./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_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_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/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_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/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_a01660b4-21b1-4116-8c9f-a018181eaa92/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 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:21:50,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:21:50,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:21:50,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:21:50,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:21:50,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:21:50,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:21:50,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:21:50,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:21:50,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:21:50,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:21:50,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:21:50,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:21:50,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:21:50,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:21:50,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:21:50,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:21:50,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:21:50,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:21:50,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:21:50,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:21:50,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:21:50,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:21:50,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:21:50,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:21:50,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:21:50,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:21:50,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:21:50,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:21:50,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:21:50,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:21:50,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:21:50,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:21:50,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:21:50,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:21:50,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:21:50,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:21:50,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:21:50,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:21:50,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:21:50,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:21:50,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:21:50,951 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:21:50,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:21:50,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:21:50,952 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:21:50,952 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:21:50,953 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:21:50,953 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:21:50,953 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:21:50,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:21:50,954 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:21:50,954 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:21:50,954 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:21:50,954 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:21:50,955 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:21:50,955 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:21:50,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:21:50,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:21:50,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:21:50,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:21:50,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:21:50,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:21:50,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:21:50,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:21:50,960 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:21:50,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:21:50,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:21:50,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:21:50,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:21:50,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:21:50,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:21:50,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:21:50,964 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:21:50,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:21:50,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:21:50,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:21:50,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:21:50,966 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_a01660b4-21b1-4116-8c9f-a018181eaa92/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 [2021-11-07 02:21:51,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:21:51,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:21:51,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:21:51,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:21:51,304 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:21:51,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-07 02:21:51,378 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data/d8adcd9a7/ed9e632150994479b4d1634aa61c0e8b/FLAGd8a136330 [2021-11-07 02:21:52,102 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:21:52,102 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-07 02:21:52,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data/d8adcd9a7/ed9e632150994479b4d1634aa61c0e8b/FLAGd8a136330 [2021-11-07 02:21:52,228 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data/d8adcd9a7/ed9e632150994479b4d1634aa61c0e8b [2021-11-07 02:21:52,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:21:52,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:21:52,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:21:52,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:21:52,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:21:52,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:52" (1/1) ... [2021-11-07 02:21:52,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707831d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:52, skipping insertion in model container [2021-11-07 02:21:52,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:52" (1/1) ... [2021-11-07 02:21:52,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:21:52,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:21:52,760 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_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-07 02:21:52,774 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_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-07 02:21:52,795 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:21:52,799 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:21:53,649 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:21:53,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,771 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,773 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,774 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,803 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,813 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:53,814 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:54,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:21:54,213 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:21:54,214 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:21:54,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:21:54,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:21:54,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:21:54,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:21:54,220 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:21:54,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:21:54,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:21:54,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:54,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:21:54,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:21:54,530 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 02:21:54,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3af8c243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:54, skipping insertion in model container [2021-11-07 02:21:54,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:21:54,531 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:21:54,533 INFO L168 Benchmark]: Toolchain (without parser) took 2298.17 ms. Allocated memory is still 119.5 MB. Free memory was 94.8 MB in the beginning and 82.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:21:54,534 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory is still 69.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:21:54,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2295.27 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 82.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:21:54,536 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 90.2 MB. Free memory is still 69.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2295.27 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 82.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: 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_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/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_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/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_a01660b4-21b1-4116-8c9f-a018181eaa92/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 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:21:57,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:21:57,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:21:57,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:21:57,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:21:57,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:21:57,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:21:57,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:21:57,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:21:57,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:21:57,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:21:57,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:21:57,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:21:57,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:21:57,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:21:57,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:21:57,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:21:57,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:21:57,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:21:57,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:21:57,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:21:57,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:21:57,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:21:57,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:21:57,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:21:57,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:21:57,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:21:57,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:21:57,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:21:57,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:21:57,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:21:57,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:21:57,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:21:57,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:21:57,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:21:57,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:21:57,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:21:57,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:21:57,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:21:57,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:21:57,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:21:57,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:21:57,216 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:21:57,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:21:57,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:21:57,218 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:21:57,218 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:21:57,219 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:21:57,219 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:21:57,219 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:21:57,219 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:21:57,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:21:57,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:21:57,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:21:57,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:21:57,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:21:57,223 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:21:57,223 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:21:57,223 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:21:57,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:21:57,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:21:57,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:21:57,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:21:57,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:21:57,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:21:57,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:21:57,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:21:57,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:21:57,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:21:57,225 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:21:57,226 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:21:57,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:21:57,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:21:57,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:21:57,226 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_a01660b4-21b1-4116-8c9f-a018181eaa92/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 877e83a63a602219ce02028b5212cf6c29aa8f33a031ee39d52c3c671213dc91 [2021-11-07 02:21:57,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:21:57,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:21:57,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:21:57,696 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:21:57,696 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:21:57,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-07 02:21:57,772 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data/4b2355ada/87abf0d5971840e8953c526408c7ae2e/FLAG4c4fef66d [2021-11-07 02:21:58,763 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:21:58,770 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2021-11-07 02:21:58,818 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data/4b2355ada/87abf0d5971840e8953c526408c7ae2e/FLAG4c4fef66d [2021-11-07 02:21:59,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/data/4b2355ada/87abf0d5971840e8953c526408c7ae2e [2021-11-07 02:21:59,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:21:59,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:21:59,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:21:59,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:21:59,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:21:59,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:59" (1/1) ... [2021-11-07 02:21:59,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b430044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:21:59, skipping insertion in model container [2021-11-07 02:21:59,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:21:59" (1/1) ... [2021-11-07 02:21:59,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:21:59,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:21:59,683 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_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-07 02:21:59,689 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_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-07 02:21:59,709 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:21:59,714 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:22:00,556 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:22:00,642 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,644 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:00,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:22:01,090 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:22:01,091 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:22:01,092 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:22:01,094 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:22:01,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:22:01,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:22:01,097 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:22:01,098 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:22:01,099 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:22:01,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:22:01,417 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:22:01,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:22:01,482 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_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-07 02:22:01,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-07 02:22:01,485 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:22:01,486 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:22:01,533 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:22:01,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,628 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:22:01,629 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:22:01,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:22:01,632 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:22:01,647 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:22:01,648 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:22:01,648 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:22:01,649 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:22:01,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:22:01,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:22:01,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:22:01,791 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:22:01,820 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_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2021-11-07 02:22:01,821 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_a01660b4-21b1-4116-8c9f-a018181eaa92/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2021-11-07 02:22:01,823 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:22:01,824 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:22:01,885 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:22:01,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,944 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,945 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,947 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,951 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:01,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:02,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:22:02,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:22:02,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:22:02,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:22:02,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:22:02,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:22:02,013 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:22:02,014 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:22:02,015 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:22:02,015 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:22:02,056 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:02,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:22:02,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:22:02,634 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:22:02,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02 WrapperNode [2021-11-07 02:22:02,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:22:02,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:22:02,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:22:02,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:22:02,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:02,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:02,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:22:02,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:22:02,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:22:02,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:22:02,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:02,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:02,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:02,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:02,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:02,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:02,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:03,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:22:03,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:22:03,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:22:03,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:22:03,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (1/1) ... [2021-11-07 02:22:03,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:22:03,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:22:03,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:22:03,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:22:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:22:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:22:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:22:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:22:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:22:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:22:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:22:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:22:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:22:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:22:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:22:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 02:22:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:22:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:22:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:22:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:22:21,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:22:21,132 INFO L299 CfgBuilder]: Removed 218 assume(true) statements. [2021-11-07 02:22:21,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:22:21 BoogieIcfgContainer [2021-11-07 02:22:21,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:22:21,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:22:21,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:22:21,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:22:21,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:21:59" (1/3) ... [2021-11-07 02:22:21,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9964d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:22:21, skipping insertion in model container [2021-11-07 02:22:21,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:02" (2/3) ... [2021-11-07 02:22:21,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9964d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:22:21, skipping insertion in model container [2021-11-07 02:22:21,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:22:21" (3/3) ... [2021-11-07 02:22:21,144 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2021-11-07 02:22:21,150 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:22:21,150 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-07 02:22:21,205 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:22:21,211 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 02:22:21,211 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-07 02:22:21,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 244 states have (on average 1.4385245901639345) internal successors, (351), 260 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 02:22:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 02:22:21,243 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:21,244 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] [2021-11-07 02:22:21,245 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:22:21,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:21,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1330632047, now seen corresponding path program 1 times [2021-11-07 02:22:21,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:21,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929705094] [2021-11-07 02:22:21,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:21,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:21,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:21,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:21,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:22:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:25,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:22:25,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:26,024 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 02:22:26,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:26,357 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 02:22:26,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:26,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929705094] [2021-11-07 02:22:26,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929705094] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:26,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:26,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:22:26,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437591115] [2021-11-07 02:22:26,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:22:26,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:26,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:22:26,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:22:26,383 INFO L87 Difference]: Start difference. First operand has 261 states, 244 states have (on average 1.4385245901639345) internal successors, (351), 260 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) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:26,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:26,423 INFO L93 Difference]: Finished difference Result 518 states and 697 transitions. [2021-11-07 02:22:26,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:22:26,424 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-07 02:22:26,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:26,435 INFO L225 Difference]: With dead ends: 518 [2021-11-07 02:22:26,436 INFO L226 Difference]: Without dead ends: 254 [2021-11-07 02:22:26,439 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 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 02:22:26,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-07 02:22:26,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-07 02:22:26,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 238 states have (on average 1.2773109243697478) internal successors, (304), 253 states have internal predecessors, (304), 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 02:22:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 304 transitions. [2021-11-07 02:22:26,491 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 304 transitions. Word has length 62 [2021-11-07 02:22:26,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:26,491 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 304 transitions. [2021-11-07 02:22:26,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:26,492 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 304 transitions. [2021-11-07 02:22:26,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 02:22:26,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:26,495 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] [2021-11-07 02:22:26,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:26,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:26,710 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:22:26,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:26,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1348565053, now seen corresponding path program 1 times [2021-11-07 02:22:26,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:26,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601569632] [2021-11-07 02:22:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:26,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:26,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:26,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:26,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:22:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:31,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:22:31,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:31,347 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 02:22:31,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:31,648 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 02:22:31,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:31,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601569632] [2021-11-07 02:22:31,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601569632] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:31,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:31,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:22:31,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474253331] [2021-11-07 02:22:31,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:22:31,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:31,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:22:31,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:22:31,652 INFO L87 Difference]: Start difference. First operand 254 states and 304 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:31,762 INFO L93 Difference]: Finished difference Result 496 states and 595 transitions. [2021-11-07 02:22:31,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:22:31,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-07 02:22:31,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:31,776 INFO L225 Difference]: With dead ends: 496 [2021-11-07 02:22:31,777 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 02:22:31,779 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:22:31,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 02:22:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 02:22:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.275) internal successors, (306), 255 states have internal predecessors, (306), 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 02:22:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 306 transitions. [2021-11-07 02:22:31,796 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 306 transitions. Word has length 62 [2021-11-07 02:22:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:31,796 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 306 transitions. [2021-11-07 02:22:31,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 306 transitions. [2021-11-07 02:22:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 02:22:31,799 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:31,800 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] [2021-11-07 02:22:31,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:32,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:32,014 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:22:32,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:32,014 INFO L85 PathProgramCache]: Analyzing trace with hash 87647803, now seen corresponding path program 1 times [2021-11-07 02:22:32,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:32,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881173608] [2021-11-07 02:22:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:32,023 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:32,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:32,024 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:32,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:22:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:36,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:22:36,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:36,618 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 02:22:36,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:37,027 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 02:22:37,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:37,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881173608] [2021-11-07 02:22:37,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881173608] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:37,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:37,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:22:37,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897623612] [2021-11-07 02:22:37,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:22:37,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:37,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:22:37,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:22:37,030 INFO L87 Difference]: Start difference. First operand 256 states and 306 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:40,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:40,121 INFO L93 Difference]: Finished difference Result 480 states and 572 transitions. [2021-11-07 02:22:40,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:22:40,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-07 02:22:40,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:40,125 INFO L225 Difference]: With dead ends: 480 [2021-11-07 02:22:40,125 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 02:22:40,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 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 02:22:40,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 02:22:40,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 02:22:40,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2666666666666666) internal successors, (304), 255 states have internal predecessors, (304), 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 02:22:40,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 304 transitions. [2021-11-07 02:22:40,148 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 304 transitions. Word has length 62 [2021-11-07 02:22:40,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:40,148 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 304 transitions. [2021-11-07 02:22:40,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:22:40,149 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 304 transitions. [2021-11-07 02:22:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 02:22:40,151 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:40,151 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, 1] [2021-11-07 02:22:40,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:40,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:40,374 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:22:40,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:40,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1267963945, now seen corresponding path program 1 times [2021-11-07 02:22:40,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:40,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509716302] [2021-11-07 02:22:40,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:40,379 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:40,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:40,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:40,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:22:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:45,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:22:45,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:45,548 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 02:22:45,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:22:46,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:46,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509716302] [2021-11-07 02:22:46,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509716302] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:46,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:46,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:22:46,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942625448] [2021-11-07 02:22:46,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:22:46,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:46,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:22:46,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:22:46,024 INFO L87 Difference]: Start difference. First operand 256 states and 304 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 02:22:49,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:49,087 INFO L93 Difference]: Finished difference Result 447 states and 528 transitions. [2021-11-07 02:22:49,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:22:49,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 70 [2021-11-07 02:22:49,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:49,091 INFO L225 Difference]: With dead ends: 447 [2021-11-07 02:22:49,091 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 02:22:49,092 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 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 02:22:49,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 02:22:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 02:22:49,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2583333333333333) internal successors, (302), 255 states have internal predecessors, (302), 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 02:22:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 302 transitions. [2021-11-07 02:22:49,110 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 302 transitions. Word has length 70 [2021-11-07 02:22:49,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:49,111 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 302 transitions. [2021-11-07 02:22:49,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 02:22:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 302 transitions. [2021-11-07 02:22:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 02:22:49,113 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:49,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:22:49,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:49,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:49,337 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:22:49,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:49,338 INFO L85 PathProgramCache]: Analyzing trace with hash -187050949, now seen corresponding path program 1 times [2021-11-07 02:22:49,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:49,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443267973] [2021-11-07 02:22:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:49,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:49,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:49,346 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:49,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:22:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:22:54,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 1848 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:22:54,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:22:55,182 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 02:22:55,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:22:55,760 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 02:22:55,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:22:55,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443267973] [2021-11-07 02:22:55,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443267973] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:22:55,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:22:55,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:22:55,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683846888] [2021-11-07 02:22:55,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:22:55,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:22:55,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:22:55,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:22:55,762 INFO L87 Difference]: Start difference. First operand 256 states and 302 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 02:22:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:22:58,933 INFO L93 Difference]: Finished difference Result 403 states and 474 transitions. [2021-11-07 02:22:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:22:58,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 78 [2021-11-07 02:22:58,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:22:58,936 INFO L225 Difference]: With dead ends: 403 [2021-11-07 02:22:58,937 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 02:22:58,937 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 151 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 02:22:58,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 02:22:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 02:22:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2541666666666667) internal successors, (301), 255 states have internal predecessors, (301), 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 02:22:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 301 transitions. [2021-11-07 02:22:58,950 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 301 transitions. Word has length 78 [2021-11-07 02:22:58,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:22:58,951 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 301 transitions. [2021-11-07 02:22:58,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 02:22:58,951 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 301 transitions. [2021-11-07 02:22:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 02:22:58,953 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:22:58,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:22:59,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:22:59,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:22:59,170 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:22:59,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:22:59,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1999055391, now seen corresponding path program 1 times [2021-11-07 02:22:59,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:22:59,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784834266] [2021-11-07 02:22:59,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:22:59,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:22:59,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:22:59,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:22:59,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:23:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:04,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1907 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:23:04,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:05,084 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 02:23:05,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:05,708 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 02:23:05,708 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:23:05,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784834266] [2021-11-07 02:23:05,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784834266] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:23:05,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:23:05,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:23:05,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884037620] [2021-11-07 02:23:05,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:23:05,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:23:05,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:23:05,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:23:05,710 INFO L87 Difference]: Start difference. First operand 256 states and 301 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 02:23:08,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:23:08,738 INFO L93 Difference]: Finished difference Result 387 states and 452 transitions. [2021-11-07 02:23:08,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:23:08,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 86 [2021-11-07 02:23:08,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:23:08,742 INFO L225 Difference]: With dead ends: 387 [2021-11-07 02:23:08,742 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 02:23:08,743 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:23:08,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 02:23:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 02:23:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.25) internal successors, (300), 255 states have internal predecessors, (300), 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 02:23:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 300 transitions. [2021-11-07 02:23:08,755 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 300 transitions. Word has length 86 [2021-11-07 02:23:08,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:23:08,756 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 300 transitions. [2021-11-07 02:23:08,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 02:23:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 300 transitions. [2021-11-07 02:23:08,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 02:23:08,757 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:23:08,758 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, 1, 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 02:23:08,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:23:08,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:23:08,973 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:23:08,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:23:08,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1181662467, now seen corresponding path program 1 times [2021-11-07 02:23:08,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:23:08,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405442509] [2021-11-07 02:23:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:08,981 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:23:08,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:23:08,982 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:23:09,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:23:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:23:14,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1966 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:23:14,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:23:15,252 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 02:23:15,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:23:15,937 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 02:23:15,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:23:15,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405442509] [2021-11-07 02:23:15,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405442509] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:23:15,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:23:15,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:23:15,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485519548] [2021-11-07 02:23:15,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:23:15,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:23:15,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:23:15,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:23:15,940 INFO L87 Difference]: Start difference. First operand 256 states and 300 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 02:23:19,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:23:19,012 INFO L93 Difference]: Finished difference Result 371 states and 430 transitions. [2021-11-07 02:23:19,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:23:19,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 94 [2021-11-07 02:23:19,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:23:19,015 INFO L225 Difference]: With dead ends: 371 [2021-11-07 02:23:19,015 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 02:23:19,015 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 183 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 02:23:19,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 02:23:19,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-07 02:23:19,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 240 states have (on average 1.2458333333333333) internal successors, (299), 255 states have internal predecessors, (299), 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 02:23:19,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 299 transitions. [2021-11-07 02:23:19,028 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 299 transitions. Word has length 94 [2021-11-07 02:23:19,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:23:19,029 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 299 transitions. [2021-11-07 02:23:19,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 02:23:19,030 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 299 transitions. [2021-11-07 02:23:19,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-07 02:23:19,031 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:23:19,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:23:19,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:23:19,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:23:19,246 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:23:19,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:23:19,246 INFO L85 PathProgramCache]: Analyzing trace with hash 377228519, now seen corresponding path program 1 times [2021-11-07 02:23:19,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:23:19,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325309907] [2021-11-07 02:23:19,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:23:19,250 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:23:19,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:23:19,250 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:23:19,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01660b4-21b1-4116-8c9f-a018181eaa92/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process