./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:15:40,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:15:40,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:15:41,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:15:41,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:15:41,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:15:41,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:15:41,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:15:41,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:15:41,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:15:41,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:15:41,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:15:41,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:15:41,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:15:41,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:15:41,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:15:41,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:15:41,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:15:41,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:15:41,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:15:41,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:15:41,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:15:41,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:15:41,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:15:41,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:15:41,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:15:41,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:15:41,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:15:41,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:15:41,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:15:41,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:15:41,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:15:41,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:15:41,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:15:41,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:15:41,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:15:41,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:15:41,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:15:41,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:15:41,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:15:41,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:15:41,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:15:41,141 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:15:41,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:15:41,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:15:41,145 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:15:41,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:15:41,146 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:15:41,147 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:15:41,147 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:15:41,150 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:15:41,151 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:15:41,151 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:15:41,151 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:15:41,151 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:15:41,152 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:15:41,152 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:15:41,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:15:41,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:15:41,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:15:41,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:15:41,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:15:41,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:15:41,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:15:41,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:15:41,155 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:15:41,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:15:41,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:15:41,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:15:41,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:15:41,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:15:41,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:15:41,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:15:41,157 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:15:41,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:15:41,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:15:41,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:15:41,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:15:41,159 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 [2021-11-07 01:15:41,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:15:41,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:15:41,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:15:41,488 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:15:41,489 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:15:41,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2021-11-07 01:15:41,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data/1bdc24b5d/58f4f557cf4b43ce85b18dd659993d68/FLAGbe4966165 [2021-11-07 01:15:42,443 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:15:42,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2021-11-07 01:15:42,501 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data/1bdc24b5d/58f4f557cf4b43ce85b18dd659993d68/FLAGbe4966165 [2021-11-07 01:15:42,924 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data/1bdc24b5d/58f4f557cf4b43ce85b18dd659993d68 [2021-11-07 01:15:42,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:15:42,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:15:42,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:15:42,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:15:42,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:15:42,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:15:42" (1/1) ... [2021-11-07 01:15:42,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd5ab31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:42, skipping insertion in model container [2021-11-07 01:15:42,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:15:42" (1/1) ... [2021-11-07 01:15:42,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:15:43,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:15:43,463 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2021-11-07 01:15:43,474 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2021-11-07 01:15:43,509 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:15:43,525 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:15:44,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:44,648 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:44,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:44,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:44,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:44,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:44,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:44,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:44,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:45,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:15:45,118 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:15:45,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:15:45,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:15:45,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:15:45,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:15:45,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:15:45,125 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:15:45,126 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:15:45,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:15:45,399 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:15:45,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:45,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:45,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:15:45,703 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:15:45,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76b652a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:45, skipping insertion in model container [2021-11-07 01:15:45,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:15:45,704 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:15:45,707 INFO L168 Benchmark]: Toolchain (without parser) took 2770.86 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 61.5 MB in the beginning and 90.9 MB in the end (delta: -29.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:15:45,707 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:15:45,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2766.86 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 61.3 MB in the beginning and 90.9 MB in the end (delta: -29.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:15:45,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2766.86 ms. Allocated memory was 109.1 MB in the beginning and 144.7 MB in the end (delta: 35.7 MB). Free memory was 61.3 MB in the beginning and 90.9 MB in the end (delta: -29.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:15:48,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:15:48,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:15:48,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:15:48,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:15:48,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:15:48,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:15:48,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:15:48,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:15:48,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:15:48,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:15:48,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:15:48,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:15:48,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:15:48,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:15:48,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:15:48,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:15:48,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:15:48,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:15:48,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:15:48,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:15:48,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:15:48,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:15:48,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:15:48,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:15:48,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:15:48,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:15:48,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:15:48,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:15:48,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:15:48,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:15:48,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:15:48,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:15:48,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:15:48,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:15:48,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:15:48,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:15:48,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:15:48,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:15:48,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:15:48,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:15:48,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:15:48,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:15:48,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:15:48,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:15:48,389 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:15:48,390 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:15:48,390 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:15:48,390 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:15:48,391 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:15:48,391 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:15:48,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:15:48,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:15:48,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:15:48,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:15:48,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:15:48,393 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:15:48,393 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:15:48,394 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:15:48,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:15:48,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:15:48,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:15:48,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:15:48,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:15:48,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:15:48,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:15:48,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:15:48,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:15:48,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:15:48,396 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:15:48,396 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:15:48,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:15:48,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:15:48,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:15:48,397 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 [2021-11-07 01:15:48,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:15:48,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:15:48,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:15:48,824 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:15:48,825 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:15:48,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2021-11-07 01:15:48,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data/5fa85667d/16401dc8b9d54d948863241ab917b039/FLAG44197a483 [2021-11-07 01:15:50,053 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:15:50,054 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i [2021-11-07 01:15:50,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data/5fa85667d/16401dc8b9d54d948863241ab917b039/FLAG44197a483 [2021-11-07 01:15:50,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/data/5fa85667d/16401dc8b9d54d948863241ab917b039 [2021-11-07 01:15:50,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:15:50,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:15:50,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:15:50,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:15:50,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:15:50,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:15:50" (1/1) ... [2021-11-07 01:15:50,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9e1537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:50, skipping insertion in model container [2021-11-07 01:15:50,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:15:50" (1/1) ... [2021-11-07 01:15:50,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:15:50,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:15:50,935 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2021-11-07 01:15:50,943 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2021-11-07 01:15:50,970 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:15:50,977 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:15:52,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,003 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:15:52,497 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:15:52,499 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:15:52,500 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:15:52,503 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:15:52,504 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:15:52,505 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:15:52,506 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:15:52,507 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:15:52,508 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:15:52,823 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:15:52,966 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:52,983 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:15:53,136 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:15:53,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:15:53,228 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2021-11-07 01:15:53,229 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2021-11-07 01:15:53,232 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:15:53,233 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:15:53,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,318 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,319 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,321 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,341 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:15:53,417 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:15:53,418 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:15:53,419 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:15:53,420 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:15:53,421 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:15:53,425 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:15:53,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:15:53,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:15:53,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:15:53,485 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:15:53,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:15:53,680 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:15:53,705 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2021-11-07 01:15:53,706 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_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/sv-benchmarks/c/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2021-11-07 01:15:53,707 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:15:53,708 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:15:53,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,792 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,793 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,795 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,830 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:15:53,831 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:15:53,831 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:15:53,832 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:15:53,833 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:15:53,833 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:15:53,834 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:15:53,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:15:53,835 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:15:53,836 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:15:53,853 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:15:53,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:15:53,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:15:54,403 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:15:54,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54 WrapperNode [2021-11-07 01:15:54,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:15:54,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:15:54,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:15:54,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:15:54,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:15:54,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:15:54,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:15:54,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:15:54,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:15:54,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:15:54,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:15:54,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:15:54,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (1/1) ... [2021-11-07 01:15:54,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:15:54,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:15:54,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:15:54,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:15:54,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:15:54,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:15:54,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:15:54,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-07 01:15:54,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:15:54,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:15:54,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:15:54,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:15:54,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:15:54,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:15:54,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:15:54,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:15:54,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:15:54,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:15:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:15:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:15:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:15:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:15:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:15:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:15:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:15:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:15:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-07 01:15:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-07 01:15:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-07 01:15:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:15:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:15:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:15:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:16:13,380 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !true; [2021-11-07 01:16:13,390 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:16:13,390 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-11-07 01:16:13,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:16:13 BoogieIcfgContainer [2021-11-07 01:16:13,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:16:13,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:16:13,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:16:13,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:16:13,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:15:50" (1/3) ... [2021-11-07 01:16:13,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f88656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:16:13, skipping insertion in model container [2021-11-07 01:16:13,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:15:54" (2/3) ... [2021-11-07 01:16:13,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f88656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:16:13, skipping insertion in model container [2021-11-07 01:16:13,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:16:13" (3/3) ... [2021-11-07 01:16:13,404 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_string_harness.i [2021-11-07 01:16:13,411 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:16:13,412 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-07 01:16:13,497 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:16:13,504 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:16:13,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 01:16:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 112 states have (on average 1.4107142857142858) internal successors, (158), 120 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:13,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:16:13,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:13,532 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:13,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:16:13,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1109000935, now seen corresponding path program 1 times [2021-11-07 01:16:13,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:13,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496295171] [2021-11-07 01:16:13,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:13,568 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:13,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:13,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:13,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:16:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:18,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:16:18,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:18,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:19,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:19,051 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:19,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496295171] [2021-11-07 01:16:19,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496295171] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:19,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:19,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:16:19,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246255646] [2021-11-07 01:16:19,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:16:19,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:19,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:16:19,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:16:19,076 INFO L87 Difference]: Start difference. First operand has 121 states, 112 states have (on average 1.4107142857142858) internal successors, (158), 120 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:19,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:19,104 INFO L93 Difference]: Finished difference Result 237 states and 310 transitions. [2021-11-07 01:16:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:16:19,106 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 01:16:19,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:19,115 INFO L225 Difference]: With dead ends: 237 [2021-11-07 01:16:19,116 INFO L226 Difference]: Without dead ends: 115 [2021-11-07 01:16:19,119 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:16:19,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-07 01:16:19,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-07 01:16:19,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 107 states have (on average 1.2523364485981308) internal successors, (134), 114 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:19,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2021-11-07 01:16:19,159 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 34 [2021-11-07 01:16:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:19,159 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2021-11-07 01:16:19,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2021-11-07 01:16:19,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:16:19,161 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:19,162 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:19,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:16:19,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:19,375 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:16:19,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:19,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1047697893, now seen corresponding path program 1 times [2021-11-07 01:16:19,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:19,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394794855] [2021-11-07 01:16:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:19,390 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:19,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:19,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:19,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:16:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:24,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:16:24,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:24,274 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 32 treesize of output 24 [2021-11-07 01:16:24,284 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 21 treesize of output 13 [2021-11-07 01:16:24,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:24,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:24,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:24,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:24,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394794855] [2021-11-07 01:16:24,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394794855] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:24,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:24,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:16:24,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308376590] [2021-11-07 01:16:24,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:16:24,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:24,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:16:24,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:16:24,827 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:34,107 INFO L93 Difference]: Finished difference Result 208 states and 242 transitions. [2021-11-07 01:16:34,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:16:34,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 01:16:34,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:34,112 INFO L225 Difference]: With dead ends: 208 [2021-11-07 01:16:34,112 INFO L226 Difference]: Without dead ends: 117 [2021-11-07 01:16:34,114 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:16:34,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-07 01:16:34,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-07 01:16:34,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 109 states have (on average 1.2477064220183487) internal successors, (136), 116 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:34,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 136 transitions. [2021-11-07 01:16:34,133 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 136 transitions. Word has length 34 [2021-11-07 01:16:34,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:34,134 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 136 transitions. [2021-11-07 01:16:34,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:34,135 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 136 transitions. [2021-11-07 01:16:34,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 01:16:34,136 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:34,136 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:34,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 01:16:34,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:34,345 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:16:34,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:34,345 INFO L85 PathProgramCache]: Analyzing trace with hash -887750569, now seen corresponding path program 1 times [2021-11-07 01:16:34,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:34,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904286104] [2021-11-07 01:16:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:34,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:34,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:34,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:34,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:16:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:38,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:16:38,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:39,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:39,593 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:39,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904286104] [2021-11-07 01:16:39,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904286104] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:39,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:39,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:16:39,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723602024] [2021-11-07 01:16:39,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:16:39,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:39,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:16:39,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:16:39,596 INFO L87 Difference]: Start difference. First operand 117 states and 136 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:39,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:39,955 INFO L93 Difference]: Finished difference Result 279 states and 322 transitions. [2021-11-07 01:16:39,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:16:39,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-07 01:16:39,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:39,959 INFO L225 Difference]: With dead ends: 279 [2021-11-07 01:16:39,959 INFO L226 Difference]: Without dead ends: 188 [2021-11-07 01:16:39,960 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:16:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-07 01:16:39,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 115. [2021-11-07 01:16:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 107 states have (on average 1.2429906542056075) internal successors, (133), 114 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 133 transitions. [2021-11-07 01:16:39,975 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 133 transitions. Word has length 35 [2021-11-07 01:16:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:39,975 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 133 transitions. [2021-11-07 01:16:39,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2021-11-07 01:16:39,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:16:39,978 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:39,978 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:40,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:16:40,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:40,192 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:16:40,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:40,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1393620352, now seen corresponding path program 1 times [2021-11-07 01:16:40,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:40,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213601626] [2021-11-07 01:16:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:40,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:40,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:40,203 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:40,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:16:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:44,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1794 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:16:44,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:45,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:45,361 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:45,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213601626] [2021-11-07 01:16:45,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213601626] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:45,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:45,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:16:45,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741852159] [2021-11-07 01:16:45,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:16:45,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:45,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:16:45,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:16:45,364 INFO L87 Difference]: Start difference. First operand 115 states and 133 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:45,547 INFO L93 Difference]: Finished difference Result 240 states and 276 transitions. [2021-11-07 01:16:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:16:45,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 01:16:45,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:45,550 INFO L225 Difference]: With dead ends: 240 [2021-11-07 01:16:45,551 INFO L226 Difference]: Without dead ends: 195 [2021-11-07 01:16:45,552 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:16:45,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-07 01:16:45,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 118. [2021-11-07 01:16:45,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 117 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:45,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 136 transitions. [2021-11-07 01:16:45,567 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 136 transitions. Word has length 39 [2021-11-07 01:16:45,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:45,568 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 136 transitions. [2021-11-07 01:16:45,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:45,568 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 136 transitions. [2021-11-07 01:16:45,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:16:45,570 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:45,570 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:45,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:16:45,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:45,795 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:16:45,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:45,795 INFO L85 PathProgramCache]: Analyzing trace with hash 25965596, now seen corresponding path program 1 times [2021-11-07 01:16:45,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:45,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904274105] [2021-11-07 01:16:45,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:45,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:45,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:45,801 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:45,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:16:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:50,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:16:50,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:50,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:50,782 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:50,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904274105] [2021-11-07 01:16:50,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904274105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:50,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:50,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:16:50,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031649229] [2021-11-07 01:16:50,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:16:50,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:50,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:16:50,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:16:50,784 INFO L87 Difference]: Start difference. First operand 118 states and 136 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:51,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:51,055 INFO L93 Difference]: Finished difference Result 181 states and 206 transitions. [2021-11-07 01:16:51,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:16:51,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-07 01:16:51,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:51,058 INFO L225 Difference]: With dead ends: 181 [2021-11-07 01:16:51,058 INFO L226 Difference]: Without dead ends: 139 [2021-11-07 01:16:51,059 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:16:51,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-07 01:16:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 121. [2021-11-07 01:16:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 120 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:51,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2021-11-07 01:16:51,070 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 41 [2021-11-07 01:16:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:51,071 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2021-11-07 01:16:51,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:16:51,071 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2021-11-07 01:16:51,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 01:16:51,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:51,074 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:51,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:16:51,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:51,299 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 01:16:51,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:51,300 INFO L85 PathProgramCache]: Analyzing trace with hash -528776773, now seen corresponding path program 1 times [2021-11-07 01:16:51,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:51,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494390202] [2021-11-07 01:16:51,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:51,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:51,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:51,305 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:51,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ae97c2-86eb-46da-8c60-1ab9b1b5572c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:16:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:56,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-07 01:16:56,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:59,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:18:34,396 WARN L207 SmtUtils]: Spent 1.52 m on a formula simplification. DAG size of input: 662 DAG size of output: 412 [2021-11-07 01:18:34,410 INFO L354 Elim1Store]: treesize reduction 860, result has 57.3 percent of original size [2021-11-07 01:18:34,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 20 new quantified variables, introduced 153 case distinctions, treesize of input 148 treesize of output 1203