./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/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_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/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_9a9dfd51-cde0-4469-99d7-39227b31b11b/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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:23:42,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:23:42,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:23:42,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:23:42,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:23:42,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:23:42,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:23:42,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:23:42,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:23:42,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:23:42,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:23:42,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:23:42,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:23:42,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:23:42,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:23:42,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:23:42,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:23:42,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:23:42,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:23:42,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:23:42,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:23:42,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:23:42,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:23:42,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:23:42,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:23:42,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:23:42,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:23:42,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:23:42,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:23:42,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:23:42,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:23:42,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:23:42,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:23:42,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:23:42,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:23:42,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:23:42,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:23:42,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:23:42,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:23:42,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:23:42,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:23:42,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:23:42,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:23:42,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:23:42,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:23:42,442 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:23:42,443 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:23:42,443 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:23:42,443 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:23:42,443 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:23:42,444 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:23:42,444 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:23:42,444 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:23:42,445 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:23:42,445 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:23:42,445 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:23:42,446 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:23:42,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:23:42,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:23:42,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:23:42,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:23:42,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:23:42,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:23:42,449 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:23:42,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:23:42,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:23:42,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:23:42,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:23:42,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:23:42,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:23:42,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:23:42,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:23:42,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:23:42,452 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:23:42,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:23:42,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:23:42,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:23:42,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:23:42,453 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2021-11-07 01:23:42,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:23:42,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:23:42,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:23:42,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:23:42,778 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:23:42,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-07 01:23:42,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data/2b6287e1b/f1558ddad6d0446b9b997e749cda8fce/FLAG427911ef2 [2021-11-07 01:23:43,854 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:23:43,861 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-07 01:23:43,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data/2b6287e1b/f1558ddad6d0446b9b997e749cda8fce/FLAG427911ef2 [2021-11-07 01:23:44,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data/2b6287e1b/f1558ddad6d0446b9b997e749cda8fce [2021-11-07 01:23:44,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:23:44,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:23:44,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:23:44,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:23:44,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:23:44,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:44" (1/1) ... [2021-11-07 01:23:44,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3118b45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:44, skipping insertion in model container [2021-11-07 01:23:44,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:44" (1/1) ... [2021-11-07 01:23:44,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:23:44,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:23:44,933 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-07 01:23:44,941 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-07 01:23:44,970 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:23:44,978 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:23:46,177 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,178 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,179 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,180 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,182 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,732 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:23:46,733 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:23:46,735 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:23:46,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:23:46,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:23:46,740 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:23:46,741 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:23:46,742 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:23:46,743 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:23:46,744 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:23:46,951 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:23:46,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:46,996 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,118 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,127 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,127 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,128 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:47,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:23:47,215 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 01:23:47,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d1a8ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:47, skipping insertion in model container [2021-11-07 01:23:47,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:23:47,216 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:23:47,222 INFO L168 Benchmark]: Toolchain (without parser) took 2871.72 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 56.5 MB in the beginning and 58.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:23:47,223 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:23:47,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2868.47 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 56.5 MB in the beginning and 58.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:23:47,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2868.47 ms. Allocated memory was 98.6 MB in the beginning and 130.0 MB in the end (delta: 31.5 MB). Free memory was 56.5 MB in the beginning and 58.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7039]: 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/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_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/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_9a9dfd51-cde0-4469-99d7-39227b31b11b/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 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:23:50,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:23:50,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:23:50,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:23:50,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:23:50,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:23:50,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:23:50,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:23:50,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:23:50,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:23:50,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:23:50,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:23:50,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:23:50,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:23:50,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:23:50,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:23:50,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:23:50,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:23:50,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:23:50,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:23:50,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:23:50,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:23:50,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:23:50,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:23:50,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:23:50,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:23:50,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:23:50,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:23:50,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:23:50,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:23:50,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:23:50,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:23:50,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:23:50,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:23:50,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:23:50,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:23:50,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:23:50,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:23:50,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:23:50,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:23:50,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:23:50,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:23:50,228 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:23:50,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:23:50,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:23:50,230 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:23:50,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:23:50,231 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:23:50,231 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:23:50,231 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:23:50,232 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:23:50,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:23:50,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:23:50,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:23:50,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:23:50,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:23:50,234 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:23:50,234 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:23:50,235 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:23:50,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:23:50,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:23:50,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:23:50,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:23:50,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:23:50,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:23:50,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:23:50,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:23:50,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:23:50,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:23:50,238 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:23:50,238 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:23:50,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:23:50,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:23:50,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:23:50,239 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2021-11-07 01:23:50,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:23:50,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:23:50,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:23:50,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:23:50,723 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:23:50,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-07 01:23:50,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data/230ea2d8c/63134e22e9a940cb9f7d5c7f44aeb192/FLAG7ebb2d457 [2021-11-07 01:23:52,051 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:23:52,052 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2021-11-07 01:23:52,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data/230ea2d8c/63134e22e9a940cb9f7d5c7f44aeb192/FLAG7ebb2d457 [2021-11-07 01:23:52,366 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/data/230ea2d8c/63134e22e9a940cb9f7d5c7f44aeb192 [2021-11-07 01:23:52,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:23:52,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:23:52,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:23:52,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:23:52,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:23:52,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:52" (1/1) ... [2021-11-07 01:23:52,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60278242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:52, skipping insertion in model container [2021-11-07 01:23:52,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:52" (1/1) ... [2021-11-07 01:23:52,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:23:52,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:23:52,958 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-07 01:23:52,966 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-07 01:23:52,993 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:23:53,000 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:23:54,441 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,442 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,443 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,444 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,492 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,514 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:54,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,017 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:23:55,019 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:23:55,048 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:23:55,052 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:23:55,054 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:23:55,055 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:23:55,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:23:55,060 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:23:55,061 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:23:55,062 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:23:55,290 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:23:55,332 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,341 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,424 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,427 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,435 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,436 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,437 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,437 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,442 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,443 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,459 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:23:55,554 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:23:55,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:23:55,649 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-07 01:23:55,653 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-07 01:23:55,662 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:23:55,663 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:23:55,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,742 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,743 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,745 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:23:55,818 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:23:55,819 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:23:55,820 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:23:55,821 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:23:55,823 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:23:55,825 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:23:55,825 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:23:55,827 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:23:55,827 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:23:55,871 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:23:55,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,985 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,986 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,987 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,988 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,989 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,990 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,991 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,992 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,997 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:55,998 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,005 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,006 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,007 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:23:56,034 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:23:56,050 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2021-11-07 01:23:56,051 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_9a9dfd51-cde0-4469-99d7-39227b31b11b/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2021-11-07 01:23:56,053 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:23:56,054 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:23:56,089 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,090 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,090 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,091 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:23:56,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:23:56,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:23:56,142 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:23:56,143 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:23:56,144 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:23:56,144 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:23:56,145 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:23:56,145 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:23:56,146 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:23:56,193 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:23:56,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,228 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,264 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,267 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,269 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,276 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,288 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:23:56,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:23:56,723 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:23:56,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56 WrapperNode [2021-11-07 01:23:56,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:23:56,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:23:56,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:23:56,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:23:56,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:56,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:57,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:23:57,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:23:57,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:23:57,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:23:57,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:57,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:57,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:57,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:58,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:58,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:58,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:58,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:23:58,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:23:58,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:23:58,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:23:58,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (1/1) ... [2021-11-07 01:23:58,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:23:58,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:23:58,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:23:58,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:23:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:23:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:23:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:23:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:23:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:23:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:23:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:23:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:23:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:23:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:23:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:23:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:23:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 01:23:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:23:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:23:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:23:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:25:04,212 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:25:04,213 INFO L299 CfgBuilder]: Removed 2646 assume(true) statements. [2021-11-07 01:25:04,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:04 BoogieIcfgContainer [2021-11-07 01:25:04,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:25:04,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:25:04,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:25:04,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:25:04,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:23:52" (1/3) ... [2021-11-07 01:25:04,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff9651c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:04, skipping insertion in model container [2021-11-07 01:25:04,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:56" (2/3) ... [2021-11-07 01:25:04,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff9651c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:04, skipping insertion in model container [2021-11-07 01:25:04,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:04" (3/3) ... [2021-11-07 01:25:04,229 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2021-11-07 01:25:04,235 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:25:04,236 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-07 01:25:04,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:25:04,322 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 01:25:04,322 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-07 01:25:04,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 3341 states, 3253 states have (on average 1.4223793421457116) internal successors, (4627), 3340 states have internal predecessors, (4627), 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 01:25:04,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 01:25:04,427 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:04,428 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] [2021-11-07 01:25:04,429 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:25:04,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:04,436 INFO L85 PathProgramCache]: Analyzing trace with hash 462763660, now seen corresponding path program 1 times [2021-11-07 01:25:04,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:04,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256774448] [2021-11-07 01:25:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:04,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:04,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:04,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:04,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:25:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:09,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:25:09,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:09,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:09,772 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 01:25:09,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:09,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256774448] [2021-11-07 01:25:09,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256774448] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:09,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:09,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:25:09,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34978135] [2021-11-07 01:25:09,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:25:09,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:09,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:25:09,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:25:09,811 INFO L87 Difference]: Start difference. First operand has 3341 states, 3253 states have (on average 1.4223793421457116) internal successors, (4627), 3340 states have internal predecessors, (4627), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 01:25:10,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:10,026 INFO L93 Difference]: Finished difference Result 6676 states and 9247 transitions. [2021-11-07 01:25:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:25:10,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2021-11-07 01:25:10,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:10,069 INFO L225 Difference]: With dead ends: 6676 [2021-11-07 01:25:10,069 INFO L226 Difference]: Without dead ends: 3336 [2021-11-07 01:25:10,081 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 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 01:25:10,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-07 01:25:10,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-07 01:25:10,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.327485380116959) internal successors, (4313), 3335 states have internal predecessors, (4313), 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 01:25:10,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4313 transitions. [2021-11-07 01:25:10,268 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4313 transitions. Word has length 55 [2021-11-07 01:25:10,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:10,268 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4313 transitions. [2021-11-07 01:25:10,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 01:25:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4313 transitions. [2021-11-07 01:25:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 01:25:10,273 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:10,273 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] [2021-11-07 01:25:10,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:10,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:10,474 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:25:10,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:10,475 INFO L85 PathProgramCache]: Analyzing trace with hash -349284918, now seen corresponding path program 1 times [2021-11-07 01:25:10,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:10,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311125908] [2021-11-07 01:25:10,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:10,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:10,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:10,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:10,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:25:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:15,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:25:15,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:16,005 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 01:25:16,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:16,442 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 01:25:16,442 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:16,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311125908] [2021-11-07 01:25:16,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311125908] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:16,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:16,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:25:16,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174637791] [2021-11-07 01:25:16,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:16,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:16,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:16,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:16,446 INFO L87 Difference]: Start difference. First operand 3336 states and 4313 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 01:25:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:19,462 INFO L93 Difference]: Finished difference Result 6592 states and 8521 transitions. [2021-11-07 01:25:19,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:19,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 55 [2021-11-07 01:25:19,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:19,486 INFO L225 Difference]: With dead ends: 6592 [2021-11-07 01:25:19,488 INFO L226 Difference]: Without dead ends: 3336 [2021-11-07 01:25:19,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 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 01:25:19,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-07 01:25:19,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-07 01:25:19,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.327177593105571) internal successors, (4312), 3335 states have internal predecessors, (4312), 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 01:25:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4312 transitions. [2021-11-07 01:25:19,612 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4312 transitions. Word has length 55 [2021-11-07 01:25:19,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:19,613 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4312 transitions. [2021-11-07 01:25:19,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 01:25:19,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4312 transitions. [2021-11-07 01:25:19,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 01:25:19,625 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:19,630 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] [2021-11-07 01:25:19,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:19,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:19,845 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:25:19,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:19,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1031328699, now seen corresponding path program 1 times [2021-11-07 01:25:19,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:19,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320833291] [2021-11-07 01:25:19,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:19,850 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:19,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:19,855 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:19,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:25:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:24,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:25:24,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:25,378 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 01:25:25,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:25,953 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 01:25:25,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:25,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320833291] [2021-11-07 01:25:25,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320833291] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:25,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:25,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:25:25,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67194256] [2021-11-07 01:25:25,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:25:25,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:25,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:25:25,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:25:25,957 INFO L87 Difference]: Start difference. First operand 3336 states and 4312 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 01:25:49,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:49,091 INFO L93 Difference]: Finished difference Result 9049 states and 11599 transitions. [2021-11-07 01:25:49,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:25:49,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 59 [2021-11-07 01:25:49,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:49,126 INFO L225 Difference]: With dead ends: 9049 [2021-11-07 01:25:49,126 INFO L226 Difference]: Without dead ends: 5761 [2021-11-07 01:25:49,134 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:25:49,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5761 states. [2021-11-07 01:25:49,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5761 to 3336. [2021-11-07 01:25:49,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3268698060941828) internal successors, (4311), 3335 states have internal predecessors, (4311), 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 01:25:49,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4311 transitions. [2021-11-07 01:25:49,251 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4311 transitions. Word has length 59 [2021-11-07 01:25:49,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:49,251 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4311 transitions. [2021-11-07 01:25:49,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 01:25:49,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4311 transitions. [2021-11-07 01:25:49,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 01:25:49,253 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:49,253 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] [2021-11-07 01:25:49,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:49,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:49,467 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:25:49,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:49,467 INFO L85 PathProgramCache]: Analyzing trace with hash -321488865, now seen corresponding path program 1 times [2021-11-07 01:25:49,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:49,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538211499] [2021-11-07 01:25:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:49,471 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:49,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:49,473 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:49,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:25:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:54,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:25:54,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:55,246 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 01:25:55,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:55,794 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 01:25:55,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:55,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538211499] [2021-11-07 01:25:55,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538211499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:55,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:55,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:25:55,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023399393] [2021-11-07 01:25:55,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:25:55,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:55,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:25:55,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:55,797 INFO L87 Difference]: Start difference. First operand 3336 states and 4311 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 01:26:00,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:00,452 INFO L93 Difference]: Finished difference Result 6593 states and 8520 transitions. [2021-11-07 01:26:00,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:26:00,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2021-11-07 01:26:00,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:00,475 INFO L225 Difference]: With dead ends: 6593 [2021-11-07 01:26:00,475 INFO L226 Difference]: Without dead ends: 3336 [2021-11-07 01:26:00,482 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 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 01:26:00,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-07 01:26:00,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-07 01:26:00,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3265620190827947) internal successors, (4310), 3335 states have internal predecessors, (4310), 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 01:26:00,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4310 transitions. [2021-11-07 01:26:00,588 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4310 transitions. Word has length 67 [2021-11-07 01:26:00,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:00,588 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4310 transitions. [2021-11-07 01:26:00,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 01:26:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4310 transitions. [2021-11-07 01:26:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 01:26:00,590 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:00,591 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] [2021-11-07 01:26:00,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:00,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:00,813 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:26:00,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:00,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1460829938, now seen corresponding path program 1 times [2021-11-07 01:26:00,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:00,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292845790] [2021-11-07 01:26:00,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:00,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:00,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:00,820 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:00,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:26:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:06,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:26:06,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:06,911 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 01:26:06,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:07,595 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 01:26:07,595 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:07,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292845790] [2021-11-07 01:26:07,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292845790] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:07,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:07,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-07 01:26:07,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771990443] [2021-11-07 01:26:07,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:26:07,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:07,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:26:07,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:26:07,598 INFO L87 Difference]: Start difference. First operand 3336 states and 4310 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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 01:26:25,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:25,876 INFO L93 Difference]: Finished difference Result 6609 states and 8542 transitions. [2021-11-07 01:26:25,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:26:25,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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 79 [2021-11-07 01:26:25,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:25,896 INFO L225 Difference]: With dead ends: 6609 [2021-11-07 01:26:25,896 INFO L226 Difference]: Without dead ends: 3336 [2021-11-07 01:26:25,903 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:26:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2021-11-07 01:26:25,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3336. [2021-11-07 01:26:25,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3249 states have (on average 1.3262542320714066) internal successors, (4309), 3335 states have internal predecessors, (4309), 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 01:26:26,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4309 transitions. [2021-11-07 01:26:26,009 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4309 transitions. Word has length 79 [2021-11-07 01:26:26,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:26,010 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4309 transitions. [2021-11-07 01:26:26,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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 01:26:26,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4309 transitions. [2021-11-07 01:26:26,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 01:26:26,011 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:26,012 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:26,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:26,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:26,237 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:26:26,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:26,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1730269398, now seen corresponding path program 1 times [2021-11-07 01:26:26,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:26,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718677291] [2021-11-07 01:26:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:26,241 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:26,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:26,242 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:26,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:26:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:31,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:26:31,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:32,449 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 01:26:32,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:32,858 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 01:26:32,858 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:32,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718677291] [2021-11-07 01:26:32,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718677291] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:32,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:32,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:26:32,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537156412] [2021-11-07 01:26:32,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:26:32,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:32,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:26:32,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:26:32,863 INFO L87 Difference]: Start difference. First operand 3336 states and 4309 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:36,739 INFO L93 Difference]: Finished difference Result 9539 states and 12277 transitions. [2021-11-07 01:26:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:26:36,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 01:26:36,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:36,770 INFO L225 Difference]: With dead ends: 9539 [2021-11-07 01:26:36,771 INFO L226 Difference]: Without dead ends: 6281 [2021-11-07 01:26:36,778 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:26:36,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-11-07 01:26:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 3450. [2021-11-07 01:26:36,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3450 states, 3363 states have (on average 1.326494201605709) internal successors, (4461), 3449 states have internal predecessors, (4461), 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 01:26:36,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3450 states to 3450 states and 4461 transitions. [2021-11-07 01:26:36,917 INFO L78 Accepts]: Start accepts. Automaton has 3450 states and 4461 transitions. Word has length 87 [2021-11-07 01:26:36,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:36,917 INFO L470 AbstractCegarLoop]: Abstraction has 3450 states and 4461 transitions. [2021-11-07 01:26:36,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3450 states and 4461 transitions. [2021-11-07 01:26:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 01:26:36,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:36,919 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:36,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:37,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:37,145 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:26:37,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:37,145 INFO L85 PathProgramCache]: Analyzing trace with hash -832876120, now seen corresponding path program 1 times [2021-11-07 01:26:37,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:37,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292540951] [2021-11-07 01:26:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:37,149 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:37,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:37,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:37,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:26:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:42,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:26:42,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:44,301 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 01:26:44,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:45,274 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 01:26:45,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:26:45,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292540951] [2021-11-07 01:26:45,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292540951] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:26:45,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:26:45,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:26:45,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57793250] [2021-11-07 01:26:45,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:26:45,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:26:45,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:26:45,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:26:45,276 INFO L87 Difference]: Start difference. First operand 3450 states and 4461 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 01:34:21,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:21,381 INFO L93 Difference]: Finished difference Result 9519 states and 12236 transitions. [2021-11-07 01:34:21,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:34:21,385 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 01:34:21,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:21,412 INFO L225 Difference]: With dead ends: 9519 [2021-11-07 01:34:21,412 INFO L226 Difference]: Without dead ends: 6144 [2021-11-07 01:34:21,418 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:34:21,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2021-11-07 01:34:21,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 3450. [2021-11-07 01:34:21,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3450 states, 3363 states have (on average 1.320844484091585) internal successors, (4442), 3449 states have internal predecessors, (4442), 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 01:34:21,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3450 states to 3450 states and 4442 transitions. [2021-11-07 01:34:21,572 INFO L78 Accepts]: Start accepts. Automaton has 3450 states and 4442 transitions. Word has length 87 [2021-11-07 01:34:21,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:21,573 INFO L470 AbstractCegarLoop]: Abstraction has 3450 states and 4442 transitions. [2021-11-07 01:34:21,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 01:34:21,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3450 states and 4442 transitions. [2021-11-07 01:34:21,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 01:34:21,575 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:21,576 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:21,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:21,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:34:21,789 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:34:21,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:21,789 INFO L85 PathProgramCache]: Analyzing trace with hash -409229398, now seen corresponding path program 1 times [2021-11-07 01:34:21,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:34:21,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579404792] [2021-11-07 01:34:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:21,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:34:21,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:34:21,793 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:34:21,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a9dfd51-cde0-4469-99d7-39227b31b11b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:34:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:26,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:34:26,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:28,258 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 01:34:28,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:29,052 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 01:34:29,052 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:34:29,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579404792] [2021-11-07 01:34:29,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579404792] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:34:29,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:34:29,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-07 01:34:29,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993585217] [2021-11-07 01:34:29,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:34:29,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:34:29,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:34:29,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:34:29,054 INFO L87 Difference]: Start difference. First operand 3450 states and 4442 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 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)