Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2024-input.r047-tajo-171620397500074.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2024-input.qcow2' backing_fmt='qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
...............................
=====================================================================
Generated by BenchKit 2-5568
Executing tool greatspnxred
Input is BridgeAndVehicles-COL-V50P20N20, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r047-tajo-171620397500074
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 480K
-rw-r--r-- 1 mcc users 8.4K Apr 13 00:53 CTLCardinality.txt
-rw-r--r-- 1 mcc users 81K Apr 13 00:53 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.6K Apr 13 00:48 CTLFireability.txt
-rw-r--r-- 1 mcc users 62K Apr 13 00:48 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.9K Apr 22 14:29 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Apr 22 14:29 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Apr 22 14:29 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Apr 22 14:29 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.5K Apr 13 01:32 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 64K Apr 13 01:32 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Apr 13 01:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K Apr 13 01:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Apr 22 14:29 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Apr 22 14:29 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:42 equiv_pt
-rw-r--r-- 1 mcc users 10 May 18 16:42 instance
-rw-r--r-- 1 mcc users 5 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 42K May 18 16:42 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-00
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-01
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-02
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-03
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-04
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-05
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-06
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-07
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-08
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-09
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-10
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-11
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-12
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-13
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-14
FORMULA_NAME BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-15

=== Now, execution of the tool begins

BK_START 1716277154650

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=CTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=BridgeAndVehicles-COL-V50P20N20
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-21 07:39:16] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -timeout, 360, -rebuildPNML]
[2024-05-21 07:39:16] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-21 07:39:16] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2024-05-21 07:39:16] [WARNING] Using fallBack plugin, rng conformance not checked
[2024-05-21 07:39:16] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 544 ms
[2024-05-21 07:39:16] [INFO ] Imported 15 HL places and 11 HL transitions for a total of 138 PT places and 218878.0 transition bindings in 21 ms.
Parsed 16 properties from file /home/mcc/execution/CTLFireability.xml in 14 ms.
[2024-05-21 07:39:16] [INFO ] Built PT skeleton of HLPN with 15 places and 11 transitions 56 arcs in 4 ms.
[2024-05-21 07:39:16] [INFO ] Skeletonized 5 HLPN properties in 2 ms. Removed 11 properties that had guard overlaps.
Computed a total of 12 stabilizing places and 6 stable transitions
Graph (complete) has 51 edges and 15 vertex of which 13 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.4 ms
All 16 properties of the HLPN use transition enablings in a way that makes the skeleton too coarse.
Arc [1:1*[(MOD (ADD $cA 1) 51)]] contains successor/predecessor on variables of sort voitureA
Arc [6:1*[(MOD (ADD (MOD (MINUS $cB 1) 51) 51) 51)]] contains successor/predecessor on variables of sort voitureB
Arc [13:1*[(MOD (ADD $cpt 1) 21)]] contains successor/predecessor on variables of sort compteur
Arc [14:1*[(MOD (ADD $s 1) 2)]] contains successor/predecessor on variables of sort sens
[2024-05-21 07:39:16] [INFO ] Unfolded HLPN to a Petri net with 138 places and 2348 transitions 18090 arcs in 137 ms.
[2024-05-21 07:39:16] [INFO ] Unfolded 16 HLPN properties in 5 ms.
Support contains 136 out of 138 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 138/138 places, 2348/2348 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 136 transition count 2348
Applied a total of 2 rules in 74 ms. Remains 136 /138 variables (removed 2) and now considering 2348/2348 (removed 0) transitions.
Running 2345 sub problems to find dead transitions.
[2024-05-21 07:39:17] [INFO ] Flow matrix only has 290 transitions (discarded 2058 similar events)
// Phase 1: matrix 290 rows 136 cols
[2024-05-21 07:39:17] [INFO ] Computed 5 invariants in 11 ms
[2024-05-21 07:39:17] [INFO ] State equation strengthened by 42 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/136 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2345 unsolved
[2024-05-21 07:39:52] [INFO ] Deduced a trap composed of 5 places in 488 ms of which 38 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 136/426 variables, and 6 constraints, problems are : Problem set: 0 solved, 2345 unsolved in 20141 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 0/136 constraints, ReadFeed: 0/42 constraints, PredecessorRefiner: 2345/2345 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2345 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/136 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2345 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/136 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 2345 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 136/426 variables, and 6 constraints, problems are : Problem set: 0 solved, 2345 unsolved in 20033 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 0/136 constraints, ReadFeed: 0/42 constraints, PredecessorRefiner: 0/2345 constraints, Known Traps: 1/1 constraints]
After SMT, in 59187ms problems are : Problem set: 0 solved, 2345 unsolved
Search for dead transitions found 0 dead transitions in 59292ms
[2024-05-21 07:40:16] [INFO ] Flow matrix only has 290 transitions (discarded 2058 similar events)
[2024-05-21 07:40:16] [INFO ] Invariant cache hit.
[2024-05-21 07:40:16] [INFO ] Implicit Places using invariants in 65 ms returned []
[2024-05-21 07:40:16] [INFO ] Flow matrix only has 290 transitions (discarded 2058 similar events)
[2024-05-21 07:40:16] [INFO ] Invariant cache hit.
[2024-05-21 07:40:17] [INFO ] State equation strengthened by 42 read => feed constraints.
[2024-05-21 07:40:17] [INFO ] Implicit Places using invariants and state equation in 207 ms returned []
Implicit Place search using SMT with State Equation took 277 ms to find 0 implicit places.
Running 2345 sub problems to find dead transitions.
[2024-05-21 07:40:17] [INFO ] Flow matrix only has 290 transitions (discarded 2058 similar events)
[2024-05-21 07:40:17] [INFO ] Invariant cache hit.
[2024-05-21 07:40:17] [INFO ] State equation strengthened by 42 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/136 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2345 unsolved
[2024-05-21 07:40:45] [INFO ] Deduced a trap composed of 5 places in 351 ms of which 2 ms to minimize.
[2024-05-21 07:41:01] [INFO ] Deduced a trap composed of 25 places in 156 ms of which 1 ms to minimize.
Problem TDEAD1248 is UNSAT
Problem TDEAD1249 is UNSAT
Problem TDEAD1250 is UNSAT
Problem TDEAD1251 is UNSAT
Problem TDEAD1252 is UNSAT
Problem TDEAD1253 is UNSAT
Problem TDEAD1254 is UNSAT
Problem TDEAD1255 is UNSAT
Problem TDEAD1256 is UNSAT
Problem TDEAD1257 is UNSAT
Problem TDEAD1258 is UNSAT
Problem TDEAD1259 is UNSAT
Problem TDEAD1260 is UNSAT
Problem TDEAD1261 is UNSAT
Problem TDEAD1262 is UNSAT
Problem TDEAD1263 is UNSAT
Problem TDEAD1264 is UNSAT
Problem TDEAD1265 is UNSAT
Problem TDEAD1266 is UNSAT
Problem TDEAD1267 is UNSAT
Problem TDEAD1268 is UNSAT
Problem TDEAD1269 is UNSAT
Problem TDEAD1270 is UNSAT
Problem TDEAD1271 is UNSAT
Problem TDEAD1272 is UNSAT
Problem TDEAD1273 is UNSAT
Problem TDEAD1274 is UNSAT
Problem TDEAD1275 is UNSAT
Problem TDEAD1276 is UNSAT
Problem TDEAD1277 is UNSAT
Problem TDEAD1278 is UNSAT
Problem TDEAD1279 is UNSAT
Problem TDEAD1280 is UNSAT
Problem TDEAD1281 is UNSAT
Problem TDEAD1282 is UNSAT
Problem TDEAD1283 is UNSAT
Problem TDEAD1284 is UNSAT
Problem TDEAD1285 is UNSAT
Problem TDEAD1286 is UNSAT
Problem TDEAD1287 is UNSAT
Problem TDEAD1288 is UNSAT
Problem TDEAD1289 is UNSAT
Problem TDEAD1290 is UNSAT
Problem TDEAD1291 is UNSAT
Problem TDEAD1292 is UNSAT
Problem TDEAD1293 is UNSAT
Problem TDEAD1294 is UNSAT
Problem TDEAD1295 is UNSAT
Problem TDEAD1296 is UNSAT
Problem TDEAD1297 is UNSAT
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 136/426 variables, and 7 constraints, problems are : Problem set: 50 solved, 2295 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 0/136 constraints, ReadFeed: 0/42 constraints, PredecessorRefiner: 2345/2345 constraints, Known Traps: 2/2 constraints]
Escalating to Integer solving :Problem set: 50 solved, 2295 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/136 variables, 5/5 constraints. Problems are: Problem set: 50 solved, 2295 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/136 variables, 2/7 constraints. Problems are: Problem set: 50 solved, 2295 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 136/426 variables, and 7 constraints, problems are : Problem set: 50 solved, 2295 unsolved in 30031 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 0/136 constraints, ReadFeed: 0/42 constraints, PredecessorRefiner: 0/2345 constraints, Known Traps: 2/2 constraints]
After SMT, in 78959ms problems are : Problem set: 50 solved, 2295 unsolved
Search for dead transitions found 50 dead transitions in 79036ms
Found 50 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 50 transitions
Dead transitions reduction (with SMT) removed 50 transitions
Starting structural reductions in LTL mode, iteration 1 : 136/138 places, 2298/2348 transitions.
Applied a total of 0 rules in 35 ms. Remains 136 /136 variables (removed 0) and now considering 2298/2298 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 138818 ms. Remains : 136/138 places, 2298/2348 transitions.
Support contains 136 out of 136 places after structural reductions.
[2024-05-21 07:41:37] [INFO ] Flatten gal took : 605 ms
[2024-05-21 07:41:39] [INFO ] Flatten gal took : 384 ms
[2024-05-21 07:41:41] [INFO ] Input system was already deterministic with 2298 transitions.
Reduction of identical properties reduced properties to check from 35 to 33
RANDOM walk for 40000 steps (92 resets) in 6160 ms. (6 steps per ms) remains 3/33 properties
BEST_FIRST walk for 40002 steps (28 resets) in 801 ms. (49 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (32 resets) in 502 ms. (79 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (44 resets) in 502 ms. (79 steps per ms) remains 3/3 properties
[2024-05-21 07:41:44] [INFO ] Flow matrix only has 289 transitions (discarded 2009 similar events)
// Phase 1: matrix 289 rows 136 cols
[2024-05-21 07:41:44] [INFO ] Computed 5 invariants in 7 ms
[2024-05-21 07:41:44] [INFO ] State equation strengthened by 41 read => feed constraints.
Problem AtomicPropp28 is UNSAT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/129 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/129 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 2 unsolved
Problem AtomicPropp12 is UNSAT
At refinement iteration 2 (OVERLAPS) 5/134 variables, 4/5 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/134 variables, 0/5 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 289/423 variables, 134/139 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/423 variables, 41/180 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/423 variables, 0/180 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 2/425 variables, 2/182 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/425 variables, 0/182 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 0/425 variables, 0/182 constraints. Problems are: Problem set: 2 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 425/425 variables, and 182 constraints, problems are : Problem set: 2 solved, 1 unsolved in 257 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 136/136 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 0/0 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/61 variables, 3/3 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/61 variables, 0/3 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 238/299 variables, 61/64 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/299 variables, 21/85 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/299 variables, 0/85 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 125/424 variables, 74/159 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/424 variables, 2/161 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/424 variables, 20/181 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/424 variables, 1/182 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/424 variables, 0/182 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 1/425 variables, 1/183 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/425 variables, 0/183 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/425 variables, 0/183 constraints. Problems are: Problem set: 2 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 425/425 variables, and 183 constraints, problems are : Problem set: 2 solved, 1 unsolved in 841 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 136/136 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 1/3 constraints, Known Traps: 0/0 constraints]
After SMT, in 1285ms problems are : Problem set: 2 solved, 1 unsolved
Parikh walk visited 0 properties in 157 ms.
Support contains 54 out of 136 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 136/136 places, 2298/2298 transitions.
Applied a total of 0 rules in 366 ms. Remains 136 /136 variables (removed 0) and now considering 2298/2298 (removed 0) transitions.
Running 2295 sub problems to find dead transitions.
[2024-05-21 07:41:46] [INFO ] Flow matrix only has 289 transitions (discarded 2009 similar events)
[2024-05-21 07:41:46] [INFO ] Invariant cache hit.
[2024-05-21 07:41:46] [INFO ] State equation strengthened by 41 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/136 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2295 unsolved
[2024-05-21 07:42:13] [INFO ] Deduced a trap composed of 5 places in 261 ms of which 1 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 136/425 variables, and 6 constraints, problems are : Problem set: 0 solved, 2295 unsolved in 20033 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 0/136 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 2295/2295 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2295 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/136 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2295 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/136 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 2295 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 136/425 variables, and 6 constraints, problems are : Problem set: 0 solved, 2295 unsolved in 20028 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 0/136 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 0/2295 constraints, Known Traps: 1/1 constraints]
After SMT, in 58374ms problems are : Problem set: 0 solved, 2295 unsolved
Search for dead transitions found 0 dead transitions in 58397ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 58783 ms. Remains : 136/136 places, 2298/2298 transitions.
RANDOM walk for 40000 steps (92 resets) in 686 ms. (58 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (29 resets) in 490 ms. (81 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 264313 steps, run timeout after 3001 ms. (steps per millisecond=88 ) properties seen :0 out of 1
Probabilistic random walk after 264313 steps, saw 70785 distinct states, run finished after 3007 ms. (steps per millisecond=87 ) properties seen :0
[2024-05-21 07:42:48] [INFO ] Flow matrix only has 289 transitions (discarded 2009 similar events)
[2024-05-21 07:42:48] [INFO ] Invariant cache hit.
[2024-05-21 07:42:48] [INFO ] State equation strengthened by 41 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/61 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/61 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 238/299 variables, 61/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/299 variables, 21/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/299 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 125/424 variables, 74/159 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/424 variables, 2/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/424 variables, 20/181 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/424 variables, 0/181 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 1/425 variables, 1/182 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/425 variables, 0/182 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/425 variables, 0/182 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 425/425 variables, and 182 constraints, problems are : Problem set: 0 solved, 1 unsolved in 246 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 136/136 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/61 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/61 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 238/299 variables, 61/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/299 variables, 21/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/299 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 125/424 variables, 74/159 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/424 variables, 2/161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/424 variables, 20/181 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/424 variables, 1/182 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/424 variables, 0/182 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 1/425 variables, 1/183 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/425 variables, 0/183 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/425 variables, 0/183 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 425/425 variables, and 183 constraints, problems are : Problem set: 0 solved, 1 unsolved in 984 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 136/136 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 1361ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 127 ms.
Support contains 54 out of 136 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 136/136 places, 2298/2298 transitions.
Applied a total of 0 rules in 271 ms. Remains 136 /136 variables (removed 0) and now considering 2298/2298 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 271 ms. Remains : 136/136 places, 2298/2298 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 136/136 places, 2298/2298 transitions.
Applied a total of 0 rules in 219 ms. Remains 136 /136 variables (removed 0) and now considering 2298/2298 (removed 0) transitions.
[2024-05-21 07:42:50] [INFO ] Flow matrix only has 289 transitions (discarded 2009 similar events)
[2024-05-21 07:42:50] [INFO ] Invariant cache hit.
[2024-05-21 07:42:50] [INFO ] Implicit Places using invariants in 329 ms returned []
[2024-05-21 07:42:50] [INFO ] Flow matrix only has 289 transitions (discarded 2009 similar events)
[2024-05-21 07:42:50] [INFO ] Invariant cache hit.
[2024-05-21 07:42:50] [INFO ] State equation strengthened by 41 read => feed constraints.
[2024-05-21 07:42:52] [INFO ] Implicit Places using invariants and state equation in 1203 ms returned [53]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 1573 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 135/136 places, 2298/2298 transitions.
Applied a total of 0 rules in 229 ms. Remains 135 /135 variables (removed 0) and now considering 2298/2298 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 2022 ms. Remains : 135/136 places, 2298/2298 transitions.
RANDOM walk for 40000 steps (92 resets) in 798 ms. (50 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (29 resets) in 534 ms. (74 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 258380 steps, run timeout after 3001 ms. (steps per millisecond=86 ) properties seen :0 out of 1
Probabilistic random walk after 258380 steps, saw 69234 distinct states, run finished after 3001 ms. (steps per millisecond=86 ) properties seen :0
[2024-05-21 07:42:55] [INFO ] Flow matrix only has 289 transitions (discarded 2009 similar events)
// Phase 1: matrix 289 rows 135 cols
[2024-05-21 07:42:55] [INFO ] Computed 5 invariants in 3 ms
[2024-05-21 07:42:55] [INFO ] State equation strengthened by 41 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/61 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/61 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 238/299 variables, 61/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/299 variables, 21/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/299 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 124/423 variables, 73/158 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/423 variables, 2/160 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/423 variables, 20/180 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/423 variables, 0/180 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 1/424 variables, 1/181 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/424 variables, 0/181 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/424 variables, 0/181 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 424/424 variables, and 181 constraints, problems are : Problem set: 0 solved, 1 unsolved in 317 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 135/135 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/54 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/61 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/61 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 238/299 variables, 61/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/299 variables, 21/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/299 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 124/423 variables, 73/158 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/423 variables, 2/160 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/423 variables, 20/180 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/423 variables, 1/181 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/423 variables, 0/181 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 1/424 variables, 1/182 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/424 variables, 0/182 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/424 variables, 0/182 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 424/424 variables, and 182 constraints, problems are : Problem set: 0 solved, 1 unsolved in 904 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 135/135 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 1308ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 99 ms.
Support contains 54 out of 135 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 135/135 places, 2298/2298 transitions.
Applied a total of 0 rules in 253 ms. Remains 135 /135 variables (removed 0) and now considering 2298/2298 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 268 ms. Remains : 135/135 places, 2298/2298 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 135/135 places, 2298/2298 transitions.
Applied a total of 0 rules in 211 ms. Remains 135 /135 variables (removed 0) and now considering 2298/2298 (removed 0) transitions.
[2024-05-21 07:42:57] [INFO ] Flow matrix only has 289 transitions (discarded 2009 similar events)
[2024-05-21 07:42:57] [INFO ] Invariant cache hit.
[2024-05-21 07:42:57] [INFO ] Implicit Places using invariants in 375 ms returned []
[2024-05-21 07:42:57] [INFO ] Flow matrix only has 289 transitions (discarded 2009 similar events)
[2024-05-21 07:42:57] [INFO ] Invariant cache hit.
[2024-05-21 07:42:58] [INFO ] State equation strengthened by 41 read => feed constraints.
[2024-05-21 07:42:58] [INFO ] Implicit Places using invariants and state equation in 888 ms returned []
Implicit Place search using SMT with State Equation took 1266 ms to find 0 implicit places.
[2024-05-21 07:42:58] [INFO ] Redundant transitions in 113 ms returned []
Running 2295 sub problems to find dead transitions.
[2024-05-21 07:42:58] [INFO ] Flow matrix only has 289 transitions (discarded 2009 similar events)
[2024-05-21 07:42:58] [INFO ] Invariant cache hit.
[2024-05-21 07:42:58] [INFO ] State equation strengthened by 41 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/135 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2295 unsolved
[2024-05-21 07:43:26] [INFO ] Deduced a trap composed of 5 places in 247 ms of which 5 ms to minimize.
----------------------------------------------------------------------
GreatSPN-meddly tool, MCC 2023
----------------------------------------------------------------------

Running BridgeAndVehicles-COL-V50P20N20

IS_COLORED=1
IS_NUPN=

LOADING model.pnml ...
MODEL CLASS: SYMMETRIC NET
PLACES: 15
TRANSITIONS: 11
CONSTANTS: 0
TEMPLATE VARS: 0
COLOR CLASSES: 4
COLOR VARS: 4
ARCS: 56
LOADING TIME: 0.165

UNFOLDING COLORS...
MODEL CLASS: P/T NET
PLACES: 138
TRANSITIONS: 2348
CONSTANTS: 0
TEMPLATE VARS: 0
ARCS: 18090
UNFOLDING TIME: 4.644

SAVING AS /home/mcc/execution/model.(net/def) ...
exportGspn useExt=true
SAVING TIME: 0.11
SAVING NAME MAP FILE /home/mcc/execution/model.id2name ...
SAVING UNFOLDING MAP FILE /home/mcc/execution/model.unfmap ...
TOTAL TIME: 5.165
OK.
----------------------------------------------------------------------
GreatSPN/Meddly.
Copyright (C) 1987-2022, University of Torino, Italy.
website: https://github.com/greatspn/SOURCES

Based on MEDDLY version 0.16.0
Copyright (C) 2009, Iowa State University Research Foundation, Inc.
website: http://meddly.sourceforge.net

Process ID: 679
MODEL NAME: /home/mcc/execution/model
138 places, 2348 transitions.

Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Building monolithic NSF...
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-00 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-01 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-02 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-03 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-04 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-05 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-06 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-07 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-08 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-09 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-10 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-11 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-12 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-13 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-14 CANNOT_COMPUTE
FORMULA BridgeAndVehicles-COL-V50P20N20-CTLFireability-2024-15 CANNOT_COMPUTE
Ok.
EXITCODE: 0
----------------------------------------------------------------------

BK_STOP 1716279709385

--------------------
content from stderr:

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination CTLFireability -timeout 360 -rebuildPNML
MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

MEDDLY ERROR: Insufficient memory

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="BridgeAndVehicles-COL-V50P20N20"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="greatspnxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5568"
echo " Executing tool greatspnxred"
echo " Input is BridgeAndVehicles-COL-V50P20N20, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r047-tajo-171620397500074"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BridgeAndVehicles-COL-V50P20N20.tgz
mv BridgeAndVehicles-COL-V50P20N20 execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' CTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;