./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_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_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/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_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/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_d426146e-cb65-4c73-b079-9399ce138526/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 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:06:40,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:06:40,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:06:40,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:06:40,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:06:40,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:06:40,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:06:40,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:06:40,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:06:40,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:06:40,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:06:40,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:06:40,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:06:40,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:06:40,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:06:40,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:06:40,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:06:40,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:06:40,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:06:40,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:06:40,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:06:40,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:06:40,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:06:40,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:06:40,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:06:40,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:06:40,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:06:40,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:06:40,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:06:40,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:06:40,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:06:40,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:06:40,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:06:40,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:06:40,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:06:40,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:06:40,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:06:40,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:06:40,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:06:40,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:06:40,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:06:40,942 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:06:40,985 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:06:40,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:06:40,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:06:40,987 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:06:40,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:06:40,987 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:06:40,988 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:06:40,988 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:06:40,992 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:06:40,992 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:06:40,993 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:06:40,994 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:06:40,994 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:06:40,994 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:06:40,994 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:06:40,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:06:40,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:06:40,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:06:40,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:06:40,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:06:40,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:06:40,997 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:06:40,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:06:40,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:06:40,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:06:40,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:06:40,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:06:40,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:40,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:06:40,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:06:40,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:06:40,999 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:06:41,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:06:41,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:06:41,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:06:41,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:06:41,001 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_d426146e-cb65-4c73-b079-9399ce138526/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 [2021-11-07 01:06:41,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:06:41,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:06:41,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:06:41,422 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:06:41,423 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:06:41,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2021-11-07 01:06:41,507 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data/7f45206f4/066a2244a1ca460a8b55a59d028afb94/FLAG43357140c [2021-11-07 01:06:42,257 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:06:42,258 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2021-11-07 01:06:42,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data/7f45206f4/066a2244a1ca460a8b55a59d028afb94/FLAG43357140c [2021-11-07 01:06:42,327 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data/7f45206f4/066a2244a1ca460a8b55a59d028afb94 [2021-11-07 01:06:42,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:06:42,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:06:42,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:42,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:06:42,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:06:42,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:42" (1/1) ... [2021-11-07 01:06:42,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208647b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:42, skipping insertion in model container [2021-11-07 01:06:42,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:42" (1/1) ... [2021-11-07 01:06:42,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:06:42,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:42,866 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_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2021-11-07 01:06:42,873 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_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2021-11-07 01:06:42,898 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:42,903 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:43,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:43,868 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:43,869 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:43,875 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:43,879 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:43,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:43,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:43,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:43,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:44,447 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:44,448 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:44,449 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:44,451 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:44,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:44,453 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:44,453 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:44,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:44,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:44,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:44,698 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:44,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:44,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:44,796 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:44,797 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:44,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:44,937 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 01:06:44,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46213c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:44, skipping insertion in model container [2021-11-07 01:06:44,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:44,938 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:06:44,941 INFO L168 Benchmark]: Toolchain (without parser) took 2607.42 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 67.7 MB in the beginning and 64.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:06:44,942 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 71.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:06:44,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2602.13 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 67.5 MB in the beginning and 64.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:06:44,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 71.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2602.13 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 67.5 MB in the beginning and 64.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/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_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/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_d426146e-cb65-4c73-b079-9399ce138526/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 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:06:47,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:06:47,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:06:47,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:06:47,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:06:47,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:06:47,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:06:47,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:06:47,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:06:47,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:06:47,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:06:47,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:06:47,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:06:47,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:06:47,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:06:47,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:06:47,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:06:47,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:06:47,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:06:47,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:06:47,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:06:47,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:06:47,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:06:47,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:06:47,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:06:47,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:06:47,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:06:47,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:06:47,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:06:47,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:06:47,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:06:47,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:06:47,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:06:47,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:06:47,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:06:47,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:06:47,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:06:47,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:06:47,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:06:47,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:06:47,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:06:47,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:06:47,495 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:06:47,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:06:47,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:06:47,497 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:06:47,498 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:06:47,498 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:06:47,498 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:06:47,498 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:06:47,499 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:06:47,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:06:47,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:06:47,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:06:47,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:06:47,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:06:47,502 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:06:47,503 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:06:47,503 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:06:47,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:06:47,503 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:06:47,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:06:47,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:06:47,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:06:47,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:06:47,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:47,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:06:47,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:06:47,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:06:47,506 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:06:47,506 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:06:47,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:06:47,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:06:47,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:06:47,507 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_d426146e-cb65-4c73-b079-9399ce138526/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ad56e04b6ab93ff162b70d622a1dbeae0350a0f6dc141a393bf37a9fe53f01 [2021-11-07 01:06:47,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:06:47,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:06:47,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:06:47,928 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:06:47,928 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:06:47,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2021-11-07 01:06:48,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data/267c16cc5/595561947ab44363af9452f1739b3c3a/FLAG3466ff944 [2021-11-07 01:06:49,138 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:06:49,139 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i [2021-11-07 01:06:49,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data/267c16cc5/595561947ab44363af9452f1739b3c3a/FLAG3466ff944 [2021-11-07 01:06:49,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/data/267c16cc5/595561947ab44363af9452f1739b3c3a [2021-11-07 01:06:49,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:06:49,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:06:49,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:49,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:06:49,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:06:49,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:49,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510990e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49, skipping insertion in model container [2021-11-07 01:06:49,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:49,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:06:49,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:49,920 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_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2021-11-07 01:06:49,927 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_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2021-11-07 01:06:49,950 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:49,956 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:51,073 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,077 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,125 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,574 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:51,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:51,578 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:51,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:51,592 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:51,596 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:51,597 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:51,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:51,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:51,604 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:51,786 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:51,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,810 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:51,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:52,094 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:06:52,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:52,174 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_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2021-11-07 01:06:52,175 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_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2021-11-07 01:06:52,184 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:52,185 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:52,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,262 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,273 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,276 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:52,355 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:52,356 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:52,358 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:52,359 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:52,367 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:52,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:52,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:52,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:52,375 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:52,417 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:52,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,449 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:52,592 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:06:52,604 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_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4505,4518] [2021-11-07 01:06:52,605 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_d426146e-cb65-4c73-b079-9399ce138526/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness.i[4565,4578] [2021-11-07 01:06:52,606 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:52,607 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:52,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,717 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:52,718 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:52,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:52,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:52,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:52,722 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:52,722 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:52,723 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:52,724 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:52,724 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:52,751 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:52,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,787 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:52,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:53,266 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:06:53,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53 WrapperNode [2021-11-07 01:06:53,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:53,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:53,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:06:53,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:06:53,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:53,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:06:53,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:06:53,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:06:53,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:06:53,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:06:53,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:06:53,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:06:53,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (1/1) ... [2021-11-07 01:06:53,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:53,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:06:53,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:06:53,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:06:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:06:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:06:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:06:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:06:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:06:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:06:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:06:53,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:06:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:06:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:06:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:06:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:06:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:06:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:06:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:06:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:07:09,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:07:09,702 INFO L299 CfgBuilder]: Removed 121 assume(true) statements. [2021-11-07 01:07:09,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:07:09 BoogieIcfgContainer [2021-11-07 01:07:09,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:07:09,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:07:09,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:07:09,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:07:09,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:06:49" (1/3) ... [2021-11-07 01:07:09,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7256c79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:07:09, skipping insertion in model container [2021-11-07 01:07:09,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:53" (2/3) ... [2021-11-07 01:07:09,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7256c79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:07:09, skipping insertion in model container [2021-11-07 01:07:09,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:07:09" (3/3) ... [2021-11-07 01:07:09,714 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness.i [2021-11-07 01:07:09,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:07:09,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-07 01:07:09,773 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:07:09,779 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 01:07:09,779 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-07 01:07:09,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 252 states, 236 states have (on average 1.4703389830508475) internal successors, (347), 251 states have internal predecessors, (347), 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 01:07:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 01:07:09,810 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:09,811 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:09,811 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:07:09,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:09,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1615139171, now seen corresponding path program 1 times [2021-11-07 01:07:09,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:09,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389840371] [2021-11-07 01:07:09,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:09,841 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:09,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:09,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:09,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:07:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:14,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1837 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:07:14,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:14,550 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 01:07:14,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:14,780 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 01:07:14,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:14,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389840371] [2021-11-07 01:07:14,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389840371] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:14,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:14,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:07:14,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670871409] [2021-11-07 01:07:14,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:07:14,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:14,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:07:14,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:07:14,813 INFO L87 Difference]: Start difference. First operand has 252 states, 236 states have (on average 1.4703389830508475) internal successors, (347), 251 states have internal predecessors, (347), 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 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 01:07:14,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:14,873 INFO L93 Difference]: Finished difference Result 500 states and 689 transitions. [2021-11-07 01:07:14,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:07:14,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2021-11-07 01:07:14,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:14,895 INFO L225 Difference]: With dead ends: 500 [2021-11-07 01:07:14,895 INFO L226 Difference]: Without dead ends: 247 [2021-11-07 01:07:14,899 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 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 01:07:14,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-11-07 01:07:14,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-11-07 01:07:14,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 232 states have (on average 1.3577586206896552) internal successors, (315), 246 states have internal predecessors, (315), 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 01:07:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 315 transitions. [2021-11-07 01:07:14,947 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 315 transitions. Word has length 47 [2021-11-07 01:07:14,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:14,948 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 315 transitions. [2021-11-07 01:07:14,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 01:07:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 315 transitions. [2021-11-07 01:07:14,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 01:07:14,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:14,950 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:15,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:15,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:15,151 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:07:15,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:15,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1441117657, now seen corresponding path program 1 times [2021-11-07 01:07:15,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:15,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153526567] [2021-11-07 01:07:15,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:15,162 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:15,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:15,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:15,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:07:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:19,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1837 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:07:19,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:19,841 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 01:07:19,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:20,095 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 01:07:20,096 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:20,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153526567] [2021-11-07 01:07:20,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153526567] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:20,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:20,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:07:20,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43856506] [2021-11-07 01:07:20,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:07:20,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:20,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:07:20,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:07:20,100 INFO L87 Difference]: Start difference. First operand 247 states and 315 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 01:07:20,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:20,521 INFO L93 Difference]: Finished difference Result 468 states and 596 transitions. [2021-11-07 01:07:20,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:07:20,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2021-11-07 01:07:20,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:20,528 INFO L225 Difference]: With dead ends: 468 [2021-11-07 01:07:20,528 INFO L226 Difference]: Without dead ends: 247 [2021-11-07 01:07:20,530 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 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 01:07:20,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-11-07 01:07:20,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-11-07 01:07:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 232 states have (on average 1.3448275862068966) internal successors, (312), 246 states have internal predecessors, (312), 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 01:07:20,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 312 transitions. [2021-11-07 01:07:20,565 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 312 transitions. Word has length 47 [2021-11-07 01:07:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:20,565 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 312 transitions. [2021-11-07 01:07:20,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 01:07:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 312 transitions. [2021-11-07 01:07:20,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 01:07:20,571 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:20,571 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:20,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:20,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:20,799 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:07:20,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:20,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1376891287, now seen corresponding path program 1 times [2021-11-07 01:07:20,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:20,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425091624] [2021-11-07 01:07:20,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:20,809 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:20,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:20,811 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:20,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:07:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:25,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:07:25,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:25,506 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 01:07:25,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:25,751 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 01:07:25,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:25,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425091624] [2021-11-07 01:07:25,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425091624] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:25,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:25,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:07:25,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335908829] [2021-11-07 01:07:25,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:07:25,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:25,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:07:25,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:07:25,754 INFO L87 Difference]: Start difference. First operand 247 states and 312 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 01:07:26,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:26,143 INFO L93 Difference]: Finished difference Result 519 states and 662 transitions. [2021-11-07 01:07:26,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:07:26,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2021-11-07 01:07:26,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:26,146 INFO L225 Difference]: With dead ends: 519 [2021-11-07 01:07:26,147 INFO L226 Difference]: Without dead ends: 297 [2021-11-07 01:07:26,148 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 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 01:07:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-11-07 01:07:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 257. [2021-11-07 01:07:26,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 242 states have (on average 1.3305785123966942) internal successors, (322), 256 states have internal predecessors, (322), 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 01:07:26,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 322 transitions. [2021-11-07 01:07:26,187 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 322 transitions. Word has length 59 [2021-11-07 01:07:26,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:26,187 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 322 transitions. [2021-11-07 01:07:26,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 01:07:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 322 transitions. [2021-11-07 01:07:26,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 01:07:26,190 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:26,190 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:26,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:26,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:26,399 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:07:26,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:26,400 INFO L85 PathProgramCache]: Analyzing trace with hash -868688167, now seen corresponding path program 1 times [2021-11-07 01:07:26,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:26,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799860032] [2021-11-07 01:07:26,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:26,404 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:26,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:26,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:26,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:07:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:30,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 1863 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:07:30,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:31,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 01:07:31,512 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 01:07:31,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:31,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-07 01:07:32,209 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 01:07:32,209 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:32,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799860032] [2021-11-07 01:07:32,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799860032] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:32,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:32,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:07:32,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136373136] [2021-11-07 01:07:32,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:07:32,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:32,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:07:32,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:07:32,212 INFO L87 Difference]: Start difference. First operand 257 states and 322 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 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 01:07:39,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:39,275 INFO L93 Difference]: Finished difference Result 519 states and 654 transitions. [2021-11-07 01:07:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:07:39,278 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 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 59 [2021-11-07 01:07:39,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:39,280 INFO L225 Difference]: With dead ends: 519 [2021-11-07 01:07:39,280 INFO L226 Difference]: Without dead ends: 289 [2021-11-07 01:07:39,282 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2021-11-07 01:07:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-07 01:07:39,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 255. [2021-11-07 01:07:39,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 240 states have (on average 1.3291666666666666) internal successors, (319), 254 states have internal predecessors, (319), 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 01:07:39,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 319 transitions. [2021-11-07 01:07:39,301 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 319 transitions. Word has length 59 [2021-11-07 01:07:39,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:39,302 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 319 transitions. [2021-11-07 01:07:39,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 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 01:07:39,302 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 319 transitions. [2021-11-07 01:07:39,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 01:07:39,305 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:39,305 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:39,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:39,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:39,519 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:07:39,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:39,520 INFO L85 PathProgramCache]: Analyzing trace with hash 870622095, now seen corresponding path program 1 times [2021-11-07 01:07:39,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:39,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746640427] [2021-11-07 01:07:39,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:39,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:39,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:39,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:39,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:07:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:43,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1869 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:07:43,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:44,180 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:07:44,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:07:44,452 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 01:07:44,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:45,057 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 01:07:45,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:45,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746640427] [2021-11-07 01:07:45,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746640427] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:45,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:45,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:07:45,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890428684] [2021-11-07 01:07:45,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:07:45,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:45,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:07:45,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:07:45,059 INFO L87 Difference]: Start difference. First operand 255 states and 319 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 01:07:56,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:56,630 INFO L93 Difference]: Finished difference Result 752 states and 937 transitions. [2021-11-07 01:07:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:07:56,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 63 [2021-11-07 01:07:56,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:56,636 INFO L225 Difference]: With dead ends: 752 [2021-11-07 01:07:56,636 INFO L226 Difference]: Without dead ends: 517 [2021-11-07 01:07:56,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:07:56,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2021-11-07 01:07:56,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 288. [2021-11-07 01:07:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 273 states have (on average 1.3223443223443223) internal successors, (361), 287 states have internal predecessors, (361), 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 01:07:56,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 361 transitions. [2021-11-07 01:07:56,655 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 361 transitions. Word has length 63 [2021-11-07 01:07:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:56,656 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 361 transitions. [2021-11-07 01:07:56,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 01:07:56,656 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 361 transitions. [2021-11-07 01:07:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 01:07:56,659 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:56,659 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:56,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 01:07:56,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:56,875 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:07:56,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:56,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1764108433, now seen corresponding path program 1 times [2021-11-07 01:07:56,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:56,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443531243] [2021-11-07 01:07:56,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:56,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:56,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:56,882 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:56,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:08:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:01,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:08:01,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:01,581 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:08:01,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:08:02,259 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 01:08:02,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:03,031 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 01:08:03,031 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:03,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443531243] [2021-11-07 01:08:03,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443531243] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:03,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:03,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:08:03,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771100685] [2021-11-07 01:08:03,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:08:03,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:03,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:08:03,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:08:03,034 INFO L87 Difference]: Start difference. First operand 288 states and 361 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 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 01:08:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:19,644 INFO L93 Difference]: Finished difference Result 985 states and 1195 transitions. [2021-11-07 01:08:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:08:19,646 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 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 63 [2021-11-07 01:08:19,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:19,652 INFO L225 Difference]: With dead ends: 985 [2021-11-07 01:08:19,652 INFO L226 Difference]: Without dead ends: 682 [2021-11-07 01:08:19,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:08:19,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2021-11-07 01:08:19,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 286. [2021-11-07 01:08:19,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 271 states have (on average 1.2952029520295203) internal successors, (351), 285 states have internal predecessors, (351), 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 01:08:19,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 351 transitions. [2021-11-07 01:08:19,672 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 351 transitions. Word has length 63 [2021-11-07 01:08:19,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:19,672 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 351 transitions. [2021-11-07 01:08:19,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 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 01:08:19,673 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 351 transitions. [2021-11-07 01:08:19,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 01:08:19,675 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:19,675 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:19,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:19,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:19,891 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:08:19,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:19,891 INFO L85 PathProgramCache]: Analyzing trace with hash -22464504, now seen corresponding path program 1 times [2021-11-07 01:08:19,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:19,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191780073] [2021-11-07 01:08:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:19,896 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:19,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:19,898 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:19,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:08:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:24,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:08:24,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:24,733 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 01:08:24,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:24,990 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 01:08:24,990 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:24,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191780073] [2021-11-07 01:08:24,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191780073] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:24,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:24,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:08:24,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388865551] [2021-11-07 01:08:24,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:08:24,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:24,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:08:24,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:08:24,992 INFO L87 Difference]: Start difference. First operand 286 states and 351 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 01:08:25,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:25,289 INFO L93 Difference]: Finished difference Result 523 states and 644 transitions. [2021-11-07 01:08:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:08:25,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2021-11-07 01:08:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:25,294 INFO L225 Difference]: With dead ends: 523 [2021-11-07 01:08:25,294 INFO L226 Difference]: Without dead ends: 286 [2021-11-07 01:08:25,295 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 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 01:08:25,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-07 01:08:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2021-11-07 01:08:25,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 271 states have (on average 1.2878228782287824) internal successors, (349), 285 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 349 transitions. [2021-11-07 01:08:25,310 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 349 transitions. Word has length 65 [2021-11-07 01:08:25,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:25,310 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 349 transitions. [2021-11-07 01:08:25,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 01:08:25,311 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 349 transitions. [2021-11-07 01:08:25,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 01:08:25,312 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:25,313 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:25,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:25,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:25,535 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:08:25,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash 173665923, now seen corresponding path program 1 times [2021-11-07 01:08:25,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:25,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804096277] [2021-11-07 01:08:25,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:25,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:25,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:25,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:25,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:08:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:30,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:08:30,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:30,725 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 01:08:30,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:31,009 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 01:08:31,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:31,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804096277] [2021-11-07 01:08:31,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804096277] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:31,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:31,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:08:31,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793699189] [2021-11-07 01:08:31,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:08:31,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:31,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:08:31,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:08:31,011 INFO L87 Difference]: Start difference. First operand 286 states and 349 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 01:08:31,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:31,531 INFO L93 Difference]: Finished difference Result 487 states and 596 transitions. [2021-11-07 01:08:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:08:31,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2021-11-07 01:08:31,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:31,537 INFO L225 Difference]: With dead ends: 487 [2021-11-07 01:08:31,537 INFO L226 Difference]: Without dead ends: 286 [2021-11-07 01:08:31,538 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:08:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-07 01:08:31,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2021-11-07 01:08:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 271 states have (on average 1.2767527675276753) internal successors, (346), 285 states have internal predecessors, (346), 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 01:08:31,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 346 transitions. [2021-11-07 01:08:31,553 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 346 transitions. Word has length 67 [2021-11-07 01:08:31,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:31,554 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 346 transitions. [2021-11-07 01:08:31,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 01:08:31,555 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 346 transitions. [2021-11-07 01:08:31,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 01:08:31,556 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:31,556 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:31,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:31,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:31,771 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-07 01:08:31,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:31,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1920789310, now seen corresponding path program 1 times [2021-11-07 01:08:31,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:31,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532031814] [2021-11-07 01:08:31,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:31,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:31,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:31,776 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:31,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d426146e-cb65-4c73-b079-9399ce138526/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:08:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:36,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1879 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 01:08:36,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:37,503 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:08:37,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-07 01:08:37,668 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 01:08:37,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:54,746 WARN L207 SmtUtils]: Spent 15.59 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 01:08:54,751 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 01:08:54,752 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 132 treesize of output 775