./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_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_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/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_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/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_68056c2e-3790-432b-9b90-6bd4f20c9245/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 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:08:21,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:08:21,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:08:21,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:08:21,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:08:21,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:08:21,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:08:21,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:08:21,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:08:21,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:08:21,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:08:21,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:08:21,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:08:21,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:08:21,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:08:21,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:08:21,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:08:21,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:08:21,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:08:21,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:08:21,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:08:21,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:08:21,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:08:21,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:08:21,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:08:21,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:08:21,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:08:21,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:08:21,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:08:21,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:08:21,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:08:21,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:08:21,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:08:21,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:08:21,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:08:21,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:08:21,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:08:21,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:08:21,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:08:21,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:08:21,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:08:21,593 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:08:21,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:08:21,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:08:21,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:08:21,657 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:08:21,657 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:08:21,658 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:08:21,658 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:08:21,658 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:08:21,665 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:08:21,666 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:08:21,666 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:08:21,666 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:08:21,666 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:08:21,667 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:08:21,667 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:08:21,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:08:21,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:08:21,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:08:21,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:08:21,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:08:21,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:08:21,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:08:21,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:08:21,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:08:21,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:08:21,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:08:21,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:08:21,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:08:21,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:08:21,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:08:21,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:08:21,676 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:08:21,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:08:21,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:08:21,677 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:08:21,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:08:21,678 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_68056c2e-3790-432b-9b90-6bd4f20c9245/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 [2021-11-07 02:08:21,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:08:22,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:08:22,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:08:22,031 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:08:22,032 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:08:22,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-11-07 02:08:22,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data/91ccd269b/2b1f382a401f469da41c189f47f4a1ff/FLAGb8c3beac4 [2021-11-07 02:08:23,253 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:08:23,254 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-11-07 02:08:23,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data/91ccd269b/2b1f382a401f469da41c189f47f4a1ff/FLAGb8c3beac4 [2021-11-07 02:08:23,571 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data/91ccd269b/2b1f382a401f469da41c189f47f4a1ff [2021-11-07 02:08:23,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:08:23,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:08:23,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:08:23,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:08:23,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:08:23,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:23" (1/1) ... [2021-11-07 02:08:23,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63832f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:23, skipping insertion in model container [2021-11-07 02:08:23,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:23" (1/1) ... [2021-11-07 02:08:23,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:08:23,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:08:24,161 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_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-11-07 02:08:24,171 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_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-11-07 02:08:24,207 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:08:24,216 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:08:25,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,660 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:25,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:26,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:08:26,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:08:26,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:08:26,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:08:26,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:08:26,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:08:26,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:08:26,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:08:26,343 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:08:26,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:08:26,647 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:08:27,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,178 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,233 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,239 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,249 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,250 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:27,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:08:27,413 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 02:08:27,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@484e4c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:27, skipping insertion in model container [2021-11-07 02:08:27,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:08:27,414 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:08:27,417 INFO L168 Benchmark]: Toolchain (without parser) took 3836.83 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 65.2 MB in the beginning and 68.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:08:27,418 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:08:27,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3831.34 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 65.2 MB in the beginning and 68.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:08:27,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 107.0 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3831.34 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 65.2 MB in the beginning and 68.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7051]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/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_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/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_68056c2e-3790-432b-9b90-6bd4f20c9245/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 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:08:30,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:08:30,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:08:30,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:08:30,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:08:30,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:08:30,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:08:30,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:08:30,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:08:30,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:08:30,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:08:30,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:08:30,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:08:30,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:08:30,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:08:30,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:08:30,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:08:30,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:08:30,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:08:30,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:08:30,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:08:30,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:08:30,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:08:30,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:08:30,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:08:30,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:08:30,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:08:30,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:08:30,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:08:30,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:08:30,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:08:30,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:08:30,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:08:30,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:08:30,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:08:30,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:08:30,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:08:30,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:08:30,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:08:30,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:08:30,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:08:30,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:08:30,422 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:08:30,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:08:30,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:08:30,424 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:08:30,425 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:08:30,425 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:08:30,425 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:08:30,425 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:08:30,426 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:08:30,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:08:30,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:08:30,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:08:30,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:08:30,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:08:30,430 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:08:30,430 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:08:30,430 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:08:30,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:08:30,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:08:30,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:08:30,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:08:30,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:08:30,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:08:30,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:08:30,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:08:30,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:08:30,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:08:30,433 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:08:30,433 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:08:30,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:08:30,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:08:30,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:08:30,434 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_68056c2e-3790-432b-9b90-6bd4f20c9245/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bf4efa014e51efebc29a26fae4d93bdd4ac97a340040c60e527138ec3a88197 [2021-11-07 02:08:30,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:08:30,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:08:30,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:08:30,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:08:30,902 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:08:30,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-11-07 02:08:31,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data/fac748350/176bf355caae486daf2af97421cc6ee6/FLAG5e22c1c8f [2021-11-07 02:08:32,266 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:08:32,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i [2021-11-07 02:08:32,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data/fac748350/176bf355caae486daf2af97421cc6ee6/FLAG5e22c1c8f [2021-11-07 02:08:32,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/data/fac748350/176bf355caae486daf2af97421cc6ee6 [2021-11-07 02:08:32,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:08:32,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:08:32,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:08:32,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:08:32,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:08:32,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:32" (1/1) ... [2021-11-07 02:08:32,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d11b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:32, skipping insertion in model container [2021-11-07 02:08:32,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:32" (1/1) ... [2021-11-07 02:08:32,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:08:32,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:08:33,137 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_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-11-07 02:08:33,147 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_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-11-07 02:08:33,183 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:08:33,202 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:08:34,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,361 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,363 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:34,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:08:35,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:08:35,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:08:35,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:08:35,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:08:35,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:08:35,076 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:08:35,077 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:08:35,078 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:08:35,079 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:08:35,349 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:08:35,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,862 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,951 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:35,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:08:36,062 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:08:36,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:08:36,210 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_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-11-07 02:08:36,211 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_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-11-07 02:08:36,213 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:08:36,214 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:08:36,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,301 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,362 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:08:36,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:08:36,365 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:08:36,366 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:08:36,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:08:36,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:08:36,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:08:36,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:08:36,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:08:36,372 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:08:36,409 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:08:36,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,609 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,632 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,633 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:08:36,750 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:08:36,782 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510] [2021-11-07 02:08:36,783 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_68056c2e-3790-432b-9b90-6bd4f20c9245/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570] [2021-11-07 02:08:36,785 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:08:36,787 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:08:36,838 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,839 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,840 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,841 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,842 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,853 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,855 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:36,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:08:36,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:08:36,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:08:36,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:08:36,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:08:36,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:08:36,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:08:36,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:08:36,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:08:36,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:08:36,947 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:08:37,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,097 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,114 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,115 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,139 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,139 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:08:37,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:08:37,739 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:08:37,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37 WrapperNode [2021-11-07 02:08:37,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:08:37,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:08:37,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:08:37,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:08:37,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:37,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:38,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:08:38,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:08:38,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:08:38,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:08:38,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:38,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:38,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:38,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:38,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:38,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:38,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:38,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:08:38,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:08:38,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:08:38,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:08:38,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (1/1) ... [2021-11-07 02:08:38,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:08:38,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:08:38,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:08:38,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:08:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-07 02:08:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:08:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:08:38,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:08:38,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:08:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 02:08:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:08:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 02:08:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:08:38,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:08:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:08:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:08:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:08:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:08:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:08:38,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:08:55,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:08:55,321 INFO L299 CfgBuilder]: Removed 144 assume(true) statements. [2021-11-07 02:08:55,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:55 BoogieIcfgContainer [2021-11-07 02:08:55,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:08:55,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:08:55,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:08:55,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:08:55,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:08:32" (1/3) ... [2021-11-07 02:08:55,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfa49de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:55, skipping insertion in model container [2021-11-07 02:08:55,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:37" (2/3) ... [2021-11-07 02:08:55,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfa49de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:55, skipping insertion in model container [2021-11-07 02:08:55,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:55" (3/3) ... [2021-11-07 02:08:55,339 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clean_up_harness.i [2021-11-07 02:08:55,346 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:08:55,347 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 02:08:55,428 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:08:55,434 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 02:08:55,435 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 02:08:55,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 143 states have (on average 1.4055944055944056) internal successors, (201), 149 states have internal predecessors, (201), 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 02:08:55,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 02:08:55,469 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:08:55,470 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 02:08:55,470 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:08:55,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:08:55,483 INFO L85 PathProgramCache]: Analyzing trace with hash 937862733, now seen corresponding path program 1 times [2021-11-07 02:08:55,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:08:55,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712135688] [2021-11-07 02:08:55,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:08:55,513 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:08:55,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:08:55,517 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:08:55,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:09:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:01,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:09:01,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:01,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:01,469 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 02:09:01,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:01,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712135688] [2021-11-07 02:09:01,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712135688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:01,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:01,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:09:01,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359264847] [2021-11-07 02:09:01,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:09:01,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:01,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:09:01,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:09:01,509 INFO L87 Difference]: Start difference. First operand has 150 states, 143 states have (on average 1.4055944055944056) internal successors, (201), 149 states have internal predecessors, (201), 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 02:09:01,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:01,567 INFO L93 Difference]: Finished difference Result 296 states and 397 transitions. [2021-11-07 02:09:01,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:09:01,569 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 02:09:01,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:01,586 INFO L225 Difference]: With dead ends: 296 [2021-11-07 02:09:01,586 INFO L226 Difference]: Without dead ends: 144 [2021-11-07 02:09:01,591 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 02:09:01,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-07 02:09:01,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-11-07 02:09:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.2391304347826086) internal successors, (171), 143 states have internal predecessors, (171), 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 02:09:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 171 transitions. [2021-11-07 02:09:01,674 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 171 transitions. Word has length 55 [2021-11-07 02:09:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:01,675 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 171 transitions. [2021-11-07 02:09:01,675 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 02:09:01,676 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 171 transitions. [2021-11-07 02:09:01,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 02:09:01,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:01,681 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 02:09:01,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:09:01,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:01,894 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:09:01,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:01,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1984184949, now seen corresponding path program 1 times [2021-11-07 02:09:01,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:01,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795368982] [2021-11-07 02:09:01,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:01,906 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:01,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:01,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:01,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:09:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:06,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:09:06,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:07,415 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 02:09:07,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:07,710 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 02:09:07,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:07,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795368982] [2021-11-07 02:09:07,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795368982] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:07,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:07,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:09:07,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35020435] [2021-11-07 02:09:07,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:09:07,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:07,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:09:07,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:09:07,715 INFO L87 Difference]: Start difference. First operand 144 states and 171 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 02:09:07,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:07,984 INFO L93 Difference]: Finished difference Result 398 states and 474 transitions. [2021-11-07 02:09:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:09:07,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 02:09:07,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:07,989 INFO L225 Difference]: With dead ends: 398 [2021-11-07 02:09:07,990 INFO L226 Difference]: Without dead ends: 276 [2021-11-07 02:09:07,992 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 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 02:09:07,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-07 02:09:08,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 147. [2021-11-07 02:09:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 141 states have (on average 1.2340425531914894) internal successors, (174), 146 states have internal predecessors, (174), 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 02:09:08,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 174 transitions. [2021-11-07 02:09:08,023 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 174 transitions. Word has length 55 [2021-11-07 02:09:08,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:08,023 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 174 transitions. [2021-11-07 02:09:08,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 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 02:09:08,024 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 174 transitions. [2021-11-07 02:09:08,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 02:09:08,030 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:08,030 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] [2021-11-07 02:09:08,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:09:08,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:08,254 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:09:08,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:08,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1945028463, now seen corresponding path program 1 times [2021-11-07 02:09:08,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:08,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676542821] [2021-11-07 02:09:08,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:08,270 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:08,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:08,271 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:08,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:09:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:13,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:09:13,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:13,552 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 02:09:13,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:13,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:13,866 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:13,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676542821] [2021-11-07 02:09:13,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676542821] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:13,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:13,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 02:09:13,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55388257] [2021-11-07 02:09:13,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:09:13,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:13,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:09:13,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:09:13,869 INFO L87 Difference]: Start difference. First operand 147 states and 174 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 02:09:14,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:14,122 INFO L93 Difference]: Finished difference Result 269 states and 319 transitions. [2021-11-07 02:09:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:09:14,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 57 [2021-11-07 02:09:14,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:14,125 INFO L225 Difference]: With dead ends: 269 [2021-11-07 02:09:14,125 INFO L226 Difference]: Without dead ends: 147 [2021-11-07 02:09:14,126 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:09:14,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-11-07 02:09:14,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2021-11-07 02:09:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.2246376811594204) internal successors, (169), 143 states have internal predecessors, (169), 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 02:09:14,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 169 transitions. [2021-11-07 02:09:14,146 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 169 transitions. Word has length 57 [2021-11-07 02:09:14,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:14,146 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 169 transitions. [2021-11-07 02:09:14,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 02:09:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 169 transitions. [2021-11-07 02:09:14,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 02:09:14,155 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:14,156 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] [2021-11-07 02:09:14,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 02:09:14,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:14,370 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:09:14,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:14,371 INFO L85 PathProgramCache]: Analyzing trace with hash 737164156, now seen corresponding path program 1 times [2021-11-07 02:09:14,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:14,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721610213] [2021-11-07 02:09:14,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:14,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:14,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:14,377 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:14,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:09:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:19,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:09:19,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:20,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 02:09:20,818 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 02:09:20,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:21,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 02:09:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:21,529 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:21,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721610213] [2021-11-07 02:09:21,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721610213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:21,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:21,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 02:09:21,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485716888] [2021-11-07 02:09:21,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:09:21,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:21,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:09:21,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:09:21,532 INFO L87 Difference]: Start difference. First operand 144 states and 169 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:28,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:28,210 INFO L93 Difference]: Finished difference Result 259 states and 306 transitions. [2021-11-07 02:09:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:09:28,212 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 02:09:28,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:28,214 INFO L225 Difference]: With dead ends: 259 [2021-11-07 02:09:28,214 INFO L226 Difference]: Without dead ends: 150 [2021-11-07 02:09:28,215 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:09:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-07 02:09:28,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2021-11-07 02:09:28,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 145 states have internal predecessors, (171), 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 02:09:28,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 171 transitions. [2021-11-07 02:09:28,228 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 171 transitions. Word has length 60 [2021-11-07 02:09:28,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:28,228 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 171 transitions. [2021-11-07 02:09:28,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:28,229 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 171 transitions. [2021-11-07 02:09:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 02:09:28,230 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:28,230 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] [2021-11-07 02:09:28,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 02:09:28,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:28,450 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:09:28,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:28,450 INFO L85 PathProgramCache]: Analyzing trace with hash -106841346, now seen corresponding path program 1 times [2021-11-07 02:09:28,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:28,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027940329] [2021-11-07 02:09:28,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:28,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:28,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:28,457 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:28,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:09:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:33,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1637 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:09:33,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:34,219 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 02:09:34,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:34,637 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 02:09:34,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:34,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027940329] [2021-11-07 02:09:34,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027940329] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:34,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:34,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:09:34,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868141845] [2021-11-07 02:09:34,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:09:34,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:34,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:09:34,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:09:34,640 INFO L87 Difference]: Start difference. First operand 146 states and 171 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:34,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:34,860 INFO L93 Difference]: Finished difference Result 258 states and 304 transitions. [2021-11-07 02:09:34,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:09:34,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-07 02:09:34,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:34,863 INFO L225 Difference]: With dead ends: 258 [2021-11-07 02:09:34,863 INFO L226 Difference]: Without dead ends: 144 [2021-11-07 02:09:34,864 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 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 02:09:34,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-07 02:09:34,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-11-07 02:09:34,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.210144927536232) internal successors, (167), 143 states have internal predecessors, (167), 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 02:09:34,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 167 transitions. [2021-11-07 02:09:34,880 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 167 transitions. Word has length 60 [2021-11-07 02:09:34,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:34,881 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 167 transitions. [2021-11-07 02:09:34,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:34,882 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 167 transitions. [2021-11-07 02:09:34,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 02:09:34,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:34,883 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:09:34,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:09:35,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:35,090 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:09:35,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:35,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1176868503, now seen corresponding path program 1 times [2021-11-07 02:09:35,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:35,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263131036] [2021-11-07 02:09:35,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:35,097 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:35,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:35,101 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:35,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:09:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:40,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 02:09:40,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:41,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 02:09:41,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-11-07 02:09:41,550 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 02:09:41,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:41,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-11-07 02:09:42,309 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 02:09:42,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:42,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263131036] [2021-11-07 02:09:42,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263131036] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:42,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:42,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 02:09:42,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692919540] [2021-11-07 02:09:42,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:09:42,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:42,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:09:42,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:09:42,312 INFO L87 Difference]: Start difference. First operand 144 states and 167 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:48,784 INFO L93 Difference]: Finished difference Result 326 states and 381 transitions. [2021-11-07 02:09:48,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:09:48,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-07 02:09:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:48,788 INFO L225 Difference]: With dead ends: 326 [2021-11-07 02:09:48,788 INFO L226 Difference]: Without dead ends: 216 [2021-11-07 02:09:48,789 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:09:48,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-07 02:09:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 144. [2021-11-07 02:09:48,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.2028985507246377) internal successors, (166), 143 states have internal predecessors, (166), 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 02:09:48,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 166 transitions. [2021-11-07 02:09:48,800 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 166 transitions. Word has length 62 [2021-11-07 02:09:48,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:48,801 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 166 transitions. [2021-11-07 02:09:48,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 166 transitions. [2021-11-07 02:09:48,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 02:09:48,803 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:48,803 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] [2021-11-07 02:09:48,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 02:09:49,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:49,018 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:09:49,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:49,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2071616654, now seen corresponding path program 1 times [2021-11-07 02:09:49,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:49,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599768795] [2021-11-07 02:09:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:49,024 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:49,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:49,025 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:49,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:09:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:54,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:09:54,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:55,107 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 02:09:55,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:55,404 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-11-07 02:09:55,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-11-07 02:09:55,438 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-11-07 02:09:55,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2021-11-07 02:09:55,597 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 02:09:55,597 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:55,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599768795] [2021-11-07 02:09:55,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599768795] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:55,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:55,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 02:09:55,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276240503] [2021-11-07 02:09:55,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:09:55,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:55,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:09:55,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:09:55,599 INFO L87 Difference]: Start difference. First operand 144 states and 166 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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 02:10:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:03,459 INFO L93 Difference]: Finished difference Result 197 states and 229 transitions. [2021-11-07 02:10:03,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:10:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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 63 [2021-11-07 02:10:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:03,462 INFO L225 Difference]: With dead ends: 197 [2021-11-07 02:10:03,462 INFO L226 Difference]: Without dead ends: 193 [2021-11-07 02:10:03,463 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:10:03,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-07 02:10:03,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 148. [2021-11-07 02:10:03,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.1958041958041958) internal successors, (171), 147 states have internal predecessors, (171), 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 02:10:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 171 transitions. [2021-11-07 02:10:03,475 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 171 transitions. Word has length 63 [2021-11-07 02:10:03,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:03,476 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 171 transitions. [2021-11-07 02:10:03,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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 02:10:03,476 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 171 transitions. [2021-11-07 02:10:03,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 02:10:03,477 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:03,478 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] [2021-11-07 02:10:03,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:03,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:03,691 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:10:03,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:03,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1562853650, now seen corresponding path program 1 times [2021-11-07 02:10:03,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:03,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464752860] [2021-11-07 02:10:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:03,699 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:03,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:03,700 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:03,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:10:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:09,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:10:09,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:09,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2021-11-07 02:10:09,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2021-11-07 02:10:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:10:09,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:10,120 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 02:10:10,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:10,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464752860] [2021-11-07 02:10:10,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464752860] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:10,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:10,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-07 02:10:10,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861785498] [2021-11-07 02:10:10,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:10:10,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:10,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:10:10,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:10:10,124 INFO L87 Difference]: Start difference. First operand 148 states and 171 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:16,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:16,951 INFO L93 Difference]: Finished difference Result 240 states and 278 transitions. [2021-11-07 02:10:16,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:10:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-07 02:10:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:16,954 INFO L225 Difference]: With dead ends: 240 [2021-11-07 02:10:16,955 INFO L226 Difference]: Without dead ends: 162 [2021-11-07 02:10:16,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:10:16,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-07 02:10:16,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2021-11-07 02:10:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.193103448275862) internal successors, (173), 149 states have internal predecessors, (173), 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 02:10:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 173 transitions. [2021-11-07 02:10:16,967 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 173 transitions. Word has length 68 [2021-11-07 02:10:16,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:16,968 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 173 transitions. [2021-11-07 02:10:16,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:10:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 173 transitions. [2021-11-07 02:10:16,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 02:10:16,969 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:16,970 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] [2021-11-07 02:10:17,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:17,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:17,194 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:10:17,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:17,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1821019088, now seen corresponding path program 1 times [2021-11-07 02:10:17,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:17,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447669118] [2021-11-07 02:10:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:17,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:17,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:17,200 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:17,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:10:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:22,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:10:22,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:23,419 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 02:10:23,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:23,898 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 02:10:23,898 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:23,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447669118] [2021-11-07 02:10:23,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447669118] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:23,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:23,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:10:23,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258663157] [2021-11-07 02:10:23,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:10:23,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:23,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:10:23,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:10:23,901 INFO L87 Difference]: Start difference. First operand 150 states and 173 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 02:10:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:24,269 INFO L93 Difference]: Finished difference Result 231 states and 269 transitions. [2021-11-07 02:10:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:10:24,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2021-11-07 02:10:24,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:24,272 INFO L225 Difference]: With dead ends: 231 [2021-11-07 02:10:24,272 INFO L226 Difference]: Without dead ends: 148 [2021-11-07 02:10:24,273 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:10:24,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-07 02:10:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-07 02:10:24,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.1748251748251748) internal successors, (168), 147 states have internal predecessors, (168), 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 02:10:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 168 transitions. [2021-11-07 02:10:24,283 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 168 transitions. Word has length 68 [2021-11-07 02:10:24,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:24,283 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 168 transitions. [2021-11-07 02:10:24,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 02:10:24,284 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 168 transitions. [2021-11-07 02:10:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 02:10:24,285 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:24,285 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:10:24,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:24,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:24,486 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 02:10:24,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash 401697748, now seen corresponding path program 1 times [2021-11-07 02:10:24,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:24,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164391578] [2021-11-07 02:10:24,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:24,493 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:24,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:24,495 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:24,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68056c2e-3790-432b-9b90-6bd4f20c9245/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:10:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:53,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-07 02:10:53,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:54,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:54,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 109 [2021-11-07 02:10:57,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:10:57,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,219 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:10:57,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:10:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:10:57,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,281 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:10:57,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:10:57,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:10:57,309 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 02:10:57,695 INFO L354 Elim1Store]: treesize reduction 232, result has 27.7 percent of original size [2021-11-07 02:10:57,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 49 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 533 treesize of output 357 [2021-11-07 02:10:59,601 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:10:59,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 507 treesize of output 411 [2021-11-07 02:10:59,966 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 02:10:59,966 INFO L328 TraceCheckSpWp]: Computing backward predicates...