./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/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 df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:07:41,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:07:41,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:07:41,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:07:41,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:07:41,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:07:41,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:07:41,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:07:41,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:07:41,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:07:41,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:07:41,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:07:41,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:07:41,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:07:41,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:07:41,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:07:41,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:07:41,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:07:41,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:07:41,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:07:41,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:07:41,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:07:41,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:07:41,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:07:41,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:07:41,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:07:41,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:07:41,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:07:41,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:07:41,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:07:41,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:07:41,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:07:41,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:07:41,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:07:41,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:07:41,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:07:41,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:07:41,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:07:41,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:07:41,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:07:41,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:07:41,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:07:41,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:07:41,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:07:41,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:07:41,929 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:07:41,929 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:07:41,930 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:07:41,930 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:07:41,930 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:07:41,930 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:07:41,930 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:07:41,931 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:07:41,931 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:07:41,931 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:07:41,931 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:07:41,932 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:07:41,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:07:41,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:07:41,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:07:41,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:07:41,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:07:41,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:07:41,933 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:07:41,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:07:41,934 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:07:41,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:07:41,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:07:41,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:07:41,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:07:41,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:07:41,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:07:41,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:07:41,935 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:07:41,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:07:41,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:07:41,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:07:41,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:07:41,936 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 [2021-11-07 01:07:42,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:07:42,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:07:42,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:07:42,243 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:07:42,244 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:07:42,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-07 01:07:42,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data/d2419b4b5/8df3ec3091fa4a1eaaa9e20673e8b76b/FLAG9a6fc9a3d [2021-11-07 01:07:43,143 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:07:43,144 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-07 01:07:43,184 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data/d2419b4b5/8df3ec3091fa4a1eaaa9e20673e8b76b/FLAG9a6fc9a3d [2021-11-07 01:07:43,634 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data/d2419b4b5/8df3ec3091fa4a1eaaa9e20673e8b76b [2021-11-07 01:07:43,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:07:43,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:07:43,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:07:43,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:07:43,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:07:43,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:43" (1/1) ... [2021-11-07 01:07:43,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198f4f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:43, skipping insertion in model container [2021-11-07 01:07:43,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:43" (1/1) ... [2021-11-07 01:07:43,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:07:43,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:07:44,062 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-07 01:07:44,071 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-07 01:07:44,094 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:07:44,099 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:07:45,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,046 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,048 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,049 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,066 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,069 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,070 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:07:45,538 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:07:45,539 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:07:45,541 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:07:45,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:07:45,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:07:45,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:07:45,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:07:45,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:07:45,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:07:45,813 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:07:45,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:45,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:46,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:07:46,125 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 01:07:46,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e4e6a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:46, skipping insertion in model container [2021-11-07 01:07:46,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:07:46,127 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:07:46,130 INFO L168 Benchmark]: Toolchain (without parser) took 2489.69 ms. Allocated memory was 81.8 MB in the beginning and 107.0 MB in the end (delta: 25.2 MB). Free memory was 54.0 MB in the beginning and 53.8 MB in the end (delta: 164.4 kB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:46,131 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 61.8 MB in the beginning and 61.7 MB in the end (delta: 39.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:07:46,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2487.26 ms. Allocated memory was 81.8 MB in the beginning and 107.0 MB in the end (delta: 25.2 MB). Free memory was 53.8 MB in the beginning and 53.8 MB in the end (delta: -16.9 kB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:07:46,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 81.8 MB. Free memory was 61.8 MB in the beginning and 61.7 MB in the end (delta: 39.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2487.26 ms. Allocated memory was 81.8 MB in the beginning and 107.0 MB in the end (delta: 25.2 MB). Free memory was 53.8 MB in the beginning and 53.8 MB in the end (delta: -16.9 kB). Peak memory consumption was 27.9 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/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 df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:07:48,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:07:48,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:07:48,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:07:48,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:07:48,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:07:48,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:07:48,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:07:48,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:07:48,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:07:48,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:07:48,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:07:48,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:07:48,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:07:48,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:07:48,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:07:48,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:07:48,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:07:48,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:07:48,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:07:48,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:07:48,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:07:48,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:07:48,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:07:48,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:07:48,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:07:48,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:07:48,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:07:48,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:07:48,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:07:48,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:07:48,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:07:48,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:07:48,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:07:48,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:07:48,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:07:48,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:07:48,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:07:48,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:07:48,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:07:48,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:07:48,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:07:48,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:07:48,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:07:48,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:07:48,467 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:07:48,468 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:07:48,468 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:07:48,468 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:07:48,468 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:07:48,469 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:07:48,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:07:48,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:07:48,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:07:48,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:07:48,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:07:48,472 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:07:48,472 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:07:48,473 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:07:48,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:07:48,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:07:48,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:07:48,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:07:48,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:07:48,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:07:48,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:07:48,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:07:48,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:07:48,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:07:48,475 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:07:48,475 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:07:48,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:07:48,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:07:48,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:07:48,476 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 [2021-11-07 01:07:48,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:07:48,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:07:48,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:07:48,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:07:48,890 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:07:48,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-07 01:07:48,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data/29a0061c4/7333336d3bd74d5d8971075d33fc8a85/FLAGb0b0428a8 [2021-11-07 01:07:49,970 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:07:49,971 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-07 01:07:50,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data/29a0061c4/7333336d3bd74d5d8971075d33fc8a85/FLAGb0b0428a8 [2021-11-07 01:07:50,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/data/29a0061c4/7333336d3bd74d5d8971075d33fc8a85 [2021-11-07 01:07:50,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:07:50,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:07:50,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:07:50,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:07:50,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:07:50,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:50" (1/1) ... [2021-11-07 01:07:50,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613b288f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:50, skipping insertion in model container [2021-11-07 01:07:50,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:50" (1/1) ... [2021-11-07 01:07:50,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:07:50,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:07:50,844 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-07 01:07:50,851 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-07 01:07:50,882 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:07:50,896 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:07:51,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:51,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:51,882 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:51,883 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:51,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:51,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:51,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:51,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:51,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:07:52,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:07:52,337 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:07:52,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:07:52,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:07:52,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:07:52,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:07:52,342 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:07:52,343 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:07:52,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:07:52,532 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:07:52,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:07:52,819 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:07:52,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:07:52,871 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-07 01:07:52,872 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-07 01:07:52,873 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:07:52,874 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:07:52,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:52,949 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:07:52,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:07:52,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:07:52,951 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:07:52,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:07:52,958 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:07:52,959 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:07:52,959 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:07:52,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:07:52,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:07:52,992 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:07:53,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:07:53,124 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:07:53,137 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-07 01:07:53,138 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_33c21004-0b8f-4d29-95b4-bd624a8e8b12/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-07 01:07:53,139 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:07:53,140 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:07:53,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,248 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:07:53,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:07:53,249 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:07:53,250 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:07:53,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:07:53,251 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:07:53,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:07:53,253 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:07:53,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:07:53,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:07:53,280 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:07:53,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:07:53,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:07:53,870 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:07:53,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53 WrapperNode [2021-11-07 01:07:53,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:07:53,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:07:53,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:07:53,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:07:53,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:07:54,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:07:54,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:07:54,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:07:54,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:07:54,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:07:54,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:07:54,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:07:54,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (1/1) ... [2021-11-07 01:07:54,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:07:54,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:07:54,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:07:54,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:07:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:07:54,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:07:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:07:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:07:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:07:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:07:54,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:07:54,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:07:54,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:07:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:07:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:07:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:07:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:07:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:07:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:08:08,867 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:08:08,870 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-11-07 01:08:08,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:08:08 BoogieIcfgContainer [2021-11-07 01:08:08,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:08:08,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:08:08,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:08:08,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:08:08,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:07:50" (1/3) ... [2021-11-07 01:08:08,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6064e084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:08:08, skipping insertion in model container [2021-11-07 01:08:08,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:53" (2/3) ... [2021-11-07 01:08:08,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6064e084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:08:08, skipping insertion in model container [2021-11-07 01:08:08,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:08:08" (3/3) ... [2021-11-07 01:08:08,890 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_left_trim_pred_harness.i [2021-11-07 01:08:08,896 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:08:08,897 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 01:08:08,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:08:08,970 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 01:08:08,970 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 01:08:08,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 118 states have (on average 1.4491525423728813) internal successors, (171), 123 states have internal predecessors, (171), 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 01:08:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:08:09,004 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:09,005 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] [2021-11-07 01:08:09,006 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:08:09,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:09,018 INFO L85 PathProgramCache]: Analyzing trace with hash 960385600, now seen corresponding path program 1 times [2021-11-07 01:08:09,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:09,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565006287] [2021-11-07 01:08:09,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:09,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:09,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:09,052 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:09,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:08:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:13,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:08:13,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:13,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:13,558 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 01:08:13,559 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:13,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565006287] [2021-11-07 01:08:13,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565006287] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:13,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:13,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:08:13,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828628892] [2021-11-07 01:08:13,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:08:13,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:13,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:08:13,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:08:13,593 INFO L87 Difference]: Start difference. First operand has 124 states, 118 states have (on average 1.4491525423728813) internal successors, (171), 123 states have internal predecessors, (171), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 01:08:13,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:13,640 INFO L93 Difference]: Finished difference Result 244 states and 337 transitions. [2021-11-07 01:08:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:08:13,641 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2021-11-07 01:08:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:13,654 INFO L225 Difference]: With dead ends: 244 [2021-11-07 01:08:13,654 INFO L226 Difference]: Without dead ends: 117 [2021-11-07 01:08:13,659 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 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 01:08:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-07 01:08:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-07 01:08:13,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.3392857142857142) internal successors, (150), 116 states have internal predecessors, (150), 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 01:08:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 150 transitions. [2021-11-07 01:08:13,712 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 150 transitions. Word has length 30 [2021-11-07 01:08:13,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:13,712 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 150 transitions. [2021-11-07 01:08:13,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 01:08:13,713 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 150 transitions. [2021-11-07 01:08:13,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:08:13,721 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:13,721 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] [2021-11-07 01:08:13,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:13,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:13,935 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:08:13,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:13,936 INFO L85 PathProgramCache]: Analyzing trace with hash -649638665, now seen corresponding path program 1 times [2021-11-07 01:08:13,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:13,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711081763] [2021-11-07 01:08:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:13,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:13,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:13,946 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:13,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:08:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:18,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:08:18,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:18,419 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 01:08:18,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:18,587 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 01:08:18,587 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:18,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711081763] [2021-11-07 01:08:18,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711081763] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:18,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:18,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:08:18,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016433830] [2021-11-07 01:08:18,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:08:18,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:18,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:08:18,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:08:18,591 INFO L87 Difference]: Start difference. First operand 117 states and 150 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 01:08:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:18,833 INFO L93 Difference]: Finished difference Result 213 states and 273 transitions. [2021-11-07 01:08:18,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:08:18,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2021-11-07 01:08:18,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:18,836 INFO L225 Difference]: With dead ends: 213 [2021-11-07 01:08:18,836 INFO L226 Difference]: Without dead ends: 117 [2021-11-07 01:08:18,837 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 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 01:08:18,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-07 01:08:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-07 01:08:18,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.3125) internal successors, (147), 116 states have internal predecessors, (147), 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 01:08:18,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2021-11-07 01:08:18,847 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 32 [2021-11-07 01:08:18,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:18,847 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2021-11-07 01:08:18,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 01:08:18,848 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2021-11-07 01:08:18,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 01:08:18,849 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:18,849 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] [2021-11-07 01:08:18,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:19,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:19,063 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:08:19,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:19,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1150788759, now seen corresponding path program 1 times [2021-11-07 01:08:19,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:19,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276340381] [2021-11-07 01:08:19,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:19,072 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:19,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:19,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:19,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:08:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:23,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:08:23,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:23,721 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 01:08:23,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:23,957 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 01:08:23,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:23,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276340381] [2021-11-07 01:08:23,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276340381] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:23,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:23,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:08:23,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626428550] [2021-11-07 01:08:23,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:08:23,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:23,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:08:23,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:08:23,960 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:24,279 INFO L93 Difference]: Finished difference Result 174 states and 217 transitions. [2021-11-07 01:08:24,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:08:24,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 01:08:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:24,281 INFO L225 Difference]: With dead ends: 174 [2021-11-07 01:08:24,281 INFO L226 Difference]: Without dead ends: 117 [2021-11-07 01:08:24,282 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:08:24,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-07 01:08:24,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-11-07 01:08:24,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 112 states have (on average 1.3035714285714286) internal successors, (146), 116 states have internal predecessors, (146), 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 01:08:24,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2021-11-07 01:08:24,291 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 36 [2021-11-07 01:08:24,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:24,291 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2021-11-07 01:08:24,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:24,292 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2021-11-07 01:08:24,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 01:08:24,293 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:24,293 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:24,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:08:24,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:24,507 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:08:24,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash 410162962, now seen corresponding path program 1 times [2021-11-07 01:08:24,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:24,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769743238] [2021-11-07 01:08:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:24,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:24,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:24,516 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:24,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:08:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:28,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-07 01:08:28,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:30,097 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 01:08:30,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:41,439 WARN L207 SmtUtils]: Spent 10.08 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 01:08:41,446 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 01:08:41,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 128 treesize of output 771 [2021-11-07 01:18:31,306 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 01:18:31,306 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:18:31,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769743238] [2021-11-07 01:18:31,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769743238] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:18:31,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:18:31,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 19 [2021-11-07 01:18:31,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383369004] [2021-11-07 01:18:31,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 01:18:31,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:18:31,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 01:18:31,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-11-07 01:18:31,310 INFO L87 Difference]: Start difference. First operand 117 states and 146 transitions. Second operand has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 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 01:18:53,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:53,369 INFO L93 Difference]: Finished difference Result 462 states and 570 transitions. [2021-11-07 01:18:53,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-07 01:18:53,371 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-07 01:18:53,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:53,375 INFO L225 Difference]: With dead ends: 462 [2021-11-07 01:18:53,375 INFO L226 Difference]: Without dead ends: 377 [2021-11-07 01:18:53,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1834 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1162, Invalid=5318, Unknown=0, NotChecked=0, Total=6480 [2021-11-07 01:18:53,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-07 01:18:53,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 207. [2021-11-07 01:18:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.2475247524752475) internal successors, (252), 206 states have internal predecessors, (252), 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 01:18:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 252 transitions. [2021-11-07 01:18:53,405 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 252 transitions. Word has length 38 [2021-11-07 01:18:53,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:53,406 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 252 transitions. [2021-11-07 01:18:53,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 states have internal predecessors, (72), 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 01:18:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 252 transitions. [2021-11-07 01:18:53,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 01:18:53,408 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:53,408 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] [2021-11-07 01:18:53,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:18:53,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:18:53,623 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:18:53,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:53,623 INFO L85 PathProgramCache]: Analyzing trace with hash 324843685, now seen corresponding path program 1 times [2021-11-07 01:18:53,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:18:53,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904718072] [2021-11-07 01:18:53,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:53,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:18:53,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:18:53,629 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:18:53,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:18:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:58,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:18:58,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:18:58,206 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 01:18:58,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:18:58,344 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 01:18:58,344 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:18:58,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904718072] [2021-11-07 01:18:58,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904718072] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:18:58,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:18:58,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:18:58,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178881154] [2021-11-07 01:18:58,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:18:58,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:18:58,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:18:58,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:18:58,346 INFO L87 Difference]: Start difference. First operand 207 states and 252 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 01:18:58,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:58,555 INFO L93 Difference]: Finished difference Result 264 states and 318 transitions. [2021-11-07 01:18:58,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:18:58,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2021-11-07 01:18:58,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:58,559 INFO L225 Difference]: With dead ends: 264 [2021-11-07 01:18:58,559 INFO L226 Difference]: Without dead ends: 207 [2021-11-07 01:18:58,559 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 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 01:18:58,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-07 01:18:58,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-11-07 01:18:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.2376237623762376) internal successors, (250), 206 states have internal predecessors, (250), 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 01:18:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 250 transitions. [2021-11-07 01:18:58,577 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 250 transitions. Word has length 43 [2021-11-07 01:18:58,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:58,577 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 250 transitions. [2021-11-07 01:18:58,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 01:18:58,578 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 250 transitions. [2021-11-07 01:18:58,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:18:58,580 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:58,581 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:18:58,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:18:58,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:18:58,791 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:18:58,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:58,791 INFO L85 PathProgramCache]: Analyzing trace with hash 495838041, now seen corresponding path program 1 times [2021-11-07 01:18:58,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:18:58,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262966184] [2021-11-07 01:18:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:58,795 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:18:58,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:18:58,795 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:18:58,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33c21004-0b8f-4d29-95b4-bd624a8e8b12/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:19:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:19:03,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1796 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 01:19:03,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:19:04,228 INFO L354 Elim1Store]: treesize reduction 1202, result has 0.1 percent of original size [2021-11-07 01:19:04,228 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 629 treesize of output 203 [2021-11-07 01:19:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:19:04,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:20:16,155 WARN L207 SmtUtils]: Spent 1.11 m on a formula simplification. DAG size of input: 1166 DAG size of output: 738 [2021-11-07 01:20:16,164 INFO L354 Elim1Store]: treesize reduction 1552, result has 58.6 percent of original size [2021-11-07 01:20:16,165 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 695 treesize of output 2387