./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_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_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/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_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/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_bea70087-9f08-40b9-adc0-de4d7e91b12c/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 82914be9df39aade96902f979c145aa97bb18d611f7f0e9a90ee0ab6b53af5a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:08:10,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:08:10,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:08:10,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:08:10,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:08:10,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:08:10,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:08:10,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:08:10,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:08:10,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:08:10,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:08:10,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:08:10,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:08:10,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:08:10,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:08:10,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:08:10,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:08:10,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:08:10,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:08:10,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:08:10,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:08:10,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:08:10,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:08:10,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:08:10,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:08:10,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:08:10,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:08:10,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:08:10,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:08:10,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:08:10,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:08:10,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:08:10,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:08:10,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:08:10,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:08:10,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:08:10,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:08:10,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:08:10,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:08:10,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:08:10,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:08:10,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:08:10,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:08:10,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:08:10,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:08:10,988 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:08:10,988 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:08:10,989 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:08:10,989 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:08:10,989 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:08:10,989 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:08:10,990 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:08:10,997 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:08:10,997 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:08:10,998 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:08:10,998 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:08:10,998 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:08:10,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:08:10,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:08:10,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:08:11,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:08:11,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:08:11,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:08:11,000 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:08:11,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:08:11,001 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:08:11,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:08:11,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:08:11,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:08:11,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:08:11,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:08:11,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:08:11,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:08:11,005 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:08:11,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:08:11,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:08:11,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:08:11,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:08:11,006 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82914be9df39aade96902f979c145aa97bb18d611f7f0e9a90ee0ab6b53af5a2 [2021-11-07 01:08:11,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:08:11,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:08:11,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:08:11,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:08:11,344 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:08:11,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2021-11-07 01:08:11,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data/f51f0e798/44793f98b32f4ac883bcba7f66ee21bc/FLAG9f6dfc462 [2021-11-07 01:08:12,431 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:08:12,435 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2021-11-07 01:08:12,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data/f51f0e798/44793f98b32f4ac883bcba7f66ee21bc/FLAG9f6dfc462 [2021-11-07 01:08:12,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data/f51f0e798/44793f98b32f4ac883bcba7f66ee21bc [2021-11-07 01:08:12,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:08:12,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:08:12,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:12,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:08:12,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:08:12,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:12" (1/1) ... [2021-11-07 01:08:12,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5092d72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:12, skipping insertion in model container [2021-11-07 01:08:12,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:12" (1/1) ... [2021-11-07 01:08:12,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:08:13,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:08:13,445 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4501,4514] [2021-11-07 01:08:13,460 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4561,4574] [2021-11-07 01:08:13,485 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:08:13,491 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:08:14,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:14,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:14,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:14,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:14,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:14,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:14,674 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:14,676 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:14,677 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:15,210 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:08:15,211 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:08:15,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:08:15,214 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:08:15,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:08:15,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:08:15,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:08:15,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:08:15,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:08:15,220 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:08:15,430 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:08:15,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:15,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:15,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:15,819 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 01:08:15,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5fb700cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:15, skipping insertion in model container [2021-11-07 01:08:15,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:15,821 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:08:15,824 INFO L168 Benchmark]: Toolchain (without parser) took 2961.50 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 66.0 MB in the beginning and 80.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:08:15,825 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory was 62.1 MB in the beginning and 62.0 MB in the end (delta: 53.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:08:15,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2951.82 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 65.8 MB in the beginning and 80.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:08:15,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory was 62.1 MB in the beginning and 62.0 MB in the end (delta: 53.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2951.82 ms. Allocated memory was 104.9 MB in the beginning and 130.0 MB in the end (delta: 25.2 MB). Free memory was 65.8 MB in the beginning and 80.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/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_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/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_bea70087-9f08-40b9-adc0-de4d7e91b12c/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 82914be9df39aade96902f979c145aa97bb18d611f7f0e9a90ee0ab6b53af5a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:08:18,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:08:18,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:08:18,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:08:18,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:08:18,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:08:18,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:08:18,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:08:18,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:08:18,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:08:18,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:08:18,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:08:18,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:08:18,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:08:18,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:08:18,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:08:18,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:08:18,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:08:18,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:08:18,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:08:18,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:08:18,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:08:18,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:08:18,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:08:18,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:08:18,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:08:18,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:08:18,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:08:18,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:08:18,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:08:18,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:08:18,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:08:18,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:08:18,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:08:18,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:08:18,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:08:18,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:08:18,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:08:18,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:08:18,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:08:18,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:08:18,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:08:18,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:08:18,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:08:18,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:08:18,321 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:08:18,321 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:08:18,322 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:08:18,322 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:08:18,322 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:08:18,322 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:08:18,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:08:18,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:08:18,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:08:18,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:08:18,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:08:18,324 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:08:18,324 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:08:18,324 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:08:18,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:08:18,325 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:08:18,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:08:18,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:08:18,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:08:18,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:08:18,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:08:18,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:08:18,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:08:18,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:08:18,326 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:08:18,327 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:08:18,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:08:18,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:08:18,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:08:18,327 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82914be9df39aade96902f979c145aa97bb18d611f7f0e9a90ee0ab6b53af5a2 [2021-11-07 01:08:18,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:08:18,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:08:18,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:08:18,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:08:18,819 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:08:18,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2021-11-07 01:08:18,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data/c3a9a8c72/6f90ff906ccd48d1997c8611bd70441c/FLAG38d0a20c0 [2021-11-07 01:08:19,953 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:08:19,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i [2021-11-07 01:08:19,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data/c3a9a8c72/6f90ff906ccd48d1997c8611bd70441c/FLAG38d0a20c0 [2021-11-07 01:08:20,344 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/data/c3a9a8c72/6f90ff906ccd48d1997c8611bd70441c [2021-11-07 01:08:20,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:08:20,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:08:20,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:20,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:08:20,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:08:20,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:20" (1/1) ... [2021-11-07 01:08:20,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51fb88b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:20, skipping insertion in model container [2021-11-07 01:08:20,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:08:20" (1/1) ... [2021-11-07 01:08:20,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:08:20,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:08:20,888 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4501,4514] [2021-11-07 01:08:20,898 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4561,4574] [2021-11-07 01:08:20,940 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:08:20,958 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:08:22,114 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,116 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:08:22,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:08:22,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:08:22,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:08:22,591 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:08:22,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:08:22,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:08:22,594 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:08:22,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:08:22,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:08:22,812 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:08:22,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:22,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:23,081 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:08:23,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:08:23,157 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4501,4514] [2021-11-07 01:08:23,157 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4561,4574] [2021-11-07 01:08:23,159 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:08:23,160 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:08:23,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,196 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,196 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,214 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,215 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:08:23,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:08:23,253 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:08:23,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:08:23,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:08:23,255 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:08:23,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:08:23,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:08:23,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:08:23,258 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:08:23,283 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:08:23,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:23,458 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:08:23,483 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4501,4514] [2021-11-07 01:08:23,483 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_bea70087-9f08-40b9-adc0-de4d7e91b12c/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_ignore_case_harness.i[4561,4574] [2021-11-07 01:08:23,484 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:08:23,485 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:08:23,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,531 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:08:23,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:08:23,571 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:08:23,572 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:08:23,573 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:08:23,573 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:08:23,573 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:08:23,574 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:08:23,574 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:08:23,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:08:23,627 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:08:23,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:08:23,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:08:24,303 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:08:24,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24 WrapperNode [2021-11-07 01:08:24,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:08:24,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:08:24,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:08:24,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:08:24,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:08:24,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:08:24,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:08:24,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:08:24,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:08:24,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:08:24,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:08:24,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:08:24,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (1/1) ... [2021-11-07 01:08:24,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:08:24,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:08:24,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:08:24,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:08:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:08:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:08:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:08:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:08:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:08:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:08:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:08:24,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:08:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:08:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:08:24,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:08:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:08:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:08:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:08:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:08:43,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:08:43,294 INFO L299 CfgBuilder]: Removed 119 assume(true) statements. [2021-11-07 01:08:43,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:08:43 BoogieIcfgContainer [2021-11-07 01:08:43,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:08:43,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:08:43,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:08:43,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:08:43,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:08:20" (1/3) ... [2021-11-07 01:08:43,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218de370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:08:43, skipping insertion in model container [2021-11-07 01:08:43,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:08:24" (2/3) ... [2021-11-07 01:08:43,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218de370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:08:43, skipping insertion in model container [2021-11-07 01:08:43,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:08:43" (3/3) ... [2021-11-07 01:08:43,311 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_ignore_case_harness.i [2021-11-07 01:08:43,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:08:43,352 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-07 01:08:43,436 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:08:43,442 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 01:08:43,442 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-07 01:08:43,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 251 states, 235 states have (on average 1.4851063829787234) internal successors, (349), 250 states have internal predecessors, (349), 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 01:08:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 01:08:43,490 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:43,491 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] [2021-11-07 01:08:43,491 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:08:43,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:43,505 INFO L85 PathProgramCache]: Analyzing trace with hash 825701746, now seen corresponding path program 1 times [2021-11-07 01:08:43,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:43,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143382213] [2021-11-07 01:08:43,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:43,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:43,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:43,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:43,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:08:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:48,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:08:48,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:48,323 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 01:08:48,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:48,530 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 01:08:48,530 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:48,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143382213] [2021-11-07 01:08:48,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143382213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:48,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:48,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:08:48,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844110367] [2021-11-07 01:08:48,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:08:48,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:48,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:08:48,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:08:48,554 INFO L87 Difference]: Start difference. First operand has 251 states, 235 states have (on average 1.4851063829787234) internal successors, (349), 250 states have internal predecessors, (349), 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 01:08:48,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:48,592 INFO L93 Difference]: Finished difference Result 498 states and 693 transitions. [2021-11-07 01:08:48,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:08:48,594 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-11-07 01:08:48,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:48,605 INFO L225 Difference]: With dead ends: 498 [2021-11-07 01:08:48,605 INFO L226 Difference]: Without dead ends: 244 [2021-11-07 01:08:48,609 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 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 01:08:48,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-07 01:08:48,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-11-07 01:08:48,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 229 states have (on average 1.3580786026200873) internal successors, (311), 243 states have internal predecessors, (311), 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 01:08:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 311 transitions. [2021-11-07 01:08:48,657 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 311 transitions. Word has length 44 [2021-11-07 01:08:48,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:48,658 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 311 transitions. [2021-11-07 01:08:48,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 01:08:48,658 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 311 transitions. [2021-11-07 01:08:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 01:08:48,660 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:48,661 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] [2021-11-07 01:08:48,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:48,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:48,862 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:08:48,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:48,863 INFO L85 PathProgramCache]: Analyzing trace with hash -291371024, now seen corresponding path program 1 times [2021-11-07 01:08:48,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:48,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255623478] [2021-11-07 01:08:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:48,866 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:48,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:48,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:48,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:08:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:53,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:08:53,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:53,381 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 01:08:53,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:53,671 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 01:08:53,671 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:53,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255623478] [2021-11-07 01:08:53,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255623478] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:53,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:53,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:08:53,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876588997] [2021-11-07 01:08:53,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:08:53,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:53,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:08:53,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:08:53,674 INFO L87 Difference]: Start difference. First operand 244 states and 311 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 01:08:57,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:57,215 INFO L93 Difference]: Finished difference Result 462 states and 588 transitions. [2021-11-07 01:08:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:08:57,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2021-11-07 01:08:57,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:57,218 INFO L225 Difference]: With dead ends: 462 [2021-11-07 01:08:57,218 INFO L226 Difference]: Without dead ends: 244 [2021-11-07 01:08:57,220 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:08:57,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-07 01:08:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-11-07 01:08:57,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 229 states have (on average 1.3449781659388647) internal successors, (308), 243 states have internal predecessors, (308), 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 01:08:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 308 transitions. [2021-11-07 01:08:57,246 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 308 transitions. Word has length 44 [2021-11-07 01:08:57,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:57,246 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 308 transitions. [2021-11-07 01:08:57,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 01:08:57,247 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 308 transitions. [2021-11-07 01:08:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 01:08:57,249 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:57,250 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:57,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:57,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:57,469 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:08:57,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:57,470 INFO L85 PathProgramCache]: Analyzing trace with hash 913690504, now seen corresponding path program 1 times [2021-11-07 01:08:57,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:57,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492997177] [2021-11-07 01:08:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:57,475 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:57,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:57,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:57,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:09:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:01,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 1896 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:09:01,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:01,960 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 01:09:01,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:02,175 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 01:09:02,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:02,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492997177] [2021-11-07 01:09:02,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492997177] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:02,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:02,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:09:02,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357707546] [2021-11-07 01:09:02,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:09:02,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:02,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:09:02,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:09:02,178 INFO L87 Difference]: Start difference. First operand 244 states and 308 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 01:09:02,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:02,827 INFO L93 Difference]: Finished difference Result 543 states and 696 transitions. [2021-11-07 01:09:02,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:09:02,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2021-11-07 01:09:02,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:02,831 INFO L225 Difference]: With dead ends: 543 [2021-11-07 01:09:02,831 INFO L226 Difference]: Without dead ends: 324 [2021-11-07 01:09:02,832 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:09:02,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-07 01:09:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 260. [2021-11-07 01:09:02,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 245 states have (on average 1.3224489795918368) internal successors, (324), 259 states have internal predecessors, (324), 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 01:09:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 324 transitions. [2021-11-07 01:09:02,862 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 324 transitions. Word has length 56 [2021-11-07 01:09:02,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:02,863 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 324 transitions. [2021-11-07 01:09:02,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 01:09:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 324 transitions. [2021-11-07 01:09:02,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 01:09:02,865 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:02,865 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:09:02,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:03,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:03,066 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:09:03,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:03,067 INFO L85 PathProgramCache]: Analyzing trace with hash 490043782, now seen corresponding path program 1 times [2021-11-07 01:09:03,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:03,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865836413] [2021-11-07 01:09:03,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:03,072 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:03,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:03,073 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:03,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:09:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:07,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1899 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:09:07,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:07,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 01:09:08,094 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 01:09:08,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:08,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-07 01:09:08,714 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 01:09:08,715 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:08,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865836413] [2021-11-07 01:09:08,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865836413] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:08,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:08,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:09:08,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742058552] [2021-11-07 01:09:08,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:09:08,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:08,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:09:08,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:09:08,717 INFO L87 Difference]: Start difference. First operand 260 states and 324 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 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 01:09:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:28,338 INFO L93 Difference]: Finished difference Result 793 states and 1001 transitions. [2021-11-07 01:09:28,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 01:09:28,340 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 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 56 [2021-11-07 01:09:28,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:28,343 INFO L225 Difference]: With dead ends: 793 [2021-11-07 01:09:28,343 INFO L226 Difference]: Without dead ends: 560 [2021-11-07 01:09:28,345 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2021-11-07 01:09:28,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-11-07 01:09:28,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 258. [2021-11-07 01:09:28,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 243 states have (on average 1.3209876543209877) internal successors, (321), 257 states have internal predecessors, (321), 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 01:09:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 321 transitions. [2021-11-07 01:09:28,370 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 321 transitions. Word has length 56 [2021-11-07 01:09:28,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:28,371 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 321 transitions. [2021-11-07 01:09:28,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 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 01:09:28,371 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 321 transitions. [2021-11-07 01:09:28,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:09:28,380 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:28,380 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:09:28,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:28,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:28,603 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:09:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1669275504, now seen corresponding path program 1 times [2021-11-07 01:09:28,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:28,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208411173] [2021-11-07 01:09:28,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:28,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:28,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:28,610 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:28,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:09:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:33,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1905 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:09:33,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:33,430 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:09:33,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:09:33,703 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 01:09:33,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:34,264 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 01:09:34,265 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:34,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208411173] [2021-11-07 01:09:34,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208411173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:34,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:34,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:09:34,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619229601] [2021-11-07 01:09:34,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:09:34,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:09:34,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:09:34,267 INFO L87 Difference]: Start difference. First operand 258 states and 321 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:45,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:45,408 INFO L93 Difference]: Finished difference Result 792 states and 979 transitions. [2021-11-07 01:09:45,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:09:45,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 01:09:45,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:45,415 INFO L225 Difference]: With dead ends: 792 [2021-11-07 01:09:45,415 INFO L226 Difference]: Without dead ends: 554 [2021-11-07 01:09:45,416 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:09:45,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-11-07 01:09:45,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 312. [2021-11-07 01:09:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 297 states have (on average 1.3131313131313131) internal successors, (390), 311 states have internal predecessors, (390), 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 01:09:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 390 transitions. [2021-11-07 01:09:45,432 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 390 transitions. Word has length 60 [2021-11-07 01:09:45,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:45,432 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 390 transitions. [2021-11-07 01:09:45,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 390 transitions. [2021-11-07 01:09:45,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 01:09:45,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:45,435 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:09:45,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:45,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:45,647 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:09:45,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:45,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1421129010, now seen corresponding path program 1 times [2021-11-07 01:09:45,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:45,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174178214] [2021-11-07 01:09:45,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:45,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:45,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:45,652 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:45,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:09:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:09:49,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1902 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:09:49,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:09:50,182 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:09:50,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:09:50,778 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 01:09:50,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:09:51,400 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 01:09:51,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:09:51,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174178214] [2021-11-07 01:09:51,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174178214] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:09:51,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:09:51,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:09:51,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40406308] [2021-11-07 01:09:51,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:09:51,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:09:51,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:09:51,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:09:51,403 INFO L87 Difference]: Start difference. First operand 312 states and 390 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:12,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:10:12,526 INFO L93 Difference]: Finished difference Result 983 states and 1163 transitions. [2021-11-07 01:10:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:10:12,530 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 01:10:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:10:12,534 INFO L225 Difference]: With dead ends: 983 [2021-11-07 01:10:12,534 INFO L226 Difference]: Without dead ends: 614 [2021-11-07 01:10:12,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:10:12,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-11-07 01:10:12,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 306. [2021-11-07 01:10:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 291 states have (on average 1.2577319587628866) internal successors, (366), 305 states have internal predecessors, (366), 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 01:10:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 366 transitions. [2021-11-07 01:10:12,552 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 366 transitions. Word has length 60 [2021-11-07 01:10:12,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:10:12,553 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 366 transitions. [2021-11-07 01:10:12,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:12,553 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 366 transitions. [2021-11-07 01:10:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 01:10:12,554 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:12,554 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:10:12,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:10:12,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:10:12,762 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:10:12,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash 184697132, now seen corresponding path program 1 times [2021-11-07 01:10:12,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:12,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385122945] [2021-11-07 01:10:12,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:12,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:12,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:12,766 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:12,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bea70087-9f08-40b9-adc0-de4d7e91b12c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:10:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:17,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-07 01:10:17,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:19,738 INFO L354 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2021-11-07 01:10:19,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 197 treesize of output 69 [2021-11-07 01:10:20,161 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 01:10:20,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:51,155 WARN L207 SmtUtils]: Spent 27.62 s on a formula simplification. DAG size of input: 1166 DAG size of output: 513 [2021-11-07 01:10:51,164 INFO L354 Elim1Store]: treesize reduction 2280, result has 39.2 percent of original size [2021-11-07 01:10:51,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 252 treesize of output 1538