./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/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_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/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_b29d6959-2d02-471d-b082-b8b19b7a91b7/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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:05:46,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:05:46,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:05:46,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:05:46,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:05:46,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:05:46,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:05:46,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:05:46,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:05:46,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:05:46,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:05:46,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:05:46,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:05:46,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:05:46,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:05:46,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:05:46,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:05:46,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:05:46,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:05:46,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:05:46,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:05:46,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:05:46,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:05:46,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:05:46,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:05:46,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:05:46,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:05:46,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:05:46,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:05:46,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:05:46,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:05:46,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:05:46,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:05:46,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:05:46,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:05:46,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:05:46,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:05:46,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:05:46,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:05:46,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:05:46,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:05:46,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:05:46,964 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:05:46,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:05:46,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:05:46,966 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:05:46,966 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:05:46,966 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:05:46,967 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:05:46,967 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:05:46,967 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:05:46,967 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:05:46,974 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:05:46,974 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:05:46,974 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:05:46,975 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:05:46,975 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:05:46,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:05:46,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:05:46,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:05:46,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:05:46,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:05:46,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:05:46,977 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:05:46,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:05:46,977 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:05:46,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:05:46,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:05:46,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:05:46,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:05:46,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:05:46,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:05:46,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:05:46,980 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:05:46,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:05:46,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:05:46,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:05:46,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:05:46,982 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2021-11-07 02:05:47,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:05:47,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:05:47,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:05:47,293 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:05:47,293 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:05:47,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-07 02:05:47,361 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data/441beffc2/7d31744fbe2149899ecb162cfa6c2f36/FLAGbe1dfe136 [2021-11-07 02:05:48,214 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:05:48,215 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-07 02:05:48,266 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data/441beffc2/7d31744fbe2149899ecb162cfa6c2f36/FLAGbe1dfe136 [2021-11-07 02:05:48,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data/441beffc2/7d31744fbe2149899ecb162cfa6c2f36 [2021-11-07 02:05:48,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:05:48,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:05:48,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:05:48,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:05:48,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:05:48,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:48" (1/1) ... [2021-11-07 02:05:48,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50422660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:48, skipping insertion in model container [2021-11-07 02:05:48,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:48" (1/1) ... [2021-11-07 02:05:48,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:05:48,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:05:49,173 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-07 02:05:49,182 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-07 02:05:49,212 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:05:49,226 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:05:50,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,164 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,167 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,168 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,584 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:05:50,585 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:05:50,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:05:50,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:05:50,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:05:50,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:05:50,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:05:50,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:05:50,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:05:50,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:05:50,777 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:05:50,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:50,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:05:51,028 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 02:05:51,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@300f801a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:51, skipping insertion in model container [2021-11-07 02:05:51,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:05:51,030 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:05:51,032 INFO L168 Benchmark]: Toolchain (without parser) took 2337.31 ms. Allocated memory was 102.8 MB in the beginning and 153.1 MB in the end (delta: 50.3 MB). Free memory was 67.2 MB in the beginning and 75.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:51,033 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory was 56.5 MB in the beginning and 56.4 MB in the end (delta: 57.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:05:51,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2319.12 ms. Allocated memory was 102.8 MB in the beginning and 153.1 MB in the end (delta: 50.3 MB). Free memory was 66.9 MB in the beginning and 76.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:05:51,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory was 56.5 MB in the beginning and 56.4 MB in the end (delta: 57.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2319.12 ms. Allocated memory was 102.8 MB in the beginning and 153.1 MB in the end (delta: 50.3 MB). Free memory was 66.9 MB in the beginning and 76.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 39.8 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/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_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/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_b29d6959-2d02-471d-b082-b8b19b7a91b7/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 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:05:53,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:05:53,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:05:53,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:05:53,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:05:53,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:05:53,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:05:53,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:05:53,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:05:53,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:05:53,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:05:53,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:05:53,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:05:53,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:05:53,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:05:53,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:05:53,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:05:53,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:05:53,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:05:53,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:05:53,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:05:53,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:05:53,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:05:53,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:05:53,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:05:53,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:05:53,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:05:53,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:05:53,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:05:53,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:05:53,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:05:53,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:05:53,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:05:53,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:05:53,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:05:53,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:05:53,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:05:53,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:05:53,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:05:53,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:05:53,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:05:53,355 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:05:53,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:05:53,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:05:53,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:05:53,398 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:05:53,398 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:05:53,398 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:05:53,399 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:05:53,399 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:05:53,399 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:05:53,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:05:53,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:05:53,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:05:53,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:05:53,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:05:53,402 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:05:53,402 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:05:53,403 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:05:53,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:05:53,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:05:53,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:05:53,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:05:53,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:05:53,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:05:53,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:05:53,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:05:53,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:05:53,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:05:53,405 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:05:53,405 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:05:53,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:05:53,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:05:53,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:05:53,406 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624e111eb11fc6cb53be17248f0e61e18bd8cc958dfb511134351ecf4f085f78 [2021-11-07 02:05:53,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:05:53,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:05:53,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:05:53,798 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:05:53,799 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:05:53,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-07 02:05:53,863 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data/ddc2ae101/d2b1004b7a984d839226ffdb142a48b4/FLAGd2d92c968 [2021-11-07 02:05:54,771 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:05:54,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2021-11-07 02:05:54,818 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data/ddc2ae101/d2b1004b7a984d839226ffdb142a48b4/FLAGd2d92c968 [2021-11-07 02:05:55,197 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/data/ddc2ae101/d2b1004b7a984d839226ffdb142a48b4 [2021-11-07 02:05:55,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:05:55,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:05:55,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:05:55,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:05:55,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:05:55,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:55" (1/1) ... [2021-11-07 02:05:55,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6a5c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:55, skipping insertion in model container [2021-11-07 02:05:55,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:05:55" (1/1) ... [2021-11-07 02:05:55,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:05:55,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:05:55,695 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-07 02:05:55,708 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-07 02:05:55,737 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:05:55,744 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:05:56,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:56,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:56,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:56,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:56,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:56,934 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:56,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:56,939 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:56,939 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:57,362 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:05:57,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:05:57,364 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:05:57,365 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:05:57,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:05:57,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:05:57,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:05:57,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:05:57,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:05:57,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:05:57,540 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:05:57,642 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:57,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:57,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:05:57,817 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:05:57,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:05:57,923 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-07 02:05:57,924 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-07 02:05:57,927 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:05:57,928 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:05:58,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,055 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:05:58,056 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:05:58,056 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:05:58,057 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:05:58,058 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:05:58,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:05:58,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:05:58,060 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:05:58,060 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:05:58,061 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:05:58,081 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:05:58,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:05:58,277 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:05:58,303 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2021-11-07 02:05:58,303 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_b29d6959-2d02-471d-b082-b8b19b7a91b7/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2021-11-07 02:05:58,305 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:05:58,306 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:05:58,349 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:05:58,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:05:58,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:05:58,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:05:58,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:05:58,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:05:58,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:05:58,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:05:58,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:05:58,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:05:58,459 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:05:58,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:05:58,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:05:59,078 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:05:59,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59 WrapperNode [2021-11-07 02:05:59,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:05:59,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:05:59,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:05:59,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:05:59,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:05:59,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:05:59,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:05:59,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:05:59,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:05:59,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:05:59,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:05:59,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:05:59,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (1/1) ... [2021-11-07 02:05:59,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:05:59,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:05:59,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:05:59,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:05:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:05:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:05:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:05:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:05:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:05:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:05:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:05:59,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:05:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:05:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:05:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:05:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:05:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:05:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:05:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:06:13,729 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:06:13,729 INFO L299 CfgBuilder]: Removed 87 assume(true) statements. [2021-11-07 02:06:13,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:06:13 BoogieIcfgContainer [2021-11-07 02:06:13,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:06:13,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:06:13,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:06:13,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:06:13,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:05:55" (1/3) ... [2021-11-07 02:06:13,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206bcab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:06:13, skipping insertion in model container [2021-11-07 02:06:13,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:05:59" (2/3) ... [2021-11-07 02:06:13,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206bcab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:06:13, skipping insertion in model container [2021-11-07 02:06:13,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:06:13" (3/3) ... [2021-11-07 02:06:13,739 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2021-11-07 02:06:13,744 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:06:13,745 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 02:06:13,792 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:06:13,803 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 02:06:13,805 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 02:06:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 173 states have (on average 1.4855491329479769) internal successors, (257), 184 states have internal predecessors, (257), 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 02:06:13,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 02:06:13,840 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:06:13,840 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] [2021-11-07 02:06:13,841 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 02:06:13,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:06:13,854 INFO L85 PathProgramCache]: Analyzing trace with hash -27136647, now seen corresponding path program 1 times [2021-11-07 02:06:13,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:06:13,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161456368] [2021-11-07 02:06:13,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:06:13,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:06:13,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:06:13,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:06:13,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:06:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:18,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:06:18,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:06:18,313 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 02:06:18,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:06:18,470 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 02:06:18,471 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:06:18,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161456368] [2021-11-07 02:06:18,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161456368] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:06:18,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:06:18,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:06:18,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965574477] [2021-11-07 02:06:18,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:06:18,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:06:18,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:06:18,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:06:18,494 INFO L87 Difference]: Start difference. First operand has 185 states, 173 states have (on average 1.4855491329479769) internal successors, (257), 184 states have internal predecessors, (257), 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 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 02:06:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:06:18,525 INFO L93 Difference]: Finished difference Result 366 states and 509 transitions. [2021-11-07 02:06:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:06:18,527 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2021-11-07 02:06:18,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:06:18,537 INFO L225 Difference]: With dead ends: 366 [2021-11-07 02:06:18,537 INFO L226 Difference]: Without dead ends: 180 [2021-11-07 02:06:18,540 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 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 02:06:18,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-07 02:06:18,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-11-07 02:06:18,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 169 states have (on average 1.3609467455621302) internal successors, (230), 179 states have internal predecessors, (230), 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 02:06:18,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 230 transitions. [2021-11-07 02:06:18,588 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 230 transitions. Word has length 38 [2021-11-07 02:06:18,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:06:18,588 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 230 transitions. [2021-11-07 02:06:18,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 02:06:18,589 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 230 transitions. [2021-11-07 02:06:18,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 02:06:18,591 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:06:18,591 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] [2021-11-07 02:06:18,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 02:06:18,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:06:18,808 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 02:06:18,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:06:18,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2001073661, now seen corresponding path program 1 times [2021-11-07 02:06:18,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:06:18,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031533222] [2021-11-07 02:06:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:06:18,813 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:06:18,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:06:18,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:06:18,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:06:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:22,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:06:22,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:06:23,091 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 02:06:23,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:06:23,282 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 02:06:23,283 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:06:23,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031533222] [2021-11-07 02:06:23,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031533222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:06:23,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:06:23,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:06:23,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908079560] [2021-11-07 02:06:23,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:06:23,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:06:23,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:06:23,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:06:23,286 INFO L87 Difference]: Start difference. First operand 180 states and 230 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 02:06:23,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:06:23,653 INFO L93 Difference]: Finished difference Result 334 states and 426 transitions. [2021-11-07 02:06:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:06:23,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2021-11-07 02:06:23,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:06:23,656 INFO L225 Difference]: With dead ends: 334 [2021-11-07 02:06:23,656 INFO L226 Difference]: Without dead ends: 180 [2021-11-07 02:06:23,657 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 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 02:06:23,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-07 02:06:23,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-11-07 02:06:23,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 169 states have (on average 1.3431952662721893) internal successors, (227), 179 states have internal predecessors, (227), 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 02:06:23,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 227 transitions. [2021-11-07 02:06:23,682 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 227 transitions. Word has length 38 [2021-11-07 02:06:23,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:06:23,684 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 227 transitions. [2021-11-07 02:06:23,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 02:06:23,684 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 227 transitions. [2021-11-07 02:06:23,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 02:06:23,693 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:06:23,693 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] [2021-11-07 02:06:23,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:06:23,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:06:23,915 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 02:06:23,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:06:23,915 INFO L85 PathProgramCache]: Analyzing trace with hash -58490273, now seen corresponding path program 1 times [2021-11-07 02:06:23,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:06:23,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267630914] [2021-11-07 02:06:23,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:06:23,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:06:23,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:06:23,922 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:06:23,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:06:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:28,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:06:28,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:06:28,297 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 02:06:28,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:06:28,452 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 02:06:28,453 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:06:28,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267630914] [2021-11-07 02:06:28,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267630914] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:06:28,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:06:28,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:06:28,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541527279] [2021-11-07 02:06:28,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:06:28,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:06:28,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:06:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:06:28,455 INFO L87 Difference]: Start difference. First operand 180 states and 227 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:06:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:06:28,886 INFO L93 Difference]: Finished difference Result 395 states and 506 transitions. [2021-11-07 02:06:28,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:06:28,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2021-11-07 02:06:28,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:06:28,891 INFO L225 Difference]: With dead ends: 395 [2021-11-07 02:06:28,892 INFO L226 Difference]: Without dead ends: 240 [2021-11-07 02:06:28,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 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 02:06:28,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-07 02:06:28,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 192. [2021-11-07 02:06:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 181 states have (on average 1.3204419889502763) internal successors, (239), 191 states have internal predecessors, (239), 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 02:06:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 239 transitions. [2021-11-07 02:06:28,906 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 239 transitions. Word has length 50 [2021-11-07 02:06:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:06:28,907 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 239 transitions. [2021-11-07 02:06:28,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 02:06:28,907 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 239 transitions. [2021-11-07 02:06:28,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 02:06:28,908 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:06:28,908 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] [2021-11-07 02:06:28,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:06:29,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:06:29,109 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 02:06:29,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:06:29,110 INFO L85 PathProgramCache]: Analyzing trace with hash 785515229, now seen corresponding path program 1 times [2021-11-07 02:06:29,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:06:29,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553064921] [2021-11-07 02:06:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:06:29,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:06:29,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:06:29,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:06:29,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:06:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:33,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 02:06:33,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:06:33,375 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 02:06:33,744 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 02:06:33,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:06:34,025 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 02:06:34,263 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 02:06:34,263 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:06:34,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553064921] [2021-11-07 02:06:34,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553064921] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:06:34,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:06:34,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 02:06:34,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166655083] [2021-11-07 02:06:34,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 02:06:34,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:06:34,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 02:06:34,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:06:34,266 INFO L87 Difference]: Start difference. First operand 192 states and 239 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 02:06:41,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:06:41,605 INFO L93 Difference]: Finished difference Result 547 states and 687 transitions. [2021-11-07 02:06:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 02:06:41,606 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 50 [2021-11-07 02:06:41,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:06:41,608 INFO L225 Difference]: With dead ends: 547 [2021-11-07 02:06:41,608 INFO L226 Difference]: Without dead ends: 382 [2021-11-07 02:06:41,609 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2021-11-07 02:06:41,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-11-07 02:06:41,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 278. [2021-11-07 02:06:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 267 states have (on average 1.348314606741573) internal successors, (360), 277 states have internal predecessors, (360), 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 02:06:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 360 transitions. [2021-11-07 02:06:41,630 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 360 transitions. Word has length 50 [2021-11-07 02:06:41,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:06:41,630 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 360 transitions. [2021-11-07 02:06:41,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 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 02:06:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 360 transitions. [2021-11-07 02:06:41,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 02:06:41,632 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:06:41,632 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] [2021-11-07 02:06:41,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:06:41,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:06:41,854 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 02:06:41,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:06:41,855 INFO L85 PathProgramCache]: Analyzing trace with hash 880620184, now seen corresponding path program 1 times [2021-11-07 02:06:41,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:06:41,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044994696] [2021-11-07 02:06:41,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:06:41,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:06:41,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:06:41,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:06:41,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:06:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:45,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:06:45,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:06:46,286 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 02:06:46,287 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 02:06:46,505 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 02:06:46,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:06:47,006 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 02:06:47,007 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:06:47,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044994696] [2021-11-07 02:06:47,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044994696] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:06:47,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:06:47,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 02:06:47,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280470692] [2021-11-07 02:06:47,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:06:47,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:06:47,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:06:47,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:06:47,009 INFO L87 Difference]: Start difference. First operand 278 states and 360 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 02:06:54,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:06:54,051 INFO L93 Difference]: Finished difference Result 859 states and 1103 transitions. [2021-11-07 02:06:54,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:06:54,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 57 [2021-11-07 02:06:54,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:06:54,058 INFO L225 Difference]: With dead ends: 859 [2021-11-07 02:06:54,058 INFO L226 Difference]: Without dead ends: 601 [2021-11-07 02:06:54,059 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:06:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-11-07 02:06:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 339. [2021-11-07 02:06:54,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3353658536585367) internal successors, (438), 338 states have internal predecessors, (438), 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 02:06:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 438 transitions. [2021-11-07 02:06:54,080 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 438 transitions. Word has length 57 [2021-11-07 02:06:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:06:54,086 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 438 transitions. [2021-11-07 02:06:54,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 02:06:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 438 transitions. [2021-11-07 02:06:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 02:06:54,088 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:06:54,088 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] [2021-11-07 02:06:54,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:06:54,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:06:54,289 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 02:06:54,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:06:54,289 INFO L85 PathProgramCache]: Analyzing trace with hash -964746982, now seen corresponding path program 1 times [2021-11-07 02:06:54,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:06:54,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325702591] [2021-11-07 02:06:54,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:06:54,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:06:54,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:06:54,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:06:54,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:06:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:58,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:06:58,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:06:58,710 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 02:06:58,710 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 02:06:59,300 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 02:06:59,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:06:59,860 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 02:06:59,860 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:06:59,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325702591] [2021-11-07 02:06:59,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325702591] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:06:59,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:06:59,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 02:06:59,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318083453] [2021-11-07 02:06:59,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 02:06:59,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:06:59,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 02:06:59,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:06:59,863 INFO L87 Difference]: Start difference. First operand 339 states and 438 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 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 02:07:15,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:07:15,304 INFO L93 Difference]: Finished difference Result 1077 states and 1340 transitions. [2021-11-07 02:07:15,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 02:07:15,307 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 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 57 [2021-11-07 02:07:15,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:07:15,310 INFO L225 Difference]: With dead ends: 1077 [2021-11-07 02:07:15,311 INFO L226 Difference]: Without dead ends: 659 [2021-11-07 02:07:15,312 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 02:07:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2021-11-07 02:07:15,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 328. [2021-11-07 02:07:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 317 states have (on average 1.277602523659306) internal successors, (405), 327 states have internal predecessors, (405), 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 02:07:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 405 transitions. [2021-11-07 02:07:15,330 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 405 transitions. Word has length 57 [2021-11-07 02:07:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:07:15,330 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 405 transitions. [2021-11-07 02:07:15,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 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 02:07:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 405 transitions. [2021-11-07 02:07:15,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 02:07:15,332 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:07:15,332 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] [2021-11-07 02:07:15,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:07:15,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:07:15,555 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 02:07:15,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:07:15,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1740889660, now seen corresponding path program 1 times [2021-11-07 02:07:15,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:07:15,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401857766] [2021-11-07 02:07:15,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:07:15,558 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:07:15,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:07:15,559 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:07:15,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29d6959-2d02-471d-b082-b8b19b7a91b7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:07:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:07:19,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1869 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 02:07:19,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:07:20,348 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:07:20,348 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 02:07:20,589 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 02:07:20,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:07:30,929 WARN L207 SmtUtils]: Spent 9.76 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 02:07:30,934 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 02:07:30,935 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