./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/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 fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:42:37,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:42:37,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:42:37,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:42:37,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:42:37,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:42:37,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:42:37,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:42:37,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:42:37,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:42:37,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:42:37,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:42:37,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:42:37,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:42:37,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:42:37,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:42:37,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:42:37,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:42:37,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:42:37,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:42:37,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:42:37,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:42:37,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:42:37,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:42:37,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:42:37,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:42:37,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:42:37,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:42:37,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:42:37,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:42:37,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:42:37,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:42:37,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:42:37,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:42:37,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:42:37,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:42:37,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:42:37,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:42:37,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:42:37,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:42:37,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:42:37,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:42:37,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:42:37,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:42:37,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:42:37,899 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:42:37,899 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:42:37,899 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:42:37,900 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:42:37,900 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:42:37,900 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:42:37,900 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:42:37,900 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:42:37,901 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:42:37,901 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:42:37,901 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:42:37,901 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:42:37,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:42:37,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:42:37,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:42:37,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:42:37,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:42:37,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:42:37,903 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:42:37,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:42:37,904 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:42:37,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:42:37,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:42:37,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:42:37,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:37,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:42:37,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:42:37,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:42:37,905 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:42:37,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:42:37,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:42:37,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:42:37,906 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:42:37,906 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a [2021-11-07 01:42:38,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:42:38,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:42:38,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:42:38,254 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:42:38,255 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:42:38,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-07 01:42:38,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data/ed2357746/d4b9a5dd161146adbf28c590b84aa873/FLAGa9432f882 [2021-11-07 01:42:39,338 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:42:39,339 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-07 01:42:39,403 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data/ed2357746/d4b9a5dd161146adbf28c590b84aa873/FLAGa9432f882 [2021-11-07 01:42:39,793 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data/ed2357746/d4b9a5dd161146adbf28c590b84aa873 [2021-11-07 01:42:39,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:42:39,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:42:39,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:39,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:42:39,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:42:39,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:39" (1/1) ... [2021-11-07 01:42:39,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554c6afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:39, skipping insertion in model container [2021-11-07 01:42:39,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:39" (1/1) ... [2021-11-07 01:42:39,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:42:39,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:40,245 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-07 01:42:40,261 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-07 01:42:40,292 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:40,311 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:41,329 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:41,437 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:41,438 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:41,439 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:41,440 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:41,441 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:41,457 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:41,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:41,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:41,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:41,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:41,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:41,924 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:41,931 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:41,940 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:41,941 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:41,945 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:41,947 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:41,947 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:41,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:42,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:42,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:42,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:42,337 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 01:42:42,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78608d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:42, skipping insertion in model container [2021-11-07 01:42:42,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:42,339 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:42:42,342 INFO L168 Benchmark]: Toolchain (without parser) took 2543.02 ms. Allocated memory is still 86.0 MB. Free memory was 51.5 MB in the beginning and 41.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:42,343 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory was 47.3 MB in the beginning and 47.3 MB in the end (delta: 40.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:42:42,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2539.67 ms. Allocated memory is still 86.0 MB. Free memory was 51.1 MB in the beginning and 41.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:42,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory was 47.3 MB in the beginning and 47.3 MB in the end (delta: 40.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2539.67 ms. Allocated memory is still 86.0 MB. Free memory was 51.1 MB in the beginning and 41.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 24.6 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/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 fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:42:45,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:42:45,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:42:45,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:42:45,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:42:45,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:42:45,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:42:45,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:42:45,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:42:45,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:42:45,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:42:45,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:42:45,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:42:45,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:42:45,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:42:45,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:42:45,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:42:45,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:42:45,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:42:45,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:42:45,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:42:45,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:42:45,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:42:45,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:42:45,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:42:45,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:42:45,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:42:45,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:42:45,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:42:45,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:42:45,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:42:45,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:42:45,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:42:45,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:42:45,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:42:45,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:42:45,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:42:45,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:42:45,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:42:45,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:42:45,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:42:45,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:42:45,206 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:42:45,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:42:45,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:42:45,207 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:42:45,208 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:42:45,208 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:42:45,208 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:42:45,208 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:42:45,208 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:42:45,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:42:45,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:42:45,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:42:45,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:42:45,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:42:45,211 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:42:45,211 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:42:45,211 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:42:45,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:42:45,211 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:42:45,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:42:45,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:42:45,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:42:45,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:42:45,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:45,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:42:45,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:42:45,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:42:45,218 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:42:45,218 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:45,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:42:45,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:42:45,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:42:45,219 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd704c0997d5526a33ae946f9f6b6d8e05b412ad44e87cb653981b428eeb987a [2021-11-07 01:42:45,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:42:45,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:42:45,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:42:45,691 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:42:45,692 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:42:45,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-07 01:42:45,791 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data/4488d36d9/7f1c1d6eb61e42c2873bea73e7e3c5c5/FLAGb9371d7a2 [2021-11-07 01:42:46,945 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:42:46,946 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i [2021-11-07 01:42:47,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data/4488d36d9/7f1c1d6eb61e42c2873bea73e7e3c5c5/FLAGb9371d7a2 [2021-11-07 01:42:47,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/data/4488d36d9/7f1c1d6eb61e42c2873bea73e7e3c5c5 [2021-11-07 01:42:47,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:42:47,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:42:47,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:47,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:42:47,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:42:47,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:47" (1/1) ... [2021-11-07 01:42:47,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53793ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:47, skipping insertion in model container [2021-11-07 01:42:47,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:47" (1/1) ... [2021-11-07 01:42:47,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:42:47,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:47,775 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-07 01:42:47,782 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-07 01:42:47,815 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:47,828 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:48,850 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:48,958 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:48,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:48,959 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:48,960 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:48,962 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:48,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:48,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:48,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:48,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:49,477 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:49,478 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:49,480 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:49,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:49,492 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:49,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:49,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:49,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:49,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:49,496 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:49,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:49,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:49,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:49,880 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:42:49,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:50,001 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-07 01:42:50,001 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-07 01:42:50,004 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:50,007 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:50,094 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:50,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,227 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:50,228 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:50,228 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:50,230 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:50,236 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:50,237 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:50,238 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:50,238 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:50,239 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:50,240 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:50,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:50,399 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:42:50,429 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4505,4518] [2021-11-07 01:42:50,430 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_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness.i[4565,4578] [2021-11-07 01:42:50,432 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:50,434 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:50,488 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:50,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,509 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,511 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,511 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:50,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:50,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:50,553 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:50,554 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:50,554 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:50,555 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:50,556 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:50,556 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:50,557 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:50,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,617 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:50,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:51,091 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:42:51,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51 WrapperNode [2021-11-07 01:42:51,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:51,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:51,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:42:51,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:42:51,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:51,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:42:51,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:42:51,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:42:51,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:42:51,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:42:51,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:42:51,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:42:51,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (1/1) ... [2021-11-07 01:42:51,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:51,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:42:51,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:42:51,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:42:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:42:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:42:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:42:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:42:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:42:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:42:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:42:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:42:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:42:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:42:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:42:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:42:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:42:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:42:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:42:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:43:09,831 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:43:09,831 INFO L299 CfgBuilder]: Removed 209 assume(true) statements. [2021-11-07 01:43:09,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:43:09 BoogieIcfgContainer [2021-11-07 01:43:09,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:43:09,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:43:09,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:43:09,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:43:09,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:42:47" (1/3) ... [2021-11-07 01:43:09,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fe1022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:43:09, skipping insertion in model container [2021-11-07 01:43:09,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:51" (2/3) ... [2021-11-07 01:43:09,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22fe1022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:43:09, skipping insertion in model container [2021-11-07 01:43:09,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:43:09" (3/3) ... [2021-11-07 01:43:09,844 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness.i [2021-11-07 01:43:09,851 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:43:09,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-07 01:43:09,919 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:43:09,926 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 01:43:09,927 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-07 01:43:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 267 states have (on average 1.4644194756554307) internal successors, (391), 280 states have internal predecessors, (391), 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 01:43:09,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:43:09,970 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:09,971 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:09,972 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:43:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:09,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1877814829, now seen corresponding path program 1 times [2021-11-07 01:43:10,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:10,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301083674] [2021-11-07 01:43:10,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:10,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:10,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:10,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:10,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:43:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:15,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:43:15,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:15,664 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 01:43:15,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:15,863 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 01:43:15,864 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:15,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301083674] [2021-11-07 01:43:15,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301083674] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:15,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:15,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:43:15,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559154075] [2021-11-07 01:43:15,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:43:15,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:15,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:43:15,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:43:15,894 INFO L87 Difference]: Start difference. First operand has 281 states, 267 states have (on average 1.4644194756554307) internal successors, (391), 280 states have internal predecessors, (391), 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 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 01:43:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:15,950 INFO L93 Difference]: Finished difference Result 558 states and 777 transitions. [2021-11-07 01:43:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:43:15,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2021-11-07 01:43:15,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:15,966 INFO L225 Difference]: With dead ends: 558 [2021-11-07 01:43:15,967 INFO L226 Difference]: Without dead ends: 274 [2021-11-07 01:43:15,971 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 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 01:43:15,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-07 01:43:16,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-07 01:43:16,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 261 states have (on average 1.3103448275862069) internal successors, (342), 273 states have internal predecessors, (342), 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 01:43:16,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 342 transitions. [2021-11-07 01:43:16,044 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 342 transitions. Word has length 42 [2021-11-07 01:43:16,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:16,044 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 342 transitions. [2021-11-07 01:43:16,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 01:43:16,045 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 342 transitions. [2021-11-07 01:43:16,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 01:43:16,047 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:16,047 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:16,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:16,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:16,249 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:43:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:16,250 INFO L85 PathProgramCache]: Analyzing trace with hash 726142253, now seen corresponding path program 1 times [2021-11-07 01:43:16,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:16,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175106855] [2021-11-07 01:43:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:16,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:16,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:16,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:16,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:43:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:21,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:43:21,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:21,482 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 01:43:21,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:21,727 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 01:43:21,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:21,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175106855] [2021-11-07 01:43:21,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175106855] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:21,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:21,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:43:21,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996031171] [2021-11-07 01:43:21,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:43:21,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:21,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:43:21,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:43:21,732 INFO L87 Difference]: Start difference. First operand 274 states and 342 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 01:43:21,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:21,814 INFO L93 Difference]: Finished difference Result 519 states and 652 transitions. [2021-11-07 01:43:21,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:43:21,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 54 [2021-11-07 01:43:21,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:21,820 INFO L225 Difference]: With dead ends: 519 [2021-11-07 01:43:21,820 INFO L226 Difference]: Without dead ends: 274 [2021-11-07 01:43:21,822 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 104 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 01:43:21,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-07 01:43:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-07 01:43:21,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 261 states have (on average 1.3026819923371646) internal successors, (340), 273 states have internal predecessors, (340), 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 01:43:21,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 340 transitions. [2021-11-07 01:43:21,846 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 340 transitions. Word has length 54 [2021-11-07 01:43:21,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:21,846 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 340 transitions. [2021-11-07 01:43:21,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 01:43:21,847 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 340 transitions. [2021-11-07 01:43:21,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 01:43:21,849 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:21,849 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:21,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:22,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:22,064 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:43:22,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:22,065 INFO L85 PathProgramCache]: Analyzing trace with hash -657350258, now seen corresponding path program 1 times [2021-11-07 01:43:22,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:22,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098663164] [2021-11-07 01:43:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:22,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:22,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:22,081 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:22,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:43:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:27,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:43:27,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:27,304 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 01:43:27,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:27,611 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 01:43:27,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:27,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098663164] [2021-11-07 01:43:27,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098663164] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:27,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:27,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:43:27,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974174430] [2021-11-07 01:43:27,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:43:27,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:27,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:43:27,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:43:27,615 INFO L87 Difference]: Start difference. First operand 274 states and 340 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 01:43:27,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:27,810 INFO L93 Difference]: Finished difference Result 525 states and 659 transitions. [2021-11-07 01:43:27,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:27,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-07 01:43:27,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:27,824 INFO L225 Difference]: With dead ends: 525 [2021-11-07 01:43:27,825 INFO L226 Difference]: Without dead ends: 280 [2021-11-07 01:43:27,829 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:27,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-07 01:43:27,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-11-07 01:43:27,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 267 states have (on average 1.2958801498127341) internal successors, (346), 279 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:27,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 346 transitions. [2021-11-07 01:43:27,870 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 346 transitions. Word has length 56 [2021-11-07 01:43:27,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:27,877 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 346 transitions. [2021-11-07 01:43:27,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 01:43:27,878 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 346 transitions. [2021-11-07 01:43:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:43:27,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:27,884 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:27,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:28,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:28,109 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:43:28,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:28,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1156755910, now seen corresponding path program 1 times [2021-11-07 01:43:28,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:28,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971660097] [2021-11-07 01:43:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:28,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:28,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:28,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:28,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:43:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:32,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:43:32,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:43:33,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:43:34,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:34,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971660097] [2021-11-07 01:43:34,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971660097] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:43:34,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1502535883] [2021-11-07 01:43:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:34,060 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:43:34,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:43:34,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:43:34,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-07 01:43:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:36,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:43:36,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 01:43:36,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:36,767 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 01:43:36,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1502535883] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:36,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:43:36,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6] total 13 [2021-11-07 01:43:36,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256831738] [2021-11-07 01:43:36,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:36,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:36,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:36,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:43:36,770 INFO L87 Difference]: Start difference. First operand 280 states and 346 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 01:43:37,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:37,912 INFO L93 Difference]: Finished difference Result 698 states and 874 transitions. [2021-11-07 01:43:37,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 64 [2021-11-07 01:43:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:37,921 INFO L225 Difference]: With dead ends: 698 [2021-11-07 01:43:37,922 INFO L226 Difference]: Without dead ends: 525 [2021-11-07 01:43:37,923 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:43:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-11-07 01:43:37,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 283. [2021-11-07 01:43:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 270 states have (on average 1.2925925925925925) internal successors, (349), 282 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:37,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 349 transitions. [2021-11-07 01:43:37,946 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 349 transitions. Word has length 64 [2021-11-07 01:43:37,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:37,947 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 349 transitions. [2021-11-07 01:43:37,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 01:43:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 349 transitions. [2021-11-07 01:43:37,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:43:37,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:37,951 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:38,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:38,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:38,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:43:38,365 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:43:38,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:38,366 INFO L85 PathProgramCache]: Analyzing trace with hash 796022652, now seen corresponding path program 1 times [2021-11-07 01:43:38,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:38,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323630239] [2021-11-07 01:43:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:38,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:38,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:38,371 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:38,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:43:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:43,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:43:43,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:43:43,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:44,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:43:44,144 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:44,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323630239] [2021-11-07 01:43:44,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323630239] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:43:44,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [432531510] [2021-11-07 01:43:44,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:44,145 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:43:44,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:43:44,146 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:43:44,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-07 01:43:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:49,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:43:49,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:43:49,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:43:49,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [432531510] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:43:49,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089607237] [2021-11-07 01:43:49,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:49,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:43:49,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:43:49,680 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:43:49,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 01:43:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:51,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:43:51,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 01:43:52,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-07 01:43:52,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089607237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:52,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-07 01:43:52,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 4] imperfect sequences [6, 6, 6, 6] total 19 [2021-11-07 01:43:52,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271819883] [2021-11-07 01:43:52,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:43:52,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:52,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:43:52,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-11-07 01:43:52,747 INFO L87 Difference]: Start difference. First operand 283 states and 349 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:58,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:58,616 INFO L93 Difference]: Finished difference Result 557 states and 691 transitions. [2021-11-07 01:43:58,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 01:43:58,617 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-07 01:43:58,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:58,622 INFO L225 Difference]: With dead ends: 557 [2021-11-07 01:43:58,623 INFO L226 Difference]: Without dead ends: 555 [2021-11-07 01:43:58,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=269, Invalid=1137, Unknown=0, NotChecked=0, Total=1406 [2021-11-07 01:43:58,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2021-11-07 01:43:58,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 285. [2021-11-07 01:43:58,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 272 states have (on average 1.2904411764705883) internal successors, (351), 284 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:58,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 351 transitions. [2021-11-07 01:43:58,651 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 351 transitions. Word has length 64 [2021-11-07 01:43:58,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:58,652 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 351 transitions. [2021-11-07 01:43:58,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 351 transitions. [2021-11-07 01:43:58,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 01:43:58,654 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:58,655 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:58,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:58,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:59,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:59,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:43:59,270 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:43:59,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:59,270 INFO L85 PathProgramCache]: Analyzing trace with hash 796082234, now seen corresponding path program 1 times [2021-11-07 01:43:59,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:59,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677794200] [2021-11-07 01:43:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:59,276 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:59,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:59,277 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:59,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:44:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:04,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:44:04,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:44:04,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:44:05,561 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:05,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677794200] [2021-11-07 01:44:05,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677794200] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:44:05,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2074152602] [2021-11-07 01:44:05,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:05,562 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:44:05,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:44:05,573 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:44:05,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-07 01:44:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:10,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:44:10,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:44:10,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:44:11,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2074152602] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:44:11,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880617797] [2021-11-07 01:44:11,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:11,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:44:11,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:44:11,158 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:44:11,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 01:44:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:13,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:44:13,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:44:13,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 01:44:14,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880617797] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:44:14,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:44:14,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 7] total 13 [2021-11-07 01:44:14,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365612412] [2021-11-07 01:44:14,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:44:14,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:14,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:44:14,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:44:14,381 INFO L87 Difference]: Start difference. First operand 285 states and 351 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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 01:44:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:15,153 INFO L93 Difference]: Finished difference Result 554 states and 692 transitions. [2021-11-07 01:44:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:44:15,154 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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 64 [2021-11-07 01:44:15,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:15,157 INFO L225 Difference]: With dead ends: 554 [2021-11-07 01:44:15,158 INFO L226 Difference]: Without dead ends: 301 [2021-11-07 01:44:15,159 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:44:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-11-07 01:44:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2021-11-07 01:44:15,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 288 states have (on average 1.2743055555555556) internal successors, (367), 300 states have internal predecessors, (367), 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 01:44:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 367 transitions. [2021-11-07 01:44:15,186 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 367 transitions. Word has length 64 [2021-11-07 01:44:15,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:15,186 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 367 transitions. [2021-11-07 01:44:15,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 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 01:44:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 367 transitions. [2021-11-07 01:44:15,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 01:44:15,189 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:15,189 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 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 01:44:15,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:15,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:15,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:15,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:44:15,805 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 01:44:15,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:15,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1459005270, now seen corresponding path program 2 times [2021-11-07 01:44:15,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:15,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444385529] [2021-11-07 01:44:15,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:44:15,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:15,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:15,814 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:15,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ef1a8fd-530e-4719-828c-821f4f5f6b5a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process