./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_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_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/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_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/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_af3453c8-9a04-43da-9781-c28c4202b60f/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 b2f52dc569bf800e437197605f33d1f95221de4e070e12ec17def0de8ea71b9a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:22:05,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:22:05,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:22:05,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:22:05,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:22:05,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:22:05,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:22:05,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:22:05,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:22:05,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:22:05,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:22:05,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:22:05,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:22:05,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:22:05,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:22:05,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:22:05,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:22:05,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:22:05,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:22:05,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:22:05,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:22:05,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:22:05,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:22:05,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:22:06,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:22:06,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:22:06,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:22:06,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:22:06,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:22:06,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:22:06,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:22:06,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:22:06,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:22:06,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:22:06,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:22:06,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:22:06,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:22:06,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:22:06,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:22:06,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:22:06,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:22:06,025 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:22:06,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:22:06,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:22:06,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:22:06,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:22:06,067 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:22:06,068 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:22:06,068 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:22:06,068 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:22:06,075 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:22:06,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:22:06,076 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:22:06,076 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:22:06,077 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:22:06,077 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:22:06,078 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:22:06,079 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:22:06,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:22:06,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:22:06,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:22:06,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:22:06,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:22:06,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:22:06,082 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:22:06,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:22:06,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:22:06,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:22:06,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:22:06,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:22:06,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:22:06,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:22:06,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:22:06,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:22:06,084 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:22:06,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:22:06,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:22:06,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:22:06,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:22:06,086 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_af3453c8-9a04-43da-9781-c28c4202b60f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2f52dc569bf800e437197605f33d1f95221de4e070e12ec17def0de8ea71b9a [2021-11-12 22:22:06,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:22:06,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:22:06,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:22:06,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:22:06,456 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:22:06,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i [2021-11-12 22:22:06,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data/f7f8dbfdb/1187f9417be141719a030c82378380fd/FLAG5f8a51d14 [2021-11-12 22:22:07,626 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:22:07,627 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i [2021-11-12 22:22:07,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data/f7f8dbfdb/1187f9417be141719a030c82378380fd/FLAG5f8a51d14 [2021-11-12 22:22:08,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data/f7f8dbfdb/1187f9417be141719a030c82378380fd [2021-11-12 22:22:08,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:22:08,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:22:08,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:22:08,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:22:08,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:22:08,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:22:08" (1/1) ... [2021-11-12 22:22:08,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f50b92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:08, skipping insertion in model container [2021-11-12 22:22:08,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:22:08" (1/1) ... [2021-11-12 22:22:08,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:22:08,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:22:08,589 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_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4500,4513] [2021-11-12 22:22:08,600 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_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4560,4573] [2021-11-12 22:22:08,627 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:22:08,636 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:22:09,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:09,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:09,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:09,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:09,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:09,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:09,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:09,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:09,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:10,241 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:22:10,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:22:10,244 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:22:10,245 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:22:10,247 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:22:10,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:22:10,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:22:10,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:22:10,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:22:10,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:22:10,406 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:22:10,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:10,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:10,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:22:10,665 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 22:22:10,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53f2be47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:10, skipping insertion in model container [2021-11-12 22:22:10,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:22:10,667 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:22:10,670 INFO L158 Benchmark]: Toolchain (without parser) took 2634.62ms. Allocated memory is still 119.5MB. Free memory was 75.5MB in the beginning and 81.5MB in the end (delta: -5.9MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2021-11-12 22:22:10,671 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:22:10,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2629.38ms. Allocated memory is still 119.5MB. Free memory was 75.5MB in the beginning and 81.5MB in the end (delta: -5.9MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2021-11-12 22:22:10,674 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2629.38ms. Allocated memory is still 119.5MB. Free memory was 75.5MB in the beginning and 81.5MB in the end (delta: -5.9MB). Peak memory consumption was 42.4MB. 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_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/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_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/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_af3453c8-9a04-43da-9781-c28c4202b60f/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 b2f52dc569bf800e437197605f33d1f95221de4e070e12ec17def0de8ea71b9a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:22:13,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:22:13,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:22:13,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:22:13,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:22:13,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:22:13,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:22:13,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:22:13,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:22:13,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:22:13,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:22:13,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:22:13,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:22:13,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:22:13,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:22:13,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:22:13,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:22:13,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:22:13,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:22:13,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:22:13,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:22:13,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:22:13,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:22:13,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:22:13,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:22:13,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:22:13,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:22:13,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:22:13,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:22:13,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:22:13,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:22:13,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:22:13,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:22:13,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:22:13,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:22:13,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:22:13,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:22:13,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:22:13,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:22:13,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:22:13,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:22:13,269 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:22:13,317 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:22:13,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:22:13,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:22:13,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:22:13,319 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:22:13,319 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:22:13,319 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:22:13,319 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:22:13,320 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:22:13,320 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:22:13,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:22:13,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:22:13,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:22:13,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:22:13,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:22:13,324 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:22:13,324 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:22:13,324 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:22:13,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:22:13,325 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:22:13,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:22:13,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:22:13,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:22:13,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:22:13,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:22:13,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:22:13,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:22:13,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:22:13,327 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:22:13,327 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:22:13,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:22:13,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:22:13,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:22:13,328 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_af3453c8-9a04-43da-9781-c28c4202b60f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2f52dc569bf800e437197605f33d1f95221de4e070e12ec17def0de8ea71b9a [2021-11-12 22:22:13,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:22:13,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:22:13,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:22:13,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:22:13,839 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:22:13,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i [2021-11-12 22:22:13,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data/0939411c3/adb917885b4240e5ae437a0ce4fe79c3/FLAGcbf5a0fd1 [2021-11-12 22:22:15,047 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:22:15,048 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i [2021-11-12 22:22:15,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data/0939411c3/adb917885b4240e5ae437a0ce4fe79c3/FLAGcbf5a0fd1 [2021-11-12 22:22:15,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/data/0939411c3/adb917885b4240e5ae437a0ce4fe79c3 [2021-11-12 22:22:15,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:22:15,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:22:15,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:22:15,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:22:15,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:22:15,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:22:15" (1/1) ... [2021-11-12 22:22:15,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2568c2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:15, skipping insertion in model container [2021-11-12 22:22:15,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:22:15" (1/1) ... [2021-11-12 22:22:15,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:22:15,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:22:15,934 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_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4500,4513] [2021-11-12 22:22:15,945 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_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4560,4573] [2021-11-12 22:22:15,983 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:22:15,992 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:22:17,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:17,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:17,226 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:17,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:17,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:17,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:17,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:17,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:17,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:17,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:22:17,819 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:22:17,821 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:22:17,824 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:22:17,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:22:17,837 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:22:17,840 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:22:17,842 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:22:17,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:22:17,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:22:18,095 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:22:18,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:22:18,476 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:22:18,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:22:18,533 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_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4500,4513] [2021-11-12 22:22:18,534 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_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4560,4573] [2021-11-12 22:22:18,536 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:22:18,537 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:22:18,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,623 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:22:18,696 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:22:18,698 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:22:18,699 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:22:18,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:22:18,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:22:18,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:22:18,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:22:18,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:22:18,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:22:18,745 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:22:18,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,835 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:22:18,903 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:22:18,958 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_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4500,4513] [2021-11-12 22:22:18,959 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_af3453c8-9a04-43da-9781-c28c4202b60f/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_c_str_harness.i[4560,4573] [2021-11-12 22:22:18,961 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:22:18,961 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:22:18,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,996 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:18,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:19,004 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:19,004 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:19,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:19,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:19,041 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:22:19,042 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:22:19,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:22:19,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:22:19,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:22:19,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:22:19,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:22:19,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:22:19,046 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:22:19,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:22:19,108 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:22:19,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:19,252 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:22:19,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:22:19,756 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:22:19,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19 WrapperNode [2021-11-12 22:22:19,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:22:19,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:22:19,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:22:19,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:22:19,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:19,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:20,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:22:20,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:22:20,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:22:20,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:22:20,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:20,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:20,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:20,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:20,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:20,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:20,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:20,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:22:20,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:22:20,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:22:20,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:22:20,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (1/1) ... [2021-11-12 22:22:20,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:22:20,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:22:20,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:22:20,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:22:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-12 22:22:20,325 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-12 22:22:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:22:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 22:22:20,326 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 22:22:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:22:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:22:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:22:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:22:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:22:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:22:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:22:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:22:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:22:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:22:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:22:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:22:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:22:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:22:20,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:22:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:22:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:22:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:22:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:22:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 22:22:20,361 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 22:22:34,785 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:22:34,785 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:22:34,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:22:34 BoogieIcfgContainer [2021-11-12 22:22:34,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:22:34,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:22:34,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:22:34,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:22:34,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:22:15" (1/3) ... [2021-11-12 22:22:34,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6843892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:22:34, skipping insertion in model container [2021-11-12 22:22:34,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:22:19" (2/3) ... [2021-11-12 22:22:34,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6843892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:22:34, skipping insertion in model container [2021-11-12 22:22:34,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:22:34" (3/3) ... [2021-11-12 22:22:34,795 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_c_str_harness.i [2021-11-12 22:22:34,800 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:22:34,800 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:22:34,848 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:22:34,854 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 22:22:34,854 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:22:34,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 52 states have internal predecessors, (63), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-12 22:22:34,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-12 22:22:34,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:34,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:34,879 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:22:34,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:34,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1120951196, now seen corresponding path program 1 times [2021-11-12 22:22:34,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:22:34,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938156660] [2021-11-12 22:22:34,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:34,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:22:34,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:22:34,948 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:22:34,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:22:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:39,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1700 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:22:39,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:22:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:39,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:22:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:40,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:22:40,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938156660] [2021-11-12 22:22:40,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938156660] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:40,023 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:40,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 22:22:40,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642845556] [2021-11-12 22:22:40,025 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:40,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:22:40,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:22:40,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:22:40,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:22:40,058 INFO L87 Difference]: Start difference. First operand has 75 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 52 states have internal predecessors, (63), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-12 22:22:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:40,177 INFO L93 Difference]: Finished difference Result 143 states and 192 transitions. [2021-11-12 22:22:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:22:40,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2021-11-12 22:22:40,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:40,188 INFO L225 Difference]: With dead ends: 143 [2021-11-12 22:22:40,188 INFO L226 Difference]: Without dead ends: 70 [2021-11-12 22:22:40,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:22:40,195 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 1 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.13ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.50ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:40,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 268 Invalid, 10 Unknown, 0 Unchecked, 4.13ms Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 80.50ms Time] [2021-11-12 22:22:40,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-12 22:22:40,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2021-11-12 22:22:40,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 48 states have internal predecessors, (55), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-12 22:22:40,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2021-11-12 22:22:40,239 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 20 [2021-11-12 22:22:40,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:40,240 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2021-11-12 22:22:40,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-12 22:22:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2021-11-12 22:22:40,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-12 22:22:40,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:40,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:40,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 22:22:40,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:22:40,443 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:22:40,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:40,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1379116634, now seen corresponding path program 1 times [2021-11-12 22:22:40,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:22:40,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037635736] [2021-11-12 22:22:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:40,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:22:40,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:22:40,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:22:40,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:22:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:44,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:22:44,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:22:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:44,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:22:45,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:45,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:22:45,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037635736] [2021-11-12 22:22:45,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037635736] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:45,165 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:45,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 22:22:45,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037872738] [2021-11-12 22:22:45,166 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:45,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:22:45,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:22:45,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:22:45,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:22:45,168 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:22:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:45,369 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2021-11-12 22:22:45,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:22:45,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-11-12 22:22:45,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:45,373 INFO L225 Difference]: With dead ends: 115 [2021-11-12 22:22:45,374 INFO L226 Difference]: Without dead ends: 72 [2021-11-12 22:22:45,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:22:45,377 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 16 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.27ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:45,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 288 Invalid, 23 Unknown, 0 Unchecked, 2.92ms Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 181.27ms Time] [2021-11-12 22:22:45,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-12 22:22:45,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-11-12 22:22:45,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.1875) internal successors, (57), 51 states have internal predecessors, (57), 16 states have call successors, (16), 6 states have call predecessors, (16), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2021-11-12 22:22:45,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2021-11-12 22:22:45,410 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 20 [2021-11-12 22:22:45,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:45,410 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2021-11-12 22:22:45,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:22:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2021-11-12 22:22:45,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-12 22:22:45,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:45,413 INFO L514 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] [2021-11-12 22:22:45,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:22:45,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:22:45,635 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:22:45,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:45,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2118891841, now seen corresponding path program 1 times [2021-11-12 22:22:45,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:22:45,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148001649] [2021-11-12 22:22:45,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:45,643 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:22:45,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:22:45,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:22:45,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:22:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:49,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1705 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:22:49,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:22:49,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:49,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:22:50,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:50,160 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:22:50,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148001649] [2021-11-12 22:22:50,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148001649] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:50,160 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:50,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-12 22:22:50,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136857297] [2021-11-12 22:22:50,161 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:50,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 22:22:50,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:22:50,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 22:22:50,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:22:50,162 INFO L87 Difference]: Start difference. First operand 72 states and 88 transitions. Second operand has 12 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-12 22:22:50,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:50,439 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2021-11-12 22:22:50,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:22:50,440 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-11-12 22:22:50,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:50,442 INFO L225 Difference]: With dead ends: 84 [2021-11-12 22:22:50,442 INFO L226 Difference]: Without dead ends: 82 [2021-11-12 22:22:50,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-12 22:22:50,444 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 17 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 151.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.45ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 194.58ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:50,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 781 Invalid, 73 Unknown, 0 Unchecked, 6.45ms Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 194.58ms Time] [2021-11-12 22:22:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-12 22:22:50,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2021-11-12 22:22:50,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 58 states have internal predecessors, (63), 17 states have call successors, (17), 7 states have call predecessors, (17), 9 states have return successors, (18), 15 states have call predecessors, (18), 15 states have call successors, (18) [2021-11-12 22:22:50,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 98 transitions. [2021-11-12 22:22:50,457 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 98 transitions. Word has length 22 [2021-11-12 22:22:50,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:50,458 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 98 transitions. [2021-11-12 22:22:50,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-12 22:22:50,458 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2021-11-12 22:22:50,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 22:22:50,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:50,460 INFO L514 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] [2021-11-12 22:22:50,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:22:50,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:22:50,674 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:22:50,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:50,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1628796537, now seen corresponding path program 1 times [2021-11-12 22:22:50,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:22:50,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997247299] [2021-11-12 22:22:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:50,680 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:22:50,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:22:50,680 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:22:50,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3453c8-9a04-43da-9781-c28c4202b60f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:24:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:07,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1714 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:24:07,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:07,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:24:07,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:24:07,701 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:24:07,701 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:24:07,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:24:07,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:24:07,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 22:24:07,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:24:07,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 87 [2021-11-12 22:24:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:10,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:11,597 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 437 treesize of output 423