./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF --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 f6da3aa04741dedcde0205dc04a8136a445ebd58b30adbc60377ecda455d64bb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:05,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:05,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:06,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:06,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:06,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:06,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:06,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:06,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:06,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:06,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:06,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:06,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:06,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:06,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:06,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:06,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:06,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:06,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:06,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:06,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:06,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:06,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:06,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:06,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:06,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:06,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:06,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:06,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:06,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:06,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:06,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:06,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:06,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:06,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:06,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:06,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:06,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:06,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:06,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:06,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:06,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:27:06,164 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:06,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:06,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:06,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:06,166 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:06,167 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:06,167 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:06,167 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:27:06,173 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:06,174 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:06,175 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:27:06,175 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:27:06,175 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:06,176 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:27:06,176 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:27:06,176 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:27:06,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:06,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:27:06,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:06,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:06,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:06,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:06,178 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:06,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:06,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:06,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:06,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:06,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:06,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:06,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:06,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:06,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:06,183 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:27:06,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:27:06,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:06,183 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:06,183 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:06,184 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_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6da3aa04741dedcde0205dc04a8136a445ebd58b30adbc60377ecda455d64bb [2021-11-12 22:27:06,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:06,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:06,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:06,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:06,477 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:06,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i [2021-11-12 22:27:06,555 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data/98d22107e/4d17421586be4e38bce0d8ef5e09df13/FLAG291157cf4 [2021-11-12 22:27:07,355 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:07,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i [2021-11-12 22:27:07,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data/98d22107e/4d17421586be4e38bce0d8ef5e09df13/FLAG291157cf4 [2021-11-12 22:27:07,868 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data/98d22107e/4d17421586be4e38bce0d8ef5e09df13 [2021-11-12 22:27:07,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:07,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:07,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:07,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:07,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:07,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:07" (1/1) ... [2021-11-12 22:27:07,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3acdbffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:07, skipping insertion in model container [2021-11-12 22:27:07,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:07" (1/1) ... [2021-11-12 22:27:07,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:08,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:08,324 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_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4499,4512] [2021-11-12 22:27:08,331 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_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4559,4572] [2021-11-12 22:27:08,355 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:27:08,361 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:27:09,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:09,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:09,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:09,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:09,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:09,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:09,309 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:09,311 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:09,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:09,824 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:27:09,825 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:27:09,826 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:27:09,828 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:27:09,829 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:27:09,830 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:27:09,831 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:27:09,834 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:27:09,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:27:09,841 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:27:10,035 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:27:10,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:10,153 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:10,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:10,295 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) [2021-11-12 22:27:10,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1996e721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:10, skipping insertion in model container [2021-11-12 22:27:10,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:10,297 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:27:10,300 INFO L158 Benchmark]: Toolchain (without parser) took 2426.05ms. Allocated memory is still 127.9MB. Free memory was 84.4MB in the beginning and 50.7MB in the end (delta: 33.7MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2021-11-12 22:27:10,300 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:27:10,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2423.21ms. Allocated memory is still 127.9MB. Free memory was 84.2MB in the beginning and 50.7MB in the end (delta: 33.6MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2021-11-12 22:27:10,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2423.21ms. Allocated memory is still 127.9MB. Free memory was 84.2MB in the beginning and 50.7MB in the end (delta: 33.6MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * 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_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF --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 f6da3aa04741dedcde0205dc04a8136a445ebd58b30adbc60377ecda455d64bb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:12,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:12,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:12,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:12,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:12,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:12,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:12,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:12,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:12,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:12,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:12,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:12,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:12,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:12,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:12,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:12,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:12,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:12,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:12,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:12,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:12,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:12,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:12,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:12,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:12,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:12,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:12,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:12,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:12,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:12,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:12,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:12,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:12,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:12,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:12,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:12,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:12,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:12,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:12,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:12,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:12,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:27:12,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:12,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:12,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:12,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:12,750 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:12,750 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:12,750 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:12,750 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:12,751 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:12,751 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:12,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:12,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:12,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:12,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:12,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:12,754 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:12,754 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:27:12,755 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:27:12,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:12,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:12,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:12,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:12,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:27:12,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:12,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:12,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:12,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:12,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:12,757 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:27:12,758 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:27:12,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:12,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:12,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:12,758 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_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6da3aa04741dedcde0205dc04a8136a445ebd58b30adbc60377ecda455d64bb [2021-11-12 22:27:13,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:13,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:13,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:13,168 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:13,168 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:13,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i [2021-11-12 22:27:13,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data/d3b33c36f/c8eb0e240cd9433b974b98d48ed3c0c2/FLAG8fd5379c5 [2021-11-12 22:27:14,159 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:14,160 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i [2021-11-12 22:27:14,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data/d3b33c36f/c8eb0e240cd9433b974b98d48ed3c0c2/FLAG8fd5379c5 [2021-11-12 22:27:14,581 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/data/d3b33c36f/c8eb0e240cd9433b974b98d48ed3c0c2 [2021-11-12 22:27:14,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:14,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:14,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:14,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:14,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:14,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:14" (1/1) ... [2021-11-12 22:27:14,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7905b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:14, skipping insertion in model container [2021-11-12 22:27:14,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:14" (1/1) ... [2021-11-12 22:27:14,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:14,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:15,015 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_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4499,4512] [2021-11-12 22:27:15,023 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_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4559,4572] [2021-11-12 22:27:15,056 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:27:15,064 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:27:16,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:16,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:16,475 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:16,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:16,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:16,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:16,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:16,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:16,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:16,978 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:27:16,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:27:16,980 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:27:16,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:27:16,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:27:16,984 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:27:16,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:27:16,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:27:16,986 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:27:16,987 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:27:17,177 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:27:17,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,336 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:17,508 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:27:17,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:17,581 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_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4499,4512] [2021-11-12 22:27:17,581 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_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4559,4572] [2021-11-12 22:27:17,582 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:27:17,583 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:27:17,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,637 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,668 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:27:17,669 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:27:17,669 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:27:17,670 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:27:17,671 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:27:17,671 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:27:17,672 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:27:17,672 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:27:17,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:27:17,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:27:17,692 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:27:17,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:17,828 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:27:17,841 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_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4499,4512] [2021-11-12 22:27:17,841 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_4b54f687-afca-4453-b0fb-ed3dd7895577/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be16_harness.i[4559,4572] [2021-11-12 22:27:17,843 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:27:17,843 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:27:17,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,873 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,878 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,880 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:17,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:27:17,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:27:17,943 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:27:17,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:27:17,944 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:27:17,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:27:17,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:27:17,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:27:17,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:27:17,946 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:27:17,966 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:27:18,022 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:18,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:27:18,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:18,321 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:27:18,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18 WrapperNode [2021-11-12 22:27:18,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:18,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:18,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:27:18,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:27:18,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:18,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:27:18,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:27:18,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:27:18,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:27:18,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:27:18,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:27:18,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:27:18,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (1/1) ... [2021-11-12 22:27:18,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:18,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:27:18,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:27:18,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:27:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2021-11-12 22:27:18,930 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2021-11-12 22:27:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-12 22:27:18,930 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-12 22:27:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure ntohs [2021-11-12 22:27:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:27:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 22:27:18,931 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 22:27:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:27:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:27:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:27:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-12 22:27:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:27:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:27:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:27:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:27:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:27:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh16 [2021-11-12 22:27:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh16 [2021-11-12 22:27:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:27:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:27:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:27:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:27:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:27:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:27:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:27:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:27:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:27:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:27:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 22:27:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 22:27:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:27:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:27:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:27:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:27:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-12 22:27:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-12 22:27:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:27:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:27:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:27:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:27:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:27:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:27:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:27:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:27:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-12 22:27:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-12 22:27:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-12 22:27:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 22:27:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 22:27:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:27:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:27:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:27:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:27:36,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:27:36,579 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:27:36,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:36 BoogieIcfgContainer [2021-11-12 22:27:36,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:27:36,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:27:36,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:27:36,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:27:36,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:27:14" (1/3) ... [2021-11-12 22:27:36,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c560c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:36, skipping insertion in model container [2021-11-12 22:27:36,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:18" (2/3) ... [2021-11-12 22:27:36,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c560c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:36, skipping insertion in model container [2021-11-12 22:27:36,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:36" (3/3) ... [2021-11-12 22:27:36,593 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be16_harness.i [2021-11-12 22:27:36,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:27:36,599 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:27:36,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:27:36,666 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 [2021-11-12 22:27:36,666 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:27:36,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 98 states have internal predecessors, (119), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-11-12 22:27:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-12 22:27:36,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:36,701 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:36,701 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:27:36,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:36,707 INFO L85 PathProgramCache]: Analyzing trace with hash -995370876, now seen corresponding path program 1 times [2021-11-12 22:27:36,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:36,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46744302] [2021-11-12 22:27:36,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:36,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:36,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:36,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:36,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:27:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:41,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:27:41,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-12 22:27:41,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:41,996 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-11-12 22:27:41,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:41,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46744302] [2021-11-12 22:27:42,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46744302] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:27:42,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:27:42,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 22:27:42,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159795138] [2021-11-12 22:27:42,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:42,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:27:42,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:42,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:27:42,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:27:42,051 INFO L87 Difference]: Start difference. First operand has 158 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 98 states have internal predecessors, (119), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-12 22:27:42,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:42,131 INFO L93 Difference]: Finished difference Result 309 states and 450 transitions. [2021-11-12 22:27:42,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:27:42,134 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2021-11-12 22:27:42,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:42,151 INFO L225 Difference]: With dead ends: 309 [2021-11-12 22:27:42,151 INFO L226 Difference]: Without dead ends: 152 [2021-11-12 22:27:42,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:27:42,168 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:42,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 6.07ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:27:42,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-11-12 22:27:42,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-11-12 22:27:42,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-11-12 22:27:42,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 207 transitions. [2021-11-12 22:27:42,241 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 207 transitions. Word has length 124 [2021-11-12 22:27:42,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:42,243 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 207 transitions. [2021-11-12 22:27:42,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-12 22:27:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2021-11-12 22:27:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-12 22:27:42,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:42,248 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:42,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:42,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:42,449 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:27:42,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:42,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1202675202, now seen corresponding path program 1 times [2021-11-12 22:27:42,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:42,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657076240] [2021-11-12 22:27:42,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:42,455 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:42,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:42,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:42,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:27:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:46,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:27:46,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-11-12 22:27:47,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:47,922 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-11-12 22:27:47,923 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:27:47,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657076240] [2021-11-12 22:27:47,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657076240] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:27:47,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:27:47,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 22:27:47,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564660246] [2021-11-12 22:27:47,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:47,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:27:47,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:27:47,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:27:47,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:27:47,926 INFO L87 Difference]: Start difference. First operand 152 states and 207 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-12 22:27:48,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:48,410 INFO L93 Difference]: Finished difference Result 280 states and 393 transitions. [2021-11-12 22:27:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:27:48,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 124 [2021-11-12 22:27:48,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:48,418 INFO L225 Difference]: With dead ends: 280 [2021-11-12 22:27:48,418 INFO L226 Difference]: Without dead ends: 155 [2021-11-12 22:27:48,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:27:48,420 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 51 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 363.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.33ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 439.31ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:48,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 659 Invalid, 86 Unknown, 0 Unchecked, 8.33ms Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 439.31ms Time] [2021-11-12 22:27:48,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-12 22:27:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-11-12 22:27:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 94 states have (on average 1.2127659574468086) internal successors, (114), 96 states have internal predecessors, (114), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (55), 47 states have call predecessors, (55), 47 states have call successors, (55) [2021-11-12 22:27:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 217 transitions. [2021-11-12 22:27:48,462 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 217 transitions. Word has length 124 [2021-11-12 22:27:48,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:48,464 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 217 transitions. [2021-11-12 22:27:48,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-12 22:27:48,464 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 217 transitions. [2021-11-12 22:27:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-12 22:27:48,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:48,474 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:48,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:27:48,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:27:48,694 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:27:48,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:48,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2041589987, now seen corresponding path program 1 times [2021-11-12 22:27:48,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:27:48,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922509644] [2021-11-12 22:27:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:48,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:27:48,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:27:48,702 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:27:48,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b54f687-afca-4453-b0fb-ed3dd7895577/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:27:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:52,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1961 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-12 22:27:52,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:27:54,022 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:27:54,023 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 [2021-11-12 22:27:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 76 proven. 4 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-12 22:27:54,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:27:55,889 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-12 22:27:55,890 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 129 treesize of output 1 [2021-11-12 22:28:06,418 WARN L227 SmtUtils]: Spent 9.98s on a formula simplification. DAG size of input: 523 DAG size of output: 269 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 22:28:06,426 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-12 22:28:06,427 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