./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.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_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/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_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/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_93bea208-7945-47da-b210-1f77f26bb1f7/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 b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:42:24,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:42:24,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:42:24,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:42:24,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:42:24,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:42:24,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:42:24,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:42:24,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:42:24,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:42:24,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:42:24,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:42:24,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:42:24,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:42:24,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:42:24,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:42:24,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:42:24,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:42:24,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:42:24,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:42:24,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:42:24,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:42:24,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:42:24,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:42:24,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:42:24,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:42:24,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:42:24,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:42:24,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:42:24,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:42:24,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:42:24,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:42:24,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:42:24,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:42:24,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:42:24,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:42:24,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:42:24,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:42:24,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:42:24,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:42:24,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:42:24,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:42:24,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:42:24,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:42:24,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:42:24,444 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:42:24,444 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:42:24,445 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:42:24,445 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:42:24,445 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:42:24,445 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:42:24,446 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:42:24,446 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:42:24,446 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:42:24,446 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:42:24,447 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:42:24,447 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:42:24,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:42:24,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:42:24,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:42:24,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:42:24,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:42:24,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:42:24,449 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:42:24,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:42:24,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:42:24,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:42:24,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:42:24,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:42:24,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:24,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:42:24,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:42:24,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:42:24,452 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:42:24,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:42:24,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:42:24,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:42:24,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:42:24,453 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_93bea208-7945-47da-b210-1f77f26bb1f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 [2021-11-07 01:42:24,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:42:24,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:42:24,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:42:24,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:42:24,744 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:42:24,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2021-11-07 01:42:24,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data/995dfe5b0/6b907f64ac2a4d7fb12a49611253f03f/FLAGbb3d7a481 [2021-11-07 01:42:25,973 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:42:25,974 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2021-11-07 01:42:26,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data/995dfe5b0/6b907f64ac2a4d7fb12a49611253f03f/FLAGbb3d7a481 [2021-11-07 01:42:26,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data/995dfe5b0/6b907f64ac2a4d7fb12a49611253f03f [2021-11-07 01:42:26,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:42:26,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:42:26,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:26,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:42:26,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:42:26,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:26" (1/1) ... [2021-11-07 01:42:26,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f990fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:26, skipping insertion in model container [2021-11-07 01:42:26,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:26" (1/1) ... [2021-11-07 01:42:26,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:42:26,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:26,797 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_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2021-11-07 01:42:26,806 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_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2021-11-07 01:42:26,838 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:26,846 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:28,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,335 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:28,967 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:28,969 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:28,970 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:28,971 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:28,973 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:28,974 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:28,974 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:28,975 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:28,976 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:28,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:29,295 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:29,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,767 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,778 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,787 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:29,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:29,964 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:42:29,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@44b2b392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:29, skipping insertion in model container [2021-11-07 01:42:29,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:29,966 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:42:29,969 INFO L168 Benchmark]: Toolchain (without parser) took 3709.09 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 41.7 MB in the beginning and 54.9 MB in the end (delta: -13.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:29,970 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 38.8 MB in the beginning and 38.7 MB in the end (delta: 41.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:42:29,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3703.71 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 41.5 MB in the beginning and 55.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:42:29,977 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 38.8 MB in the beginning and 38.7 MB in the end (delta: 41.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3703.71 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 41.5 MB in the beginning and 55.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: 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_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/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_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/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_93bea208-7945-47da-b210-1f77f26bb1f7/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 b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:42:32,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:42:32,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:42:32,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:42:32,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:42:32,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:42:32,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:42:32,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:42:32,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:42:32,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:42:32,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:42:32,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:42:32,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:42:32,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:42:32,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:42:32,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:42:32,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:42:32,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:42:32,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:42:32,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:42:32,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:42:32,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:42:32,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:42:32,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:42:32,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:42:32,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:42:32,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:42:32,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:42:32,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:42:32,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:42:32,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:42:32,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:42:32,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:42:32,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:42:32,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:42:32,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:42:32,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:42:32,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:42:32,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:42:32,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:42:32,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:42:32,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:42:32,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:42:32,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:42:32,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:42:32,861 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:42:32,861 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:42:32,862 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:42:32,862 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:42:32,862 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:42:32,862 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:42:32,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:42:32,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:42:32,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:42:32,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:42:32,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:42:32,867 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:42:32,867 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:42:32,867 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:42:32,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:42:32,868 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:42:32,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:42:32,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:42:32,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:42:32,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:42:32,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:32,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:42:32,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:42:32,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:42:32,870 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:42:32,870 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:42:32,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:42:32,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:42:32,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:42:32,871 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_93bea208-7945-47da-b210-1f77f26bb1f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 [2021-11-07 01:42:33,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:42:33,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:42:33,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:42:33,349 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:42:33,350 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:42:33,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2021-11-07 01:42:33,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data/e1e8494f6/56ea6a9d28be4f3bb9203d1d26ff9558/FLAG812bf1e04 [2021-11-07 01:42:34,688 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:42:34,688 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2021-11-07 01:42:34,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data/e1e8494f6/56ea6a9d28be4f3bb9203d1d26ff9558/FLAG812bf1e04 [2021-11-07 01:42:34,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/data/e1e8494f6/56ea6a9d28be4f3bb9203d1d26ff9558 [2021-11-07 01:42:34,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:42:34,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:42:34,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:34,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:42:34,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:42:34,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:34" (1/1) ... [2021-11-07 01:42:34,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32cf18c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:34, skipping insertion in model container [2021-11-07 01:42:34,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:42:34" (1/1) ... [2021-11-07 01:42:34,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:42:35,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:35,641 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_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2021-11-07 01:42:35,652 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_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2021-11-07 01:42:35,695 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:35,707 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:37,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:37,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:38,262 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:38,263 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:38,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:38,267 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:38,269 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:38,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:38,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:38,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:38,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:38,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:38,558 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:39,160 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,161 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,213 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,241 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,242 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,245 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:39,338 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:42:39,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:42:39,428 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_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2021-11-07 01:42:39,429 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2021-11-07 01:42:39,431 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:39,432 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:39,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,589 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,617 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,678 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:39,680 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:39,681 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:39,684 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:39,685 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:39,686 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:39,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:39,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:39,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:39,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:39,739 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:39,926 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,927 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,940 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,940 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,949 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,950 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,951 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,951 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:39,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:40,020 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:42:40,035 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_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2021-11-07 01:42:40,035 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_93bea208-7945-47da-b210-1f77f26bb1f7/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2021-11-07 01:42:40,037 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:42:40,038 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:42:40,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,081 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,090 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,091 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:42:40,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:42:40,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:42:40,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:42:40,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:42:40,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:42:40,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:42:40,143 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:42:40,143 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:42:40,145 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:42:40,172 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:42:40,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,348 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,349 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,363 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,364 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:42:40,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:42:40,708 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:42:40,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40 WrapperNode [2021-11-07 01:42:40,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:42:40,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:40,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:42:40,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:42:40,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:40,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:41,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:42:41,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:42:41,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:42:41,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:42:41,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:41,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:41,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:41,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:41,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:41,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:41,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:41,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:42:41,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:42:41,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:42:41,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:42:41,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (1/1) ... [2021-11-07 01:42:41,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:42:41,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:42:41,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:42:41,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:42:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 01:42:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:42:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:42:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:42:41,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:42:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:42:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:42:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:42:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:42:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:42:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:42:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:42:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:42:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:42:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:42:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:42:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:42:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:42:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:42:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:43:02,339 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !true; [2021-11-07 01:43:02,353 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:43:02,354 INFO L299 CfgBuilder]: Removed 157 assume(true) statements. [2021-11-07 01:43:02,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:43:02 BoogieIcfgContainer [2021-11-07 01:43:02,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:43:02,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:43:02,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:43:02,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:43:02,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:42:34" (1/3) ... [2021-11-07 01:43:02,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db9e0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:43:02, skipping insertion in model container [2021-11-07 01:43:02,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:42:40" (2/3) ... [2021-11-07 01:43:02,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db9e0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:43:02, skipping insertion in model container [2021-11-07 01:43:02,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:43:02" (3/3) ... [2021-11-07 01:43:02,374 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness-1.i [2021-11-07 01:43:02,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:43:02,383 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 01:43:02,441 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:43:02,448 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:43:02,448 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 01:43:02,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:02,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 01:43:02,484 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:02,485 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:02,486 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:43:02,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:02,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1999182466, now seen corresponding path program 1 times [2021-11-07 01:43:02,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:02,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120375784] [2021-11-07 01:43:02,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:02,521 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:02,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:02,524 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:02,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:43:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:07,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:43:07,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:08,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:08,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:08,367 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:08,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120375784] [2021-11-07 01:43:08,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120375784] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:08,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:08,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:43:08,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19915181] [2021-11-07 01:43:08,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:43:08,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:43:08,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:43:08,409 INFO L87 Difference]: Start difference. First operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:08,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:08,467 INFO L93 Difference]: Finished difference Result 399 states and 562 transitions. [2021-11-07 01:43:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:43:08,468 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-07 01:43:08,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:08,492 INFO L225 Difference]: With dead ends: 399 [2021-11-07 01:43:08,493 INFO L226 Difference]: Without dead ends: 195 [2021-11-07 01:43:08,500 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:43:08,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-07 01:43:08,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-07 01:43:08,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 194 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:08,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2021-11-07 01:43:08,578 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 62 [2021-11-07 01:43:08,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:08,579 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2021-11-07 01:43:08,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:08,580 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2021-11-07 01:43:08,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 01:43:08,583 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:08,583 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:08,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:08,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:08,808 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:43:08,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:08,809 INFO L85 PathProgramCache]: Analyzing trace with hash 312696489, now seen corresponding path program 1 times [2021-11-07 01:43:08,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:08,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106957777] [2021-11-07 01:43:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:08,818 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:08,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:08,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:08,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:43:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:13,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:43:13,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:14,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:14,613 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:14,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106957777] [2021-11-07 01:43:14,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106957777] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:14,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:14,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:43:14,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544925070] [2021-11-07 01:43:14,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:14,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:14,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:14,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:14,617 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:15,127 INFO L93 Difference]: Finished difference Result 547 states and 727 transitions. [2021-11-07 01:43:15,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:43:15,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-07 01:43:15,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:15,139 INFO L225 Difference]: With dead ends: 547 [2021-11-07 01:43:15,140 INFO L226 Difference]: Without dead ends: 374 [2021-11-07 01:43:15,160 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:15,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-07 01:43:15,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 201. [2021-11-07 01:43:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 200 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:15,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 263 transitions. [2021-11-07 01:43:15,188 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 263 transitions. Word has length 65 [2021-11-07 01:43:15,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:15,189 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 263 transitions. [2021-11-07 01:43:15,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:15,189 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 263 transitions. [2021-11-07 01:43:15,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 01:43:15,192 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:15,192 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:15,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:15,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:15,416 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:43:15,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:15,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1921794729, now seen corresponding path program 1 times [2021-11-07 01:43:15,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:15,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747932635] [2021-11-07 01:43:15,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:15,421 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:15,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:15,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:15,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:43:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:20,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:43:20,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:20,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:20,835 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:20,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747932635] [2021-11-07 01:43:20,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747932635] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:20,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:20,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:43:20,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584708842] [2021-11-07 01:43:20,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:43:20,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:20,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:43:20,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:43:20,838 INFO L87 Difference]: Start difference. First operand 201 states and 263 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:21,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:21,174 INFO L93 Difference]: Finished difference Result 379 states and 499 transitions. [2021-11-07 01:43:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:43:21,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 69 [2021-11-07 01:43:21,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:21,177 INFO L225 Difference]: With dead ends: 379 [2021-11-07 01:43:21,177 INFO L226 Difference]: Without dead ends: 201 [2021-11-07 01:43:21,178 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:43:21,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-07 01:43:21,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 195. [2021-11-07 01:43:21,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.3386243386243386) internal successors, (253), 194 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:21,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 253 transitions. [2021-11-07 01:43:21,191 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 253 transitions. Word has length 69 [2021-11-07 01:43:21,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:21,192 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 253 transitions. [2021-11-07 01:43:21,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:21,192 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 253 transitions. [2021-11-07 01:43:21,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 01:43:21,195 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:21,195 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] [2021-11-07 01:43:21,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:43:21,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:21,408 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:43:21,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:21,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1564681509, now seen corresponding path program 1 times [2021-11-07 01:43:21,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:21,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743344120] [2021-11-07 01:43:21,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:21,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:21,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:21,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:21,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:43:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:26,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:43:26,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:26,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:43:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:27,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:27,368 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 30 treesize of output 26 [2021-11-07 01:43:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:27,826 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:27,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743344120] [2021-11-07 01:43:27,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743344120] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:27,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:27,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 01:43:27,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452256856] [2021-11-07 01:43:27,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:43:27,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:27,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:43:27,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:43:27,829 INFO L87 Difference]: Start difference. First operand 195 states and 253 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:37,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:37,030 INFO L93 Difference]: Finished difference Result 399 states and 520 transitions. [2021-11-07 01:43:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:43:37,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 75 [2021-11-07 01:43:37,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:37,034 INFO L225 Difference]: With dead ends: 399 [2021-11-07 01:43:37,034 INFO L226 Difference]: Without dead ends: 239 [2021-11-07 01:43:37,035 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:43:37,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-07 01:43:37,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 216. [2021-11-07 01:43:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 210 states have (on average 1.319047619047619) internal successors, (277), 215 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:37,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 277 transitions. [2021-11-07 01:43:37,052 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 277 transitions. Word has length 75 [2021-11-07 01:43:37,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:37,053 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 277 transitions. [2021-11-07 01:43:37,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:37,053 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 277 transitions. [2021-11-07 01:43:37,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 01:43:37,055 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:37,055 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] [2021-11-07 01:43:37,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:37,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:37,280 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:43:37,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:37,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2045761767, now seen corresponding path program 1 times [2021-11-07 01:43:37,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:37,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676982069] [2021-11-07 01:43:37,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:37,283 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:37,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:37,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:37,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:43:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:41,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:43:41,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:41,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:41,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:42,391 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:42,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676982069] [2021-11-07 01:43:42,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676982069] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:42,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:42,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:43:42,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982474575] [2021-11-07 01:43:42,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:43:42,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:42,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:43:42,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:43:42,394 INFO L87 Difference]: Start difference. First operand 216 states and 277 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:42,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:42,630 INFO L93 Difference]: Finished difference Result 398 states and 516 transitions. [2021-11-07 01:43:42,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:43:42,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 75 [2021-11-07 01:43:42,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:42,634 INFO L225 Difference]: With dead ends: 398 [2021-11-07 01:43:42,634 INFO L226 Difference]: Without dead ends: 214 [2021-11-07 01:43:42,634 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 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 01:43:42,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-07 01:43:42,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-07 01:43:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 208 states have (on average 1.2980769230769231) internal successors, (270), 213 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:42,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 270 transitions. [2021-11-07 01:43:42,648 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 270 transitions. Word has length 75 [2021-11-07 01:43:42,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:42,648 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 270 transitions. [2021-11-07 01:43:42,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:42,648 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 270 transitions. [2021-11-07 01:43:42,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 01:43:42,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:42,651 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] [2021-11-07 01:43:42,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:42,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:42,864 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:43:42,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:42,864 INFO L85 PathProgramCache]: Analyzing trace with hash -601323936, now seen corresponding path program 1 times [2021-11-07 01:43:42,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:42,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391937494] [2021-11-07 01:43:42,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:42,867 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:42,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:42,868 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:42,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:43:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:43:47,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:43:47,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:43:47,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:43:47,695 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 16 treesize of output 8 [2021-11-07 01:43:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:47,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:43:48,159 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 30 treesize of output 26 [2021-11-07 01:43:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:43:48,568 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:43:48,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391937494] [2021-11-07 01:43:48,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391937494] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:43:48,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:43:48,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:43:48,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617759571] [2021-11-07 01:43:48,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:43:48,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:43:48,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:43:48,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:43:48,570 INFO L87 Difference]: Start difference. First operand 214 states and 270 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:58,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:43:58,298 INFO L93 Difference]: Finished difference Result 519 states and 671 transitions. [2021-11-07 01:43:58,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:43:58,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 77 [2021-11-07 01:43:58,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:43:58,304 INFO L225 Difference]: With dead ends: 519 [2021-11-07 01:43:58,304 INFO L226 Difference]: Without dead ends: 339 [2021-11-07 01:43:58,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:43:58,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-11-07 01:43:58,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 215. [2021-11-07 01:43:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.291866028708134) internal successors, (270), 214 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:58,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 270 transitions. [2021-11-07 01:43:58,320 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 270 transitions. Word has length 77 [2021-11-07 01:43:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:43:58,322 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 270 transitions. [2021-11-07 01:43:58,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:43:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 270 transitions. [2021-11-07 01:43:58,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 01:43:58,328 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:43:58,328 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:43:58,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:43:58,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:43:58,544 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:43:58,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:43:58,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1211223159, now seen corresponding path program 1 times [2021-11-07 01:43:58,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:43:58,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062689654] [2021-11-07 01:43:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:43:58,547 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:43:58,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:43:58,548 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:43:58,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:44:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:03,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:44:03,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:03,297 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 01:44:03,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:03,508 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 01:44:03,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:03,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062689654] [2021-11-07 01:44:03,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062689654] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:03,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:03,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:44:03,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427920130] [2021-11-07 01:44:03,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:44:03,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:03,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:44:03,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:44:03,510 INFO L87 Difference]: Start difference. First operand 215 states and 270 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:03,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:03,990 INFO L93 Difference]: Finished difference Result 421 states and 549 transitions. [2021-11-07 01:44:03,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:44:03,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 01:44:03,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:03,993 INFO L225 Difference]: With dead ends: 421 [2021-11-07 01:44:03,993 INFO L226 Difference]: Without dead ends: 291 [2021-11-07 01:44:03,994 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:44:03,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-07 01:44:04,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 215. [2021-11-07 01:44:04,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.2822966507177034) internal successors, (268), 214 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:04,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 268 transitions. [2021-11-07 01:44:04,006 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 268 transitions. Word has length 78 [2021-11-07 01:44:04,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:04,007 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 268 transitions. [2021-11-07 01:44:04,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:04,007 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 268 transitions. [2021-11-07 01:44:04,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 01:44:04,008 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:04,008 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 01:44:04,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:04,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:04,212 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:44:04,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:04,212 INFO L85 PathProgramCache]: Analyzing trace with hash -443995649, now seen corresponding path program 1 times [2021-11-07 01:44:04,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:04,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673713781] [2021-11-07 01:44:04,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:04,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:04,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:04,216 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:04,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:44:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:08,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:44:08,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:09,341 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 32 treesize of output 24 [2021-11-07 01:44:09,349 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 21 treesize of output 13 [2021-11-07 01:44:09,537 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 01:44:09,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:09,967 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 01:44:09,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:09,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673713781] [2021-11-07 01:44:09,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673713781] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:09,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:09,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:44:09,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940823814] [2021-11-07 01:44:09,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:44:09,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:09,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:44:09,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:44:09,970 INFO L87 Difference]: Start difference. First operand 215 states and 268 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:24,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:24,470 INFO L93 Difference]: Finished difference Result 374 states and 479 transitions. [2021-11-07 01:44:24,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:44:24,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 01:44:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:24,475 INFO L225 Difference]: With dead ends: 374 [2021-11-07 01:44:24,475 INFO L226 Difference]: Without dead ends: 246 [2021-11-07 01:44:24,476 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:44:24,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-07 01:44:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 195. [2021-11-07 01:44:24,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.2698412698412698) internal successors, (240), 194 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 240 transitions. [2021-11-07 01:44:24,490 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 240 transitions. Word has length 82 [2021-11-07 01:44:24,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:24,490 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 240 transitions. [2021-11-07 01:44:24,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:24,491 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 240 transitions. [2021-11-07 01:44:24,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 01:44:24,492 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:24,492 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 01:44:24,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:24,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:24,720 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:44:24,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:24,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1981477469, now seen corresponding path program 1 times [2021-11-07 01:44:24,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:24,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102784871] [2021-11-07 01:44:24,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:24,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:24,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:24,726 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:24,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:44:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:29,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:44:29,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:29,865 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 01:44:29,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:30,075 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 01:44:30,075 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:30,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102784871] [2021-11-07 01:44:30,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102784871] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:30,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:30,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:44:30,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427050871] [2021-11-07 01:44:30,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:44:30,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:30,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:44:30,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:44:30,076 INFO L87 Difference]: Start difference. First operand 195 states and 240 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:30,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:30,147 INFO L93 Difference]: Finished difference Result 318 states and 404 transitions. [2021-11-07 01:44:30,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:44:30,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-07 01:44:30,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:30,150 INFO L225 Difference]: With dead ends: 318 [2021-11-07 01:44:30,150 INFO L226 Difference]: Without dead ends: 197 [2021-11-07 01:44:30,151 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:44:30,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-07 01:44:30,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-07 01:44:30,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 191 states have (on average 1.2670157068062826) internal successors, (242), 196 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:30,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 242 transitions. [2021-11-07 01:44:30,165 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 242 transitions. Word has length 84 [2021-11-07 01:44:30,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:30,166 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 242 transitions. [2021-11-07 01:44:30,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:30,166 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 242 transitions. [2021-11-07 01:44:30,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 01:44:30,167 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:30,168 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:30,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:30,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:30,372 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:44:30,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:30,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1445575357, now seen corresponding path program 1 times [2021-11-07 01:44:30,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:30,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524780840] [2021-11-07 01:44:30,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:30,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:30,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:30,380 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:30,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:44:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:35,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:44:35,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:35,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:36,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:36,329 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:36,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524780840] [2021-11-07 01:44:36,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524780840] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:44:36,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [766222510] [2021-11-07 01:44:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:36,330 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:44:36,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:44:36,337 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:44:36,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 01:44:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:38,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:44:38,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:44:38,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:39,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:44:39,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [766222510] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:39,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:44:39,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-11-07 01:44:39,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116626145] [2021-11-07 01:44:39,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:44:39,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:39,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:44:39,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:44:39,149 INFO L87 Difference]: Start difference. First operand 197 states and 242 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:42,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:42,142 INFO L93 Difference]: Finished difference Result 280 states and 350 transitions. [2021-11-07 01:44:42,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:44:42,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 01:44:42,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:42,147 INFO L225 Difference]: With dead ends: 280 [2021-11-07 01:44:42,147 INFO L226 Difference]: Without dead ends: 198 [2021-11-07 01:44:42,148 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:44:42,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-07 01:44:42,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 197. [2021-11-07 01:44:42,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 191 states have (on average 1.256544502617801) internal successors, (240), 196 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:42,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 240 transitions. [2021-11-07 01:44:42,163 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 240 transitions. Word has length 86 [2021-11-07 01:44:42,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:42,163 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 240 transitions. [2021-11-07 01:44:42,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:42,164 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 240 transitions. [2021-11-07 01:44:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 01:44:42,165 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:42,165 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:42,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:42,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:42,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:42,572 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:44:42,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:42,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1862922237, now seen corresponding path program 1 times [2021-11-07 01:44:42,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:42,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437436662] [2021-11-07 01:44:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:42,575 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:42,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:42,579 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:42,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:44:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:47,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:44:47,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:48,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:48,593 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:48,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437436662] [2021-11-07 01:44:48,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437436662] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:44:48,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1754660825] [2021-11-07 01:44:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:48,594 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:44:48,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:44:48,604 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:44:48,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-07 01:44:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:54,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:44:54,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:54,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:54,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:54,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1754660825] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:44:54,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809406945] [2021-11-07 01:44:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:54,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:44:54,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:44:54,663 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:44:54,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 01:44:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:57,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:44:57,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:57,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:57,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:44:57,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809406945] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:44:57,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:44:57,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2021-11-07 01:44:57,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197532032] [2021-11-07 01:44:57,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:44:57,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:57,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:44:57,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:44:57,969 INFO L87 Difference]: Start difference. First operand 197 states and 240 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:58,413 INFO L93 Difference]: Finished difference Result 322 states and 406 transitions. [2021-11-07 01:44:58,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:44:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 01:44:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:58,415 INFO L225 Difference]: With dead ends: 322 [2021-11-07 01:44:58,415 INFO L226 Difference]: Without dead ends: 201 [2021-11-07 01:44:58,416 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:44:58,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-07 01:44:58,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-07 01:44:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.2512820512820513) internal successors, (244), 200 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 244 transitions. [2021-11-07 01:44:58,431 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 244 transitions. Word has length 87 [2021-11-07 01:44:58,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:58,432 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 244 transitions. [2021-11-07 01:44:58,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:44:58,432 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 244 transitions. [2021-11-07 01:44:58,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 01:44:58,433 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:58,433 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:58,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-07 01:44:58,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-11-07 01:44:58,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:59,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:59,052 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:44:59,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash 756105021, now seen corresponding path program 2 times [2021-11-07 01:44:59,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:59,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113346062] [2021-11-07 01:44:59,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:44:59,056 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:59,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:59,059 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:59,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93bea208-7945-47da-b210-1f77f26bb1f7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 01:45:55,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 01:45:55,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:45:56,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1829 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-07 01:45:56,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:56,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:45:56,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-07 01:45:59,756 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 509 treesize of output 377 [2021-11-07 01:45:59,774 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 310 treesize of output 206 [2021-11-07 01:46:08,135 WARN L207 SmtUtils]: Spent 7.65 s on a formula simplification. DAG size of input: 533 DAG size of output: 220 [2021-11-07 01:46:08,147 INFO L354 Elim1Store]: treesize reduction 5843, result has 10.6 percent of original size [2021-11-07 01:46:08,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 588 treesize of output 772