./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_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_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/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_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/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_1193b3bf-f170-4238-8aa7-6313d000eeff/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 ffbf3b1479afd9aaa2ec45fcd2782998a39316f97238379433376f7ba5094eb5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:45:41,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:45:41,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:45:41,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:45:41,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:45:41,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:45:41,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:45:41,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:45:41,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:45:41,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:45:41,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:45:41,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:45:41,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:45:41,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:45:41,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:45:41,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:45:41,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:45:41,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:45:41,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:45:41,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:45:41,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:45:41,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:45:41,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:45:41,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:45:41,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:45:41,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:45:41,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:45:41,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:45:41,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:45:41,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:45:41,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:45:41,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:45:41,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:45:41,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:45:41,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:45:41,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:45:41,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:45:41,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:45:41,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:45:41,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:45:41,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:45:41,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:45:41,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:45:41,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:45:41,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:45:41,850 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:45:41,850 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:45:41,850 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:45:41,851 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:45:41,851 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:45:41,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:45:41,858 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:45:41,859 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:45:41,859 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:45:41,859 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:45:41,860 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:45:41,860 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:45:41,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:45:41,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:45:41,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:45:41,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:45:41,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:45:41,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:45:41,862 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:45:41,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:45:41,863 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:45:41,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:45:41,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:45:41,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:45:41,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:45:41,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:45:41,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:45:41,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:45:41,866 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:45:41,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:45:41,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:45:41,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:45:41,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:45:41,867 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_1193b3bf-f170-4238-8aa7-6313d000eeff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffbf3b1479afd9aaa2ec45fcd2782998a39316f97238379433376f7ba5094eb5 [2021-11-07 01:45:42,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:45:42,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:45:42,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:45:42,236 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:45:42,237 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:45:42,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2021-11-07 01:45:42,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data/d5d7cf00c/c4ec1d90668b40e2893815148da788fe/FLAG560616fc7 [2021-11-07 01:45:43,243 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:45:43,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2021-11-07 01:45:43,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data/d5d7cf00c/c4ec1d90668b40e2893815148da788fe/FLAG560616fc7 [2021-11-07 01:45:43,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data/d5d7cf00c/c4ec1d90668b40e2893815148da788fe [2021-11-07 01:45:43,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:45:43,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:45:43,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:45:43,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:45:43,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:45:43,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:45:43" (1/1) ... [2021-11-07 01:45:43,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9cbc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:43, skipping insertion in model container [2021-11-07 01:45:43,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:45:43" (1/1) ... [2021-11-07 01:45:43,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:45:43,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:45:44,247 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_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4501,4514] [2021-11-07 01:45:44,265 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_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4561,4574] [2021-11-07 01:45:44,294 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:45:44,303 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:45:45,679 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:45:45,802 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,806 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,837 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,842 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,842 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,849 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:45,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:46,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:45:46,296 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:45:46,297 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:45:46,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:45:46,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:45:46,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:45:46,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:45:46,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:45:46,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:45:46,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:45:46,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:46,459 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:46,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:45:46,542 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:45:46,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@ca73791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:46, skipping insertion in model container [2021-11-07 01:45:46,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:45:46,544 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:45:46,546 INFO L168 Benchmark]: Toolchain (without parser) took 2792.90 ms. Allocated memory is still 144.7 MB. Free memory was 106.8 MB in the beginning and 84.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:45:46,547 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:45:46,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2789.62 ms. Allocated memory is still 144.7 MB. Free memory was 106.4 MB in the beginning and 84.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:45:46,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2789.62 ms. Allocated memory is still 144.7 MB. Free memory was 106.4 MB in the beginning and 84.8 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 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_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/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_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/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_1193b3bf-f170-4238-8aa7-6313d000eeff/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 ffbf3b1479afd9aaa2ec45fcd2782998a39316f97238379433376f7ba5094eb5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:45:49,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:45:49,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:45:49,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:45:49,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:45:49,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:45:49,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:45:49,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:45:49,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:45:49,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:45:49,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:45:49,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:45:49,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:45:49,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:45:49,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:45:49,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:45:49,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:45:49,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:45:49,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:45:49,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:45:49,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:45:49,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:45:49,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:45:49,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:45:49,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:45:49,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:45:49,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:45:49,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:45:49,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:45:49,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:45:49,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:45:49,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:45:49,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:45:49,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:45:49,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:45:49,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:45:49,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:45:49,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:45:49,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:45:49,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:45:49,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:45:49,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:45:49,257 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:45:49,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:45:49,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:45:49,259 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:45:49,259 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:45:49,259 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:45:49,260 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:45:49,260 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:45:49,260 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:45:49,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:45:49,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:45:49,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:45:49,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:45:49,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:45:49,263 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:45:49,264 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:45:49,264 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:45:49,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:45:49,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:45:49,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:45:49,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:45:49,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:45:49,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:45:49,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:45:49,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:45:49,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:45:49,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:45:49,266 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:45:49,266 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:45:49,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:45:49,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:45:49,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:45:49,267 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_1193b3bf-f170-4238-8aa7-6313d000eeff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffbf3b1479afd9aaa2ec45fcd2782998a39316f97238379433376f7ba5094eb5 [2021-11-07 01:45:49,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:45:49,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:45:49,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:45:49,728 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:45:49,729 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:45:49,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2021-11-07 01:45:49,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data/0aa060a5a/bced858d349f414d869a91cf66d32910/FLAG07b4b5f29 [2021-11-07 01:45:50,706 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:45:50,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i [2021-11-07 01:45:50,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data/0aa060a5a/bced858d349f414d869a91cf66d32910/FLAG07b4b5f29 [2021-11-07 01:45:51,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/data/0aa060a5a/bced858d349f414d869a91cf66d32910 [2021-11-07 01:45:51,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:45:51,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:45:51,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:45:51,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:45:51,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:45:51,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:45:51" (1/1) ... [2021-11-07 01:45:51,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc32a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:51, skipping insertion in model container [2021-11-07 01:45:51,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:45:51" (1/1) ... [2021-11-07 01:45:51,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:45:51,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:45:51,673 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_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4501,4514] [2021-11-07 01:45:51,682 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_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4561,4574] [2021-11-07 01:45:51,715 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:45:51,729 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:45:52,649 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:45:52,733 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,734 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:52,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,161 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:45:53,163 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:45:53,164 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:45:53,165 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:45:53,167 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:45:53,168 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:45:53,169 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:45:53,170 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:45:53,171 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:45:53,171 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:45:53,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:45:53,451 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:45:53,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:45:53,539 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_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4501,4514] [2021-11-07 01:45:53,540 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_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4561,4574] [2021-11-07 01:45:53,541 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:45:53,542 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:45:53,587 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:45:53,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,617 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:45:53,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:45:53,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:45:53,696 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:45:53,699 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:45:53,700 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:45:53,700 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:45:53,701 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:45:53,701 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:45:53,702 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:45:53,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:45:53,851 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:45:53,878 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_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4501,4514] [2021-11-07 01:45:53,889 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_1193b3bf-f170-4238-8aa7-6313d000eeff/sv-benchmarks/c/aws-c-common/aws_array_list_init_dynamic_harness.i[4561,4574] [2021-11-07 01:45:53,891 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:45:53,892 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:45:53,937 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:45:53,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,961 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,961 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,962 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,962 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,977 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,978 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,986 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:53,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:54,043 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:45:54,044 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:45:54,045 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:45:54,047 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:45:54,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:45:54,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:45:54,049 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:45:54,050 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:45:54,051 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:45:54,051 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:45:54,113 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:54,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:45:54,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:45:54,474 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:45:54,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54 WrapperNode [2021-11-07 01:45:54,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:45:54,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:45:54,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:45:54,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:45:54,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:45:54,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:45:54,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:45:54,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:45:54,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:45:54,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:45:54,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:45:54,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:45:54,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (1/1) ... [2021-11-07 01:45:54,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:45:54,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:45:54,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:45:55,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:45:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:45:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:45:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:45:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:45:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:45:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:45:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:45:55,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:45:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:45:55,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:45:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:45:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:45:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:45:55,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:45:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:46:09,860 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:46:09,866 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2021-11-07 01:46:09,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:09 BoogieIcfgContainer [2021-11-07 01:46:09,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:46:09,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:46:09,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:46:09,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:46:09,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:45:51" (1/3) ... [2021-11-07 01:46:09,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d541b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:09, skipping insertion in model container [2021-11-07 01:46:09,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:45:54" (2/3) ... [2021-11-07 01:46:09,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d541b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:46:09, skipping insertion in model container [2021-11-07 01:46:09,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:46:09" (3/3) ... [2021-11-07 01:46:09,881 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_dynamic_harness.i [2021-11-07 01:46:09,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:46:09,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-07 01:46:09,952 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:46:09,958 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:46:09,958 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-07 01:46:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 119 states have (on average 1.4453781512605042) internal successors, (172), 128 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:09,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:46:09,983 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:09,984 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] [2021-11-07 01:46:09,985 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 01:46:09,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:09,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1447700352, now seen corresponding path program 1 times [2021-11-07 01:46:10,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:10,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313759286] [2021-11-07 01:46:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:10,014 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:10,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:10,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:10,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:46:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:14,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1508 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:46:14,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:14,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:14,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:14,530 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:14,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313759286] [2021-11-07 01:46:14,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313759286] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:14,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:14,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:46:14,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710612073] [2021-11-07 01:46:14,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:46:14,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:14,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:46:14,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:46:14,559 INFO L87 Difference]: Start difference. First operand has 129 states, 119 states have (on average 1.4453781512605042) internal successors, (172), 128 states have internal predecessors, (172), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:14,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:14,609 INFO L93 Difference]: Finished difference Result 254 states and 339 transitions. [2021-11-07 01:46:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:46:14,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-07 01:46:14,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:14,623 INFO L225 Difference]: With dead ends: 254 [2021-11-07 01:46:14,623 INFO L226 Difference]: Without dead ends: 122 [2021-11-07 01:46:14,629 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:46:14,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-07 01:46:14,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-07 01:46:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 113 states have (on average 1.2654867256637168) internal successors, (143), 121 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2021-11-07 01:46:14,689 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 25 [2021-11-07 01:46:14,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:14,690 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2021-11-07 01:46:14,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:14,691 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2021-11-07 01:46:14,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 01:46:14,695 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:14,695 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] [2021-11-07 01:46:14,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:14,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:14,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 01:46:14,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1187359242, now seen corresponding path program 1 times [2021-11-07 01:46:14,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:14,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950690462] [2021-11-07 01:46:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:14,916 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:14,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:14,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:14,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:46:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:18,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:46:18,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:19,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:19,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:19,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:19,304 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:19,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950690462] [2021-11-07 01:46:19,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950690462] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:19,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:19,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:46:19,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177437426] [2021-11-07 01:46:19,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:46:19,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:19,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:46:19,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:46:19,324 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:19,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:19,384 INFO L93 Difference]: Finished difference Result 232 states and 275 transitions. [2021-11-07 01:46:19,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:46:19,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-07 01:46:19,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:19,390 INFO L225 Difference]: With dead ends: 232 [2021-11-07 01:46:19,390 INFO L226 Difference]: Without dead ends: 124 [2021-11-07 01:46:19,392 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:46:19,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-07 01:46:19,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-11-07 01:46:19,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 115 states have (on average 1.2608695652173914) internal successors, (145), 123 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:19,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2021-11-07 01:46:19,415 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 28 [2021-11-07 01:46:19,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:19,416 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2021-11-07 01:46:19,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:19,416 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2021-11-07 01:46:19,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:46:19,418 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:19,418 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:19,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:19,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:19,644 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 01:46:19,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:19,645 INFO L85 PathProgramCache]: Analyzing trace with hash -428375114, now seen corresponding path program 1 times [2021-11-07 01:46:19,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:19,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124063742] [2021-11-07 01:46:19,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:19,649 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:19,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:19,653 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:19,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:46:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:23,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:46:23,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:24,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:24,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:24,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:24,709 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:24,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124063742] [2021-11-07 01:46:24,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124063742] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:46:24,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [913405595] [2021-11-07 01:46:24,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:24,709 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:46:24,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:46:24,719 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:46:24,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-07 01:46:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:26,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:46:26,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:26,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:46:26,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:46:26,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [913405595] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:26,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:46:26,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-11-07 01:46:26,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287384437] [2021-11-07 01:46:26,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:46:26,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:26,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:46:26,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:46:26,650 INFO L87 Difference]: Start difference. First operand 124 states and 145 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:27,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:27,126 INFO L93 Difference]: Finished difference Result 270 states and 316 transitions. [2021-11-07 01:46:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:46:27,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 01:46:27,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:27,131 INFO L225 Difference]: With dead ends: 270 [2021-11-07 01:46:27,132 INFO L226 Difference]: Without dead ends: 217 [2021-11-07 01:46:27,133 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:46:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-07 01:46:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 127. [2021-11-07 01:46:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 126 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2021-11-07 01:46:27,146 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 30 [2021-11-07 01:46:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:27,147 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2021-11-07 01:46:27,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2021-11-07 01:46:27,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:46:27,149 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:27,149 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:27,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:27,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:46:27,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:27,550 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 01:46:27,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:27,551 INFO L85 PathProgramCache]: Analyzing trace with hash -787499658, now seen corresponding path program 1 times [2021-11-07 01:46:27,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:27,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514178663] [2021-11-07 01:46:27,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:27,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:27,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:27,556 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:27,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:46:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:31,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:46:31,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:31,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:31,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:32,112 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:32,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514178663] [2021-11-07 01:46:32,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514178663] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:46:32,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [262210767] [2021-11-07 01:46:32,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:32,113 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:46:32,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:46:32,115 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:46:32,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 01:46:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:36,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:46:36,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:36,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:36,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [262210767] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:46:36,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406202793] [2021-11-07 01:46:36,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:36,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:46:36,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:46:36,560 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:46:36,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 01:46:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:38,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:46:38,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:46:38,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:38,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:46:38,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406202793] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:38,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-07 01:46:38,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 4] imperfect sequences [5, 5, 5, 5] total 16 [2021-11-07 01:46:38,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285402930] [2021-11-07 01:46:38,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:46:38,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:38,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:46:38,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:46:38,945 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:41,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:41,474 INFO L93 Difference]: Finished difference Result 146 states and 172 transitions. [2021-11-07 01:46:41,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:46:41,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 01:46:41,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:41,477 INFO L225 Difference]: With dead ends: 146 [2021-11-07 01:46:41,477 INFO L226 Difference]: Without dead ends: 144 [2021-11-07 01:46:41,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2021-11-07 01:46:41,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-07 01:46:41,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 129. [2021-11-07 01:46:41,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 120 states have (on average 1.25) internal successors, (150), 128 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:41,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2021-11-07 01:46:41,490 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 30 [2021-11-07 01:46:41,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:41,491 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2021-11-07 01:46:41,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:41,491 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2021-11-07 01:46:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:46:41,492 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:41,493 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:41,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:41,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-07 01:46:41,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:42,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:46:42,108 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 01:46:42,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:42,109 INFO L85 PathProgramCache]: Analyzing trace with hash -787440076, now seen corresponding path program 1 times [2021-11-07 01:46:42,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:42,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143103716] [2021-11-07 01:46:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:42,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:42,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:42,112 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:42,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:46:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:46,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:46:46,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:46,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:46,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:46,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:46,815 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:46,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143103716] [2021-11-07 01:46:46,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143103716] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:46:46,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1549896914] [2021-11-07 01:46:46,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:46,816 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:46:46,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:46:46,822 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:46:46,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-07 01:46:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:50,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:46:50,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:51,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:51,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:51,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1549896914] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:46:51,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756774514] [2021-11-07 01:46:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:51,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:46:51,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:46:51,177 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:46:51,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 01:46:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:52,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:46:52,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:52,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:52,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:46:53,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756774514] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:46:53,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:46:53,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2021-11-07 01:46:53,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288514499] [2021-11-07 01:46:53,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:46:53,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:53,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:46:53,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:46:53,359 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:53,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:53,840 INFO L93 Difference]: Finished difference Result 246 states and 291 transitions. [2021-11-07 01:46:53,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:46:53,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 01:46:53,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:53,843 INFO L225 Difference]: With dead ends: 246 [2021-11-07 01:46:53,843 INFO L226 Difference]: Without dead ends: 133 [2021-11-07 01:46:53,845 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:46:53,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-07 01:46:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-11-07 01:46:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 124 states have (on average 1.2419354838709677) internal successors, (154), 132 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:53,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 154 transitions. [2021-11-07 01:46:53,859 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 154 transitions. Word has length 30 [2021-11-07 01:46:53,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:53,859 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 154 transitions. [2021-11-07 01:46:53,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:46:53,860 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 154 transitions. [2021-11-07 01:46:53,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:46:53,861 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:53,861 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:46:53,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:54,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2021-11-07 01:46:54,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:54,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:46:54,477 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-07 01:46:54,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:54,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1865001396, now seen corresponding path program 2 times [2021-11-07 01:46:54,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:54,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734329845] [2021-11-07 01:46:54,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:46:54,481 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:54,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:54,482 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:54,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1193b3bf-f170-4238-8aa7-6313d000eeff/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process