./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:06:39,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:06:39,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:06:39,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:06:39,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:06:39,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:06:39,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:06:39,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:06:39,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:06:39,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:06:39,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:06:39,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:06:39,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:06:39,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:06:39,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:06:39,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:06:39,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:06:39,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:06:39,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:06:39,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:06:39,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:06:39,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:06:39,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:06:39,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:06:39,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:06:39,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:06:39,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:06:39,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:06:39,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:06:39,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:06:39,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:06:39,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:06:39,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:06:39,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:06:39,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:06:39,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:06:39,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:06:39,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:06:39,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:06:39,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:06:39,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:06:39,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:06:39,430 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:06:39,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:06:39,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:06:39,431 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:06:39,432 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:06:39,432 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:06:39,432 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:06:39,432 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:06:39,432 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:06:39,432 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:06:39,433 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:06:39,433 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:06:39,433 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:06:39,433 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:06:39,433 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:06:39,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:06:39,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:06:39,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:06:39,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:06:39,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:06:39,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:06:39,435 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:06:39,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:06:39,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:06:39,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:06:39,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:06:39,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:06:39,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:39,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:06:39,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:06:39,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:06:39,437 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:06:39,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:06:39,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:06:39,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:06:39,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:06:39,438 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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-11-07 01:06:39,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:06:39,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:06:39,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:06:39,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:06:39,701 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:06:39,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-07 01:06:39,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data/bbf5c2445/24d2c8643aa8459aaf93dbc868cfa18b/FLAG54b32fa96 [2021-11-07 01:06:40,549 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:06:40,549 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-07 01:06:40,593 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data/bbf5c2445/24d2c8643aa8459aaf93dbc868cfa18b/FLAG54b32fa96 [2021-11-07 01:06:40,638 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data/bbf5c2445/24d2c8643aa8459aaf93dbc868cfa18b [2021-11-07 01:06:40,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:06:40,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:06:40,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:40,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:06:40,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:06:40,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:40" (1/1) ... [2021-11-07 01:06:40,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a87539b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:40, skipping insertion in model container [2021-11-07 01:06:40,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:40" (1/1) ... [2021-11-07 01:06:40,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:06:40,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:41,132 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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-07 01:06:41,138 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-07 01:06:41,159 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:41,164 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:41,914 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:41,985 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:41,986 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:41,986 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:41,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:41,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,004 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,008 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:42,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:42,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:42,343 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:42,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:42,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:42,346 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:42,346 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:42,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:42,348 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:42,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,496 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:42,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:42,579 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:06:42,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@168db927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:42, skipping insertion in model container [2021-11-07 01:06:42,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:42,580 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:06:42,582 INFO L168 Benchmark]: Toolchain (without parser) took 1936.40 ms. Allocated memory is still 115.3 MB. Free memory was 74.8 MB in the beginning and 50.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:06:42,583 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 79.7 MB. Free memory is still 36.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:06:42,583 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1933.89 ms. Allocated memory is still 115.3 MB. Free memory was 74.8 MB in the beginning and 50.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:06:42,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 79.7 MB. Free memory is still 36.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1933.89 ms. Allocated memory is still 115.3 MB. Free memory was 74.8 MB in the beginning and 50.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:06:44,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:06:44,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:06:44,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:06:44,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:06:44,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:06:44,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:06:44,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:06:44,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:06:44,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:06:44,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:06:44,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:06:44,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:06:44,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:06:44,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:06:44,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:06:44,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:06:44,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:06:44,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:06:44,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:06:44,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:06:44,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:06:44,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:06:44,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:06:44,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:06:44,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:06:44,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:06:44,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:06:44,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:06:44,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:06:44,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:06:44,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:06:44,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:06:44,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:06:44,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:06:44,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:06:44,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:06:44,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:06:44,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:06:44,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:06:44,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:06:44,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:06:45,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:06:45,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:06:45,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:06:45,003 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:06:45,003 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:06:45,003 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:06:45,004 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:06:45,004 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:06:45,004 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:06:45,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:06:45,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:06:45,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:06:45,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:06:45,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:06:45,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:06:45,006 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:06:45,006 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:06:45,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:06:45,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:06:45,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:06:45,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:06:45,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:06:45,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:06:45,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:45,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:06:45,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:06:45,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:06:45,009 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:06:45,009 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:06:45,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:06:45,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:06:45,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:06:45,010 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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-11-07 01:06:45,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:06:45,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:06:45,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:06:45,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:06:45,440 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:06:45,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-07 01:06:45,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data/57177d587/da5db5b2ef324a64ba4e16e3aa188f16/FLAGd4c28ac93 [2021-11-07 01:06:46,303 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:06:46,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-07 01:06:46,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data/57177d587/da5db5b2ef324a64ba4e16e3aa188f16/FLAGd4c28ac93 [2021-11-07 01:06:46,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/data/57177d587/da5db5b2ef324a64ba4e16e3aa188f16 [2021-11-07 01:06:46,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:06:46,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:06:46,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:46,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:06:46,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:06:46,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:46" (1/1) ... [2021-11-07 01:06:46,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff0f734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:46, skipping insertion in model container [2021-11-07 01:06:46,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:46" (1/1) ... [2021-11-07 01:06:46,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:06:47,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:47,353 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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-07 01:06:47,359 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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-07 01:06:47,382 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:47,387 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:48,189 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:48,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,288 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:48,667 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:48,668 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:48,669 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:48,671 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:48,672 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:48,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:48,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:48,674 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:48,675 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:48,818 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:48,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:48,928 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:06:48,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:48,994 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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-07 01:06:48,995 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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-07 01:06:48,997 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:48,997 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:49,036 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:49,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,085 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,086 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,087 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,088 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:49,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:49,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:49,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:49,169 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:49,169 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:49,170 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:49,171 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:49,171 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:49,172 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:49,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,240 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,241 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,241 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:49,270 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:06:49,299 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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2021-11-07 01:06:49,299 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_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2021-11-07 01:06:49,301 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:49,303 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:49,348 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:49,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,394 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:49,488 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:49,488 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:49,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:49,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:49,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:49,492 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:49,492 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:49,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:49,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:49,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:49,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:49,792 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:06:49,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49 WrapperNode [2021-11-07 01:06:49,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:49,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:49,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:06:49,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:06:49,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:49,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:50,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:50,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:06:50,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:06:50,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:06:50,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:50,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:50,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:50,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:50,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:50,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:50,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:50,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:06:50,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:06:50,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:06:50,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:06:50,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (1/1) ... [2021-11-07 01:06:50,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:50,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:06:50,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:06:50,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:06:50,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:06:50,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:06:50,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:06:50,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:06:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:06:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:06:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:06:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:06:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:06:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:06:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:06:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:06:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:06:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:06:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:06:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:06:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:07:09,668 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:07:09,669 INFO L299 CfgBuilder]: Removed 428 assume(true) statements. [2021-11-07 01:07:09,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:07:09 BoogieIcfgContainer [2021-11-07 01:07:09,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:07:09,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:07:09,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:07:09,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:07:09,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:06:46" (1/3) ... [2021-11-07 01:07:09,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5579f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:07:09, skipping insertion in model container [2021-11-07 01:07:09,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:49" (2/3) ... [2021-11-07 01:07:09,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5579f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:07:09, skipping insertion in model container [2021-11-07 01:07:09,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:07:09" (3/3) ... [2021-11-07 01:07:09,690 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2021-11-07 01:07:09,696 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:07:09,696 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-07 01:07:09,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:07:09,765 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:07:09,765 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-07 01:07:09,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 499 states, 478 states have (on average 1.405857740585774) internal successors, (672), 498 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:09,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:07:09,800 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:09,801 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:09,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:07:09,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:09,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1815671953, now seen corresponding path program 1 times [2021-11-07 01:07:09,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:09,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282945575] [2021-11-07 01:07:09,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:09,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:09,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:09,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:09,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:07:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:13,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1673 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:07:13,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:14,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:14,262 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:14,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282945575] [2021-11-07 01:07:14,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282945575] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:14,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:14,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:07:14,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263227898] [2021-11-07 01:07:14,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:07:14,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:14,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:07:14,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:07:14,286 INFO L87 Difference]: Start difference. First operand has 499 states, 478 states have (on average 1.405857740585774) internal successors, (672), 498 states have internal predecessors, (672), 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 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:14,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:14,424 INFO L93 Difference]: Finished difference Result 994 states and 1339 transitions. [2021-11-07 01:07:14,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:07:14,428 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2021-11-07 01:07:14,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:14,453 INFO L225 Difference]: With dead ends: 994 [2021-11-07 01:07:14,453 INFO L226 Difference]: Without dead ends: 494 [2021-11-07 01:07:14,460 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:07:14,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-11-07 01:07:14,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2021-11-07 01:07:14,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 474 states have (on average 1.3059071729957805) internal successors, (619), 493 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 619 transitions. [2021-11-07 01:07:14,534 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 619 transitions. Word has length 58 [2021-11-07 01:07:14,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:14,534 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 619 transitions. [2021-11-07 01:07:14,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 619 transitions. [2021-11-07 01:07:14,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:07:14,537 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:14,538 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:14,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:14,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:14,761 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:07:14,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:14,762 INFO L85 PathProgramCache]: Analyzing trace with hash 145257767, now seen corresponding path program 1 times [2021-11-07 01:07:14,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:14,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443829373] [2021-11-07 01:07:14,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:14,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:14,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:14,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:14,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:07:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:18,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1673 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:07:18,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:18,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:18,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:19,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:19,070 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:19,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443829373] [2021-11-07 01:07:19,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443829373] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:19,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:19,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:07:19,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112113976] [2021-11-07 01:07:19,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:07:19,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:19,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:07:19,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:07:19,073 INFO L87 Difference]: Start difference. First operand 494 states and 619 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:19,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:19,173 INFO L93 Difference]: Finished difference Result 975 states and 1223 transitions. [2021-11-07 01:07:19,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:07:19,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-11-07 01:07:19,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:19,179 INFO L225 Difference]: With dead ends: 975 [2021-11-07 01:07:19,179 INFO L226 Difference]: Without dead ends: 495 [2021-11-07 01:07:19,181 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:07:19,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-07 01:07:19,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-07 01:07:19,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.305263157894737) internal successors, (620), 494 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 620 transitions. [2021-11-07 01:07:19,224 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 620 transitions. Word has length 58 [2021-11-07 01:07:19,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:19,224 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 620 transitions. [2021-11-07 01:07:19,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:19,224 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 620 transitions. [2021-11-07 01:07:19,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:07:19,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:19,233 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:19,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:19,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:19,465 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:07:19,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:19,465 INFO L85 PathProgramCache]: Analyzing trace with hash -298642907, now seen corresponding path program 1 times [2021-11-07 01:07:19,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:19,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863980601] [2021-11-07 01:07:19,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:19,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:19,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:19,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:19,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:07:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:23,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:07:23,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:23,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:23,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:23,860 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:23,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863980601] [2021-11-07 01:07:23,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863980601] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:23,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:23,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:07:23,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2240480] [2021-11-07 01:07:23,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:07:23,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:23,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:07:23,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:07:23,862 INFO L87 Difference]: Start difference. First operand 495 states and 620 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:25,629 INFO L93 Difference]: Finished difference Result 958 states and 1200 transitions. [2021-11-07 01:07:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:07:25,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2021-11-07 01:07:25,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:25,633 INFO L225 Difference]: With dead ends: 958 [2021-11-07 01:07:25,633 INFO L226 Difference]: Without dead ends: 495 [2021-11-07 01:07:25,634 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:07:25,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-07 01:07:25,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-07 01:07:25,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.2968421052631578) internal successors, (616), 494 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:25,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 616 transitions. [2021-11-07 01:07:25,650 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 616 transitions. Word has length 58 [2021-11-07 01:07:25,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:25,651 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 616 transitions. [2021-11-07 01:07:25,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:07:25,651 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 616 transitions. [2021-11-07 01:07:25,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 01:07:25,652 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:25,653 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:25,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:25,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:25,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:07:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1163509497, now seen corresponding path program 1 times [2021-11-07 01:07:25,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:25,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545244511] [2021-11-07 01:07:25,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:25,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:25,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:25,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:25,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:07:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:30,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 1852 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:07:30,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:31,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:31,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:34,121 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:07:34,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-07 01:07:34,178 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-07 01:07:34,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-07 01:07:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:34,352 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:34,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545244511] [2021-11-07 01:07:34,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545244511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:34,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:34,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2021-11-07 01:07:34,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020121905] [2021-11-07 01:07:34,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:07:34,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:34,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:07:34,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:07:34,355 INFO L87 Difference]: Start difference. First operand 495 states and 616 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:03,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:03,199 INFO L93 Difference]: Finished difference Result 1511 states and 1894 transitions. [2021-11-07 01:08:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:08:03,200 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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 82 [2021-11-07 01:08:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:03,209 INFO L225 Difference]: With dead ends: 1511 [2021-11-07 01:08:03,209 INFO L226 Difference]: Without dead ends: 1046 [2021-11-07 01:08:03,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=192, Invalid=408, Unknown=0, NotChecked=0, Total=600 [2021-11-07 01:08:03,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-11-07 01:08:03,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 898. [2021-11-07 01:08:03,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.317767653758542) internal successors, (1157), 897 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1157 transitions. [2021-11-07 01:08:03,278 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1157 transitions. Word has length 82 [2021-11-07 01:08:03,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:03,278 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1157 transitions. [2021-11-07 01:08:03,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:03,279 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1157 transitions. [2021-11-07 01:08:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 01:08:03,280 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:03,280 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:03,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 01:08:03,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:03,493 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:08:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:03,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1329794317, now seen corresponding path program 1 times [2021-11-07 01:08:03,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:03,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490855795] [2021-11-07 01:08:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:03,497 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:03,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:03,498 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:03,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:08:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:08,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:08:08,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:08,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:09,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:09,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:09,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490855795] [2021-11-07 01:08:09,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490855795] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:09,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:09,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:08:09,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963634957] [2021-11-07 01:08:09,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:08:09,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:09,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:08:09,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:08:09,092 INFO L87 Difference]: Start difference. First operand 898 states and 1157 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:09,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:09,879 INFO L93 Difference]: Finished difference Result 2168 states and 2795 transitions. [2021-11-07 01:08:09,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:08:09,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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 84 [2021-11-07 01:08:09,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:09,887 INFO L225 Difference]: With dead ends: 2168 [2021-11-07 01:08:09,887 INFO L226 Difference]: Without dead ends: 1306 [2021-11-07 01:08:09,889 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:08:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2021-11-07 01:08:09,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 898. [2021-11-07 01:08:09,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.3143507972665147) internal successors, (1154), 897 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1154 transitions. [2021-11-07 01:08:09,945 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1154 transitions. Word has length 84 [2021-11-07 01:08:09,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:09,945 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1154 transitions. [2021-11-07 01:08:09,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1154 transitions. [2021-11-07 01:08:09,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 01:08:09,948 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:09,948 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:10,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:10,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:10,165 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:08:10,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1262356948, now seen corresponding path program 1 times [2021-11-07 01:08:10,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:10,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410244894] [2021-11-07 01:08:10,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:10,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:10,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:10,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:10,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:08:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:14,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1871 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:08:14,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:15,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:15,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:15,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:15,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410244894] [2021-11-07 01:08:15,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410244894] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:15,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:15,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 01:08:15,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106957653] [2021-11-07 01:08:15,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:08:15,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:15,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:08:15,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:08:15,750 INFO L87 Difference]: Start difference. First operand 898 states and 1154 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:16,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:16,635 INFO L93 Difference]: Finished difference Result 2112 states and 2722 transitions. [2021-11-07 01:08:16,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 01:08:16,649 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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 87 [2021-11-07 01:08:16,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:16,659 INFO L225 Difference]: With dead ends: 2112 [2021-11-07 01:08:16,659 INFO L226 Difference]: Without dead ends: 1329 [2021-11-07 01:08:16,660 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:08:16,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2021-11-07 01:08:16,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 898. [2021-11-07 01:08:16,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.3120728929384966) internal successors, (1152), 897 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1152 transitions. [2021-11-07 01:08:16,714 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1152 transitions. Word has length 87 [2021-11-07 01:08:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:16,715 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1152 transitions. [2021-11-07 01:08:16,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:16,716 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1152 transitions. [2021-11-07 01:08:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 01:08:16,722 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:16,722 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:16,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:16,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:16,937 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:08:16,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:16,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1685058774, now seen corresponding path program 1 times [2021-11-07 01:08:16,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:16,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858276236] [2021-11-07 01:08:16,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:16,941 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:16,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:16,943 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:16,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:08:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:21,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:08:21,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:22,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:22,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:22,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:22,840 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:22,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858276236] [2021-11-07 01:08:22,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858276236] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:22,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:22,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:08:22,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976260229] [2021-11-07 01:08:22,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:08:22,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:22,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:08:22,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:08:22,842 INFO L87 Difference]: Start difference. First operand 898 states and 1152 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:24,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:24,812 INFO L93 Difference]: Finished difference Result 1647 states and 2125 transitions. [2021-11-07 01:08:24,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:08:24,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 87 [2021-11-07 01:08:24,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:24,818 INFO L225 Difference]: With dead ends: 1647 [2021-11-07 01:08:24,818 INFO L226 Difference]: Without dead ends: 898 [2021-11-07 01:08:24,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:08:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-11-07 01:08:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2021-11-07 01:08:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.3029612756264237) internal successors, (1144), 897 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1144 transitions. [2021-11-07 01:08:24,870 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1144 transitions. Word has length 87 [2021-11-07 01:08:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:24,870 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1144 transitions. [2021-11-07 01:08:24,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1144 transitions. [2021-11-07 01:08:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 01:08:24,872 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:24,872 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:24,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:25,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:25,093 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:08:25,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:25,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1591332294, now seen corresponding path program 1 times [2021-11-07 01:08:25,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:25,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298466424] [2021-11-07 01:08:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:25,096 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:25,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:25,097 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:25,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:08:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:30,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1932 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:08:30,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:30,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:30,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:31,197 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:31,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298466424] [2021-11-07 01:08:31,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298466424] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:31,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:31,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 01:08:31,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958272914] [2021-11-07 01:08:31,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:08:31,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:31,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:08:31,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:08:31,200 INFO L87 Difference]: Start difference. First operand 898 states and 1144 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:33,371 INFO L93 Difference]: Finished difference Result 1613 states and 2066 transitions. [2021-11-07 01:08:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:08:33,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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 95 [2021-11-07 01:08:33,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:33,376 INFO L225 Difference]: With dead ends: 1613 [2021-11-07 01:08:33,377 INFO L226 Difference]: Without dead ends: 898 [2021-11-07 01:08:33,378 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:08:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-11-07 01:08:33,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2021-11-07 01:08:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.2892938496583144) internal successors, (1132), 897 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1132 transitions. [2021-11-07 01:08:33,433 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1132 transitions. Word has length 95 [2021-11-07 01:08:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:33,433 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1132 transitions. [2021-11-07 01:08:33,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1132 transitions. [2021-11-07 01:08:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-07 01:08:33,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:33,435 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:33,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 01:08:33,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:33,657 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:08:33,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:33,657 INFO L85 PathProgramCache]: Analyzing trace with hash 475886434, now seen corresponding path program 1 times [2021-11-07 01:08:33,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:33,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617781604] [2021-11-07 01:08:33,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:33,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:33,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:33,661 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:33,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:08:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:39,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 1991 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:08:39,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:39,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:39,548 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:39,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617781604] [2021-11-07 01:08:39,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617781604] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:39,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:39,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:08:39,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849973976] [2021-11-07 01:08:39,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:08:39,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:39,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:08:39,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:08:39,551 INFO L87 Difference]: Start difference. First operand 898 states and 1132 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:39,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:39,779 INFO L93 Difference]: Finished difference Result 2103 states and 2660 transitions. [2021-11-07 01:08:39,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:08:39,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 103 [2021-11-07 01:08:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:39,788 INFO L225 Difference]: With dead ends: 2103 [2021-11-07 01:08:39,789 INFO L226 Difference]: Without dead ends: 1506 [2021-11-07 01:08:39,790 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:08:39,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2021-11-07 01:08:39,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 901. [2021-11-07 01:08:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 881 states have (on average 1.2883087400681044) internal successors, (1135), 900 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1135 transitions. [2021-11-07 01:08:39,856 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1135 transitions. Word has length 103 [2021-11-07 01:08:39,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:39,856 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1135 transitions. [2021-11-07 01:08:39,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:39,857 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1135 transitions. [2021-11-07 01:08:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 01:08:39,858 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:39,858 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:39,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:40,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:40,081 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:08:40,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:40,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1022999834, now seen corresponding path program 1 times [2021-11-07 01:08:40,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:40,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457179788] [2021-11-07 01:08:40,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:40,084 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:40,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:40,085 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:40,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:08:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:45,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:08:45,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:46,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:46,769 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:46,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457179788] [2021-11-07 01:08:46,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457179788] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:46,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:46,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:08:46,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374773432] [2021-11-07 01:08:46,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:08:46,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:46,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:08:46,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:08:46,771 INFO L87 Difference]: Start difference. First operand 901 states and 1135 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:49,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:08:49,059 INFO L93 Difference]: Finished difference Result 1498 states and 1888 transitions. [2021-11-07 01:08:49,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:08:49,060 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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 105 [2021-11-07 01:08:49,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:08:49,065 INFO L225 Difference]: With dead ends: 1498 [2021-11-07 01:08:49,065 INFO L226 Difference]: Without dead ends: 901 [2021-11-07 01:08:49,066 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:08:49,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2021-11-07 01:08:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2021-11-07 01:08:49,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 881 states have (on average 1.2814982973893303) internal successors, (1129), 900 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1129 transitions. [2021-11-07 01:08:49,134 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1129 transitions. Word has length 105 [2021-11-07 01:08:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:08:49,135 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1129 transitions. [2021-11-07 01:08:49,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:08:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1129 transitions. [2021-11-07 01:08:49,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 01:08:49,137 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:08:49,137 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:08:49,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:08:49,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:08:49,354 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:08:49,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:08:49,355 INFO L85 PathProgramCache]: Analyzing trace with hash 309133258, now seen corresponding path program 1 times [2021-11-07 01:08:49,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:08:49,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741250367] [2021-11-07 01:08:49,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:08:49,358 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:08:49,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:08:49,359 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:08:49,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:12:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:12:17,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 2053 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-07 01:12:17,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:12:17,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 01:12:17,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:12:17,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 01:12:18,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:12:18,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-07 01:12:18,167 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 01:12:18,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-07 01:12:18,852 INFO L354 Elim1Store]: treesize reduction 1506, result has 0.5 percent of original size [2021-11-07 01:12:18,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 203 treesize of output 114 [2021-11-07 01:12:19,102 INFO L354 Elim1Store]: treesize reduction 1506, result has 0.5 percent of original size [2021-11-07 01:12:19,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 111 treesize of output 22 [2021-11-07 01:12:19,623 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 01:12:19,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:12:20,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:12:20,148 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 490 [2021-11-07 01:12:20,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:12:20,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 774 [2021-11-07 01:12:23,966 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_aws_mul_u64_checked_~r.base) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_10) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_11) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_12) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_13) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_14) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_15) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_16)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64))))) (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_aws_mul_u64_checked_~r.base) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_3) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_4) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_5) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_6) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_7) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_8)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64)))))) is different from false [2021-11-07 01:12:26,423 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201| (_ BitVec 64))) (or (and (forall ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_10) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_11) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_12) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_13) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_14) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_15) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_16)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64))))) (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_3) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_4) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_5) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_6) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_7) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_8)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64))) (_ bv0 64)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201|))))) is different from false [2021-11-07 01:13:09,456 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 01:13:09,457 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:13:09,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741250367] [2021-11-07 01:13:09,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741250367] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:13:09,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:13:09,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 10] imperfect sequences [] total 15 [2021-11-07 01:13:09,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468949258] [2021-11-07 01:13:09,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 01:13:09,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:13:09,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 01:13:09,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=113, Unknown=13, NotChecked=46, Total=210 [2021-11-07 01:13:09,459 INFO L87 Difference]: Start difference. First operand 901 states and 1129 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 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 01:13:20,878 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd |c_ULTIMATE.start_aws_array_list_set_at_harness_~#list~0.offset| (_ bv32 64)))) (and (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (_ bv32 64))) (= c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.base |c_ULTIMATE.start_aws_array_list_set_at_harness_~#list~0.base|) (= (_ bv0 64) |c_ULTIMATE.start_aws_array_list_set_at_harness_~#list~0.offset|) (forall ((|v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201| (_ BitVec 64))) (or (and (forall ((v_DerPreprocessor_13 (_ BitVec 64)) (v_DerPreprocessor_14 (_ BitVec 64)) (v_DerPreprocessor_11 (_ BitVec 64)) (v_DerPreprocessor_12 (_ BitVec 64)) (v_DerPreprocessor_9 (_ BitVec 64)) (v_DerPreprocessor_15 (_ BitVec 64)) (v_DerPreprocessor_16 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_10 (_ BitVec 64))) (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_10) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_11) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_12) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_13) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_14) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_15) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_16)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64))))) (forall ((v_DerPreprocessor_8 (_ BitVec 64)) (v_DerPreprocessor_7 (_ BitVec 64)) (v_DerPreprocessor_6 (_ BitVec 64)) (v_DerPreprocessor_5 (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (= (select (select (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201|) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv1 64)) v_DerPreprocessor_2) (bvadd (_ bv2 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_3) (bvadd (_ bv3 64) ULTIMATE.start_aws_mul_u64_checked_~r.offset) v_DerPreprocessor_4) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64)) v_DerPreprocessor_5) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv5 64)) v_DerPreprocessor_6) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv6 64)) v_DerPreprocessor_7) (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv7 64)) v_DerPreprocessor_8)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64))) (_ bv0 64)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base_201|))))) (= (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_aws_array_list_is_valid_~list.base) (_ bv32 64)) (_ bv0 64)) (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_aws_array_list_set_at_harness_~#list~0.base|) .cse0)) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_ULTIMATE.start_aws_array_list_set_at_harness_~#list~0.base|))) (_ bv1 1))) (= |c_ULTIMATE.start_aws_array_list_set_at_harness_~#list~0.offset| c_ULTIMATE.start_ensure_array_list_has_allocated_data_member_~list.offset) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (select |c_#valid| c_ULTIMATE.start_aws_array_list_is_valid_~list.base)))) (_ bv1 1))) (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_aws_array_list_set_at_harness_~#list~0.base|) .cse0)) (= (_ bv0 64) c_ULTIMATE.start_aws_array_list_is_valid_~list.offset))) is different from false [2021-11-07 01:16:48,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:48,120 INFO L93 Difference]: Finished difference Result 1838 states and 2293 transitions. [2021-11-07 01:16:48,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:16:48,121 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 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 113 [2021-11-07 01:16:48,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:48,125 INFO L225 Difference]: With dead ends: 1838 [2021-11-07 01:16:48,126 INFO L226 Difference]: Without dead ends: 964 [2021-11-07 01:16:48,128 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 211 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 48.4s TimeCoverageRelationStatistics Valid=54, Invalid=154, Unknown=14, NotChecked=84, Total=306 [2021-11-07 01:16:48,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2021-11-07 01:16:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 910. [2021-11-07 01:16:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 890 states have (on average 1.2797752808988765) internal successors, (1139), 909 states have internal predecessors, (1139), 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 01:16:48,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1139 transitions. [2021-11-07 01:16:48,194 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1139 transitions. Word has length 113 [2021-11-07 01:16:48,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:48,195 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1139 transitions. [2021-11-07 01:16:48,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 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 01:16:48,195 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1139 transitions. [2021-11-07 01:16:48,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 01:16:48,197 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:48,197 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:48,404 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forcibly destroying the process [2021-11-07 01:16:48,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 137 [2021-11-07 01:16:48,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:48,502 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:16:48,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:48,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1910204364, now seen corresponding path program 1 times [2021-11-07 01:16:48,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:48,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261797152] [2021-11-07 01:16:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:48,506 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:48,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:48,508 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:48,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:16:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:53,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 2050 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:16:53,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:54,502 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 01:16:54,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:55,211 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 01:16:55,211 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:55,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261797152] [2021-11-07 01:16:55,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261797152] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:55,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:55,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:16:55,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127511541] [2021-11-07 01:16:55,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:16:55,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:55,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:16:55,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:16:55,213 INFO L87 Difference]: Start difference. First operand 910 states and 1139 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 01:17:12,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:12,481 INFO L93 Difference]: Finished difference Result 2302 states and 2870 transitions. [2021-11-07 01:17:12,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:17:12,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 113 [2021-11-07 01:17:12,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:12,488 INFO L225 Difference]: With dead ends: 2302 [2021-11-07 01:17:12,488 INFO L226 Difference]: Without dead ends: 1431 [2021-11-07 01:17:12,490 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:17:12,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2021-11-07 01:17:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 982. [2021-11-07 01:17:12,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 962 states have (on average 1.2765072765072765) internal successors, (1228), 981 states have internal predecessors, (1228), 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 01:17:12,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1228 transitions. [2021-11-07 01:17:12,558 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1228 transitions. Word has length 113 [2021-11-07 01:17:12,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:12,558 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 1228 transitions. [2021-11-07 01:17:12,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 01:17:12,558 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1228 transitions. [2021-11-07 01:17:12,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 01:17:12,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:12,560 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:17:12,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:17:12,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:12,773 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-07 01:17:12,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:12,773 INFO L85 PathProgramCache]: Analyzing trace with hash 291229450, now seen corresponding path program 1 times [2021-11-07 01:17:12,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:12,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418637953] [2021-11-07 01:17:12,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:12,776 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:12,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:12,777 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:12,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7905f2-c4d4-4c13-9a78-49ce081a65fc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:17:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:17,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 2053 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-07 01:17:17,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:19,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 123 [2021-11-07 01:17:19,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 112 [2021-11-07 01:17:19,972 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:17:19,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 109 treesize of output 45 [2021-11-07 01:17:20,607 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 01:17:20,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:24,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-07 01:17:24,433 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-07 01:17:38,316 WARN L207 SmtUtils]: Spent 13.33 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-07 01:17:38,322 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-07 01:17:38,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 131 treesize of output 770