02:09:12,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data/830122d71/84864f72d5334616b6519ac04058c9d0/FLAG69ff976f2 [2021-11-07 02:09:12,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data/830122d71/84864f72d5334616b6519ac04058c9d0 [2021-11-07 02:09:12,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:09:12,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:09:12,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:12,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:09:12,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:09:12,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:12" (1/1) ... [2021-11-07 02:09:12,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3601dae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:12, skipping insertion in model container [2021-11-07 02:09:12,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:12" (1/1) ... [2021-11-07 02:09:12,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:09:12,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:13,259 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2021-11-07 02:09:13,266 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2021-11-07 02:09:13,291 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:09:13,297 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:09:14,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:14,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:14,601 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:14,601 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:14,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:14,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:14,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:14,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:14,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:15,186 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:09:15,196 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:09:15,197 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:09:15,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:09:15,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:09:15,201 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:09:15,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:09:15,202 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:09:15,203 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:09:15,204 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:09:15,376 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:09:15,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:15,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:15,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:15,703 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 02:09:15,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2dc1b752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:15, skipping insertion in model container [2021-11-07 02:09:15,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:15,706 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:09:15,709 INFO L168 Benchmark]: Toolchain (without parser) took 2905.28 ms. Allocated memory was 102.8 MB in the beginning and 161.5 MB in the end (delta: 58.7 MB). Free memory was 54.8 MB in the beginning and 112.9 MB in the end (delta: -58.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:15,709 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 102.8 MB. Free memory is still 80.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:09:15,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2899.32 ms. Allocated memory was 102.8 MB in the beginning and 161.5 MB in the end (delta: 58.7 MB). Free memory was 54.5 MB in the beginning and 112.9 MB in the end (delta: -58.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:15,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 102.8 MB. Free memory is still 80.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2899.32 ms. Allocated memory was 102.8 MB in the beginning and 161.5 MB in the end (delta: 58.7 MB). Free memory was 54.5 MB in the beginning and 112.9 MB in the end (delta: -58.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/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_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/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_e04b246f-fcb5-4f98-8405-5f854ee212a5/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 e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:09:18,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:09:18,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:09:18,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:09:18,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:09:18,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:09:18,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:09:18,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:09:18,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:09:18,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:09:18,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:09:18,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:09:18,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:09:18,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:09:18,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:09:18,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:09:18,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:09:18,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:09:18,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:09:18,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:09:18,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:09:18,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:09:18,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:09:18,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:09:18,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:09:18,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:09:18,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:09:18,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:09:18,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:09:18,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:09:18,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:09:18,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:09:18,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:09:18,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:09:18,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:09:18,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:09:18,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:09:18,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:09:18,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:09:18,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:09:18,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:09:18,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:09:18,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:09:18,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:09:18,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:09:18,230 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:09:18,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:09:18,230 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:09:18,230 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:09:18,230 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:09:18,231 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:09:18,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:09:18,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:09:18,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:09:18,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:09:18,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:09:18,235 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:09:18,235 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:09:18,235 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:09:18,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:09:18,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:09:18,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:09:18,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:09:18,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:09:18,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:09:18,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:18,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:09:18,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:09:18,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:09:18,238 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:09:18,238 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:09:18,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:09:18,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:09:18,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:09:18,239 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e695a989d07c92d21e9a41b59ca742c73a2098242f3cafca723523a39a7793cb [2021-11-07 02:09:18,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:09:18,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:09:18,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:09:18,650 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:09:18,651 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:09:18,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-07 02:09:18,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data/ef01d2eb0/bff956b1edc44995bbbf7641953af679/FLAG3f7213433 [2021-11-07 02:09:19,779 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:09:19,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2021-11-07 02:09:19,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data/ef01d2eb0/bff956b1edc44995bbbf7641953af679/FLAG3f7213433 [2021-11-07 02:09:20,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/data/ef01d2eb0/bff956b1edc44995bbbf7641953af679 [2021-11-07 02:09:20,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:09:20,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:09:20,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:20,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:09:20,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:09:20,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:20" (1/1) ... [2021-11-07 02:09:20,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5e3fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:20, skipping insertion in model container [2021-11-07 02:09:20,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:20" (1/1) ... [2021-11-07 02:09:20,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:09:20,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:20,775 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2021-11-07 02:09:20,784 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2021-11-07 02:09:20,816 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:09:20,825 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:09:22,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:22,358 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:22,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:22,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:22,363 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:22,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:22,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:22,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:22,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:09:23,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:09:23,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:09:23,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:09:23,034 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:09:23,035 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:09:23,036 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:09:23,037 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:09:23,039 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:09:23,040 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:09:23,319 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:09:23,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:23,598 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:09:23,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:23,657 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2021-11-07 02:09:23,657 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2021-11-07 02:09:23,658 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:09:23,659 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:09:23,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,692 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,730 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:09:23,731 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:09:23,732 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:09:23,732 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:09:23,733 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:09:23,734 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:09:23,734 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:09:23,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:09:23,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:09:23,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:09:23,754 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:09:23,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:23,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:23,942 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:09:23,966 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2021-11-07 02:09:23,967 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_e04b246f-fcb5-4f98-8405-5f854ee212a5/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2021-11-07 02:09:23,968 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:09:23,969 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:09:24,008 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,010 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,082 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:09:24,082 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:09:24,083 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:09:24,084 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:09:24,085 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:09:24,085 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:09:24,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:09:24,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:09:24,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:09:24,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:09:24,116 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:09:24,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:24,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:24,498 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:09:24,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24 WrapperNode [2021-11-07 02:09:24,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:24,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:09:24,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:09:24,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:09:24,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:09:24,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:09:24,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:09:24,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:09:24,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:09:24,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:09:24,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:09:24,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:09:24,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:25,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:25,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:09:25,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:09:25,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:09:25,121 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-07 02:09:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:09:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 02:09:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:09:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:09:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:09:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:09:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:09:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:09:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:09:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:09:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:09:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:09:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:09:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:09:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:09:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:09:39,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:09:39,779 INFO L299 CfgBuilder]: Removed 91 assume(true) statements. [2021-11-07 02:09:39,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:39 BoogieIcfgContainer [2021-11-07 02:09:39,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:09:39,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:09:39,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:09:39,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:09:39,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:09:20" (1/3) ... [2021-11-07 02:09:39,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2465cdf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:39, skipping insertion in model container [2021-11-07 02:09:39,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24" (2/3) ... [2021-11-07 02:09:39,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2465cdf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:39, skipping insertion in model container [2021-11-07 02:09:39,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:39" (3/3) ... [2021-11-07 02:09:39,790 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be64_harness.i [2021-11-07 02:09:39,796 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:09:39,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 02:09:39,847 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:09:39,853 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 02:09:39,853 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 02:09:39,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 188 states, 176 states have (on average 1.4829545454545454) internal successors, (261), 187 states have internal predecessors, (261), 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 02:09:39,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 02:09:39,880 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:39,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:09:39,881 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 02:09:39,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:39,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2035654772, now seen corresponding path program 1 times [2021-11-07 02:09:39,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:39,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349885310] [2021-11-07 02:09:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:39,911 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:39,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:39,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:39,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:09:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:44,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:09:44,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:44,454 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 02:09:44,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:44,660 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 02:09:44,661 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:44,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349885310] [2021-11-07 02:09:44,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349885310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:44,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:44,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:09:44,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136476549] [2021-11-07 02:09:44,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:09:44,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:44,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:09:44,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:09:44,701 INFO L87 Difference]: Start difference. First operand has 188 states, 176 states have (on average 1.4829545454545454) internal successors, (261), 187 states have internal predecessors, (261), 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 20.5) internal successors, (41), 2 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 02:09:44,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:44,755 INFO L93 Difference]: Finished difference Result 372 states and 517 transitions. [2021-11-07 02:09:44,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:09:44,758 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 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 41 [2021-11-07 02:09:44,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:44,768 INFO L225 Difference]: With dead ends: 372 [2021-11-07 02:09:44,768 INFO L226 Difference]: Without dead ends: 183 [2021-11-07 02:09:44,774 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 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 02:09:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-07 02:09:44,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-07 02:09:44,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 172 states have (on average 1.3604651162790697) internal successors, (234), 182 states have internal predecessors, (234), 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 02:09:44,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 234 transitions. [2021-11-07 02:09:44,819 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 234 transitions. Word has length 41 [2021-11-07 02:09:44,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:44,820 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 234 transitions. [2021-11-07 02:09:44,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 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 02:09:44,820 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 234 transitions. [2021-11-07 02:09:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 02:09:44,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:44,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:09:44,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 02:09:45,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:45,023 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 02:09:45,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:45,024 INFO L85 PathProgramCache]: Analyzing trace with hash 911785488, now seen corresponding path program 1 times [2021-11-07 02:09:45,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:45,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104838682] [2021-11-07 02:09:45,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:45,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:45,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:45,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:45,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:09:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:49,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:09:49,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:49,723 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 02:09:49,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:49,937 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 02:09:49,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:49,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104838682] [2021-11-07 02:09:49,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104838682] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:49,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:49,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:09:49,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635512174] [2021-11-07 02:09:49,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:09:49,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:49,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:09:49,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:09:49,942 INFO L87 Difference]: Start difference. First operand 183 states and 234 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 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 02:09:50,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:50,379 INFO L93 Difference]: Finished difference Result 340 states and 434 transitions. [2021-11-07 02:09:50,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:09:50,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 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 41 [2021-11-07 02:09:50,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:50,382 INFO L225 Difference]: With dead ends: 340 [2021-11-07 02:09:50,382 INFO L226 Difference]: Without dead ends: 183 [2021-11-07 02:09:50,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:09:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-07 02:09:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-07 02:09:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 172 states have (on average 1.3430232558139534) internal successors, (231), 182 states have internal predecessors, (231), 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 02:09:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 231 transitions. [2021-11-07 02:09:50,398 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 231 transitions. Word has length 41 [2021-11-07 02:09:50,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:50,399 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 231 transitions. [2021-11-07 02:09:50,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 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 02:09:50,399 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 231 transitions. [2021-11-07 02:09:50,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:09:50,401 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:50,402 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, 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 02:09:50,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 02:09:50,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:50,615 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 02:09:50,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:50,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1949548946, now seen corresponding path program 1 times [2021-11-07 02:09:50,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:50,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248664255] [2021-11-07 02:09:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:50,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:50,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:50,622 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:50,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:09:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:54,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:09:54,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:55,113 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 02:09:55,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:55,310 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 02:09:55,310 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:55,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248664255] [2021-11-07 02:09:55,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248664255] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:55,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:55,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:09:55,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858494470] [2021-11-07 02:09:55,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:09:55,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:55,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:09:55,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:09:55,313 INFO L87 Difference]: Start difference. First operand 183 states and 231 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 02:09:55,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:55,847 INFO L93 Difference]: Finished difference Result 401 states and 514 transitions. [2021-11-07 02:09:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:09:55,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2021-11-07 02:09:55,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:55,851 INFO L225 Difference]: With dead ends: 401 [2021-11-07 02:09:55,851 INFO L226 Difference]: Without dead ends: 243 [2021-11-07 02:09:55,852 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:09:55,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-07 02:09:55,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 195. [2021-11-07 02:09:55,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 184 states have (on average 1.3206521739130435) internal successors, (243), 194 states have internal predecessors, (243), 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 02:09:55,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 243 transitions. [2021-11-07 02:09:55,868 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 243 transitions. Word has length 53 [2021-11-07 02:09:55,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:55,868 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 243 transitions. [2021-11-07 02:09:55,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 02:09:55,868 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 243 transitions. [2021-11-07 02:09:55,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:09:55,870 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:55,871 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, 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 02:09:55,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 02:09:56,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:56,095 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 02:09:56,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash -920189648, now seen corresponding path program 1 times [2021-11-07 02:09:56,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:56,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308374229] [2021-11-07 02:09:56,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:56,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:56,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:56,102 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:56,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:10:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:00,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 02:10:00,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:00,665 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 [2021-11-07 02:10:01,035 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 02:10:01,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:01,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-07 02:10:01,634 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 02:10:01,634 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:01,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308374229] [2021-11-07 02:10:01,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308374229] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:01,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:01,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 02:10:01,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919136430] [2021-11-07 02:10:01,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 02:10:01,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:01,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 02:10:01,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:10:01,636 INFO L87 Difference]: Start difference. First operand 195 states and 243 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 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 02:10:11,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:11,119 INFO L93 Difference]: Finished difference Result 426 states and 537 transitions. [2021-11-07 02:10:11,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 02:10:11,119 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 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 53 [2021-11-07 02:10:11,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:11,121 INFO L225 Difference]: With dead ends: 426 [2021-11-07 02:10:11,121 INFO L226 Difference]: Without dead ends: 258 [2021-11-07 02:10:11,123 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2021-11-07 02:10:11,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-07 02:10:11,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 198. [2021-11-07 02:10:11,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 187 states have (on average 1.320855614973262) internal successors, (247), 197 states have internal predecessors, (247), 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 02:10:11,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 247 transitions. [2021-11-07 02:10:11,138 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 247 transitions. Word has length 53 [2021-11-07 02:10:11,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:11,138 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 247 transitions. [2021-11-07 02:10:11,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 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 02:10:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 247 transitions. [2021-11-07 02:10:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 02:10:11,140 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:11,140 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, 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 02:10:11,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:11,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:11,363 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 02:10:11,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:11,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1968076693, now seen corresponding path program 1 times [2021-11-07 02:10:11,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:11,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369916826] [2021-11-07 02:10:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:11,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:11,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:11,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:11,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:10:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:15,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:10:15,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:16,043 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 02:10:16,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 02:10:16,280 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 02:10:16,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:16,807 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 02:10:16,807 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:16,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369916826] [2021-11-07 02:10:16,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369916826] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:16,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:16,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 02:10:16,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58516604] [2021-11-07 02:10:16,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:10:16,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:16,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:10:16,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:10:16,809 INFO L87 Difference]: Start difference. First operand 198 states and 247 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 02:10:26,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:26,059 INFO L93 Difference]: Finished difference Result 598 states and 742 transitions. [2021-11-07 02:10:26,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:10:26,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 60 [2021-11-07 02:10:26,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:26,066 INFO L225 Difference]: With dead ends: 598 [2021-11-07 02:10:26,066 INFO L226 Difference]: Without dead ends: 420 [2021-11-07 02:10:26,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:10:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2021-11-07 02:10:26,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 240. [2021-11-07 02:10:26,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 229 states have (on average 1.314410480349345) internal successors, (301), 239 states have internal predecessors, (301), 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 02:10:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 301 transitions. [2021-11-07 02:10:26,082 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 301 transitions. Word has length 60 [2021-11-07 02:10:26,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:26,083 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 301 transitions. [2021-11-07 02:10:26,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 02:10:26,083 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 301 transitions. [2021-11-07 02:10:26,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 02:10:26,085 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:26,085 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, 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 02:10:26,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:26,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:26,307 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 02:10:26,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:26,308 INFO L85 PathProgramCache]: Analyzing trace with hash -2078744109, now seen corresponding path program 1 times [2021-11-07 02:10:26,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:26,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252264909] [2021-11-07 02:10:26,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:26,311 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:26,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:26,312 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:26,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:10:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:30,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:10:30,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:30,918 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 02:10:30,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 02:10:31,420 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 02:10:31,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:32,003 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 02:10:32,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:32,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252264909] [2021-11-07 02:10:32,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252264909] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:32,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:32,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 02:10:32,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649072587] [2021-11-07 02:10:32,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:10:32,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:32,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:10:32,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:10:32,006 INFO L87 Difference]: Start difference. First operand 240 states and 301 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 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 02:10:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:48,489 INFO L93 Difference]: Finished difference Result 741 states and 882 transitions. [2021-11-07 02:10:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 02:10:48,493 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 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 60 [2021-11-07 02:10:48,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:48,496 INFO L225 Difference]: With dead ends: 741 [2021-11-07 02:10:48,496 INFO L226 Difference]: Without dead ends: 463 [2021-11-07 02:10:48,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 02:10:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-11-07 02:10:48,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 233. [2021-11-07 02:10:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 222 states have (on average 1.2567567567567568) internal successors, (279), 232 states have internal predecessors, (279), 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 02:10:48,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 279 transitions. [2021-11-07 02:10:48,509 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 279 transitions. Word has length 60 [2021-11-07 02:10:48,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:48,510 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 279 transitions. [2021-11-07 02:10:48,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 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 02:10:48,510 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 279 transitions. [2021-11-07 02:10:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 02:10:48,511 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:48,511 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, 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] [2021-11-07 02:10:48,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 02:10:48,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:48,719 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 02:10:48,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:48,720 INFO L85 PathProgramCache]: Analyzing trace with hash 242136391, now seen corresponding path program 1 times [2021-11-07 02:10:48,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:48,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051233874] [2021-11-07 02:10:48,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:48,723 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:48,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:48,724 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:48,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04b246f-fcb5-4f98-8405-5f854ee212a5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:10:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:52,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 02:10:52,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:53,717 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:53,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-07 02:10:53,975 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 02:10:53,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:04,671 WARN L207 SmtUtils]: Spent 10.14 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 02:11:04,679 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 02:11:04,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772