Execution Chart

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Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2024-input.r048-tajo-171620399200273.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 itstools
Input is BridgeAndVehicles-PT-V80P20N10, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r048-tajo-171620399200273
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 8.3M
-rw-r--r-- 1 mcc users 23K Apr 13 01:05 CTLCardinality.txt
-rw-r--r-- 1 mcc users 123K Apr 13 01:05 CTLCardinality.xml
-rw-r--r-- 1 mcc users 330K Apr 13 00:59 CTLFireability.txt
-rw-r--r-- 1 mcc users 1.3M Apr 13 00:59 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 13K Apr 22 14:30 LTLCardinality.txt
-rw-r--r-- 1 mcc users 47K Apr 22 14:30 LTLCardinality.xml
-rw-r--r-- 1 mcc users 115K Apr 22 14:30 LTLFireability.txt
-rw-r--r-- 1 mcc users 334K Apr 22 14:30 LTLFireability.xml
-rw-r--r-- 1 mcc users 18K Apr 13 01:57 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 93K Apr 13 01:57 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 885K Apr 13 01:52 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 3.4M Apr 13 01:52 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 3.3K Apr 22 14:30 UpperBounds.txt
-rw-r--r-- 1 mcc users 7.0K Apr 22 14:30 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 10 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 1.7M 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-PT-V80P20N10-CTLCardinality-2024-00
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-01
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-02
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-03
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-04
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-05
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-06
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-07
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-08
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-09
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-10
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-11
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-12
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-13
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-14
FORMULA_NAME BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1716330329546

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=BridgeAndVehicles-PT-V80P20N10
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
CTLCardinality PT
Running Version 202405141337
[2024-05-21 22:25:30] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-21 22:25:30] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-21 22:25:31] [INFO ] Load time of PNML (sax parser for PT used): 148 ms
[2024-05-21 22:25:31] [INFO ] Transformed 188 places.
[2024-05-21 22:25:31] [INFO ] Transformed 2108 transitions.
[2024-05-21 22:25:31] [INFO ] Parsed PT model containing 188 places and 2108 transitions and 15950 arcs in 262 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 21 ms.
FORMULA BridgeAndVehicles-PT-V80P20N10-CTLCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 76 out of 188 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 188/188 places, 2108/2108 transitions.
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 187 transition count 2108
Applied a total of 1 rules in 59 ms. Remains 187 /188 variables (removed 1) and now considering 2108/2108 (removed 0) transitions.
Running 2105 sub problems to find dead transitions.
[2024-05-21 22:25:31] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
// Phase 1: matrix 370 rows 187 cols
[2024-05-21 22:25:31] [INFO ] Computed 6 invariants in 27 ms
[2024-05-21 22:25:31] [INFO ] State equation strengthened by 22 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/186 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2105 unsolved
[2024-05-21 22:25:58] [INFO ] Deduced a trap composed of 5 places in 268 ms of which 9 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 186/557 variables, and 6 constraints, problems are : Problem set: 0 solved, 2105 unsolved in 20114 ms.
Refiners :[Positive P Invariants (semi-flows): 5/6 constraints, State Equation: 0/187 constraints, ReadFeed: 0/22 constraints, PredecessorRefiner: 2105/2105 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2105 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/186 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2105 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/186 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 2105 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 186/557 variables, and 6 constraints, problems are : Problem set: 0 solved, 2105 unsolved in 20042 ms.
Refiners :[Positive P Invariants (semi-flows): 5/6 constraints, State Equation: 0/187 constraints, ReadFeed: 0/22 constraints, PredecessorRefiner: 0/2105 constraints, Known Traps: 1/1 constraints]
After SMT, in 55396ms problems are : Problem set: 0 solved, 2105 unsolved
Search for dead transitions found 0 dead transitions in 55452ms
[2024-05-21 22:26:26] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
[2024-05-21 22:26:26] [INFO ] Invariant cache hit.
[2024-05-21 22:26:27] [INFO ] Implicit Places using invariants in 239 ms returned []
[2024-05-21 22:26:27] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
[2024-05-21 22:26:27] [INFO ] Invariant cache hit.
[2024-05-21 22:26:27] [INFO ] State equation strengthened by 22 read => feed constraints.
[2024-05-21 22:26:28] [INFO ] Implicit Places using invariants and state equation in 1221 ms returned [169]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 1482 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 186/188 places, 2108/2108 transitions.
Applied a total of 0 rules in 36 ms. Remains 186 /186 variables (removed 0) and now considering 2108/2108 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 57087 ms. Remains : 186/188 places, 2108/2108 transitions.
Support contains 76 out of 186 places after structural reductions.
[2024-05-21 22:26:28] [INFO ] Flatten gal took : 198 ms
[2024-05-21 22:26:28] [INFO ] Flatten gal took : 139 ms
[2024-05-21 22:26:29] [INFO ] Input system was already deterministic with 2108 transitions.
RANDOM walk for 40000 steps (56 resets) in 2921 ms. (13 steps per ms) remains 41/68 properties
BEST_FIRST walk for 4004 steps (8 resets) in 29 ms. (133 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 20 ms. (190 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 20 ms. (190 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 29 ms. (133 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 29 ms. (133 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 21 ms. (182 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 26 ms. (148 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 29 ms. (133 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 20 ms. (190 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 33 ms. (117 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4002 steps (8 resets) in 20 ms. (190 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 33 ms. (117 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4002 steps (8 resets) in 29 ms. (133 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 35 ms. (111 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4002 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4002 steps (8 resets) in 20 ms. (190 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 24 ms. (160 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 26 ms. (148 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 42 ms. (93 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4002 steps (8 resets) in 18 ms. (210 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 29 ms. (133 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4002 steps (8 resets) in 27 ms. (142 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4002 steps (8 resets) in 28 ms. (138 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4002 steps (8 resets) in 23 ms. (166 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 18 ms. (210 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 15 ms. (250 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 17 ms. (222 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 41/41 properties
[2024-05-21 22:26:30] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
// Phase 1: matrix 370 rows 186 cols
[2024-05-21 22:26:30] [INFO ] Computed 6 invariants in 6 ms
[2024-05-21 22:26:30] [INFO ] State equation strengthened by 22 read => feed constraints.
Problem AtomicPropp2 is UNSAT
Problem AtomicPropp3 is UNSAT
Problem AtomicPropp4 is UNSAT
Problem AtomicPropp5 is UNSAT
Problem AtomicPropp6 is UNSAT
Problem AtomicPropp12 is UNSAT
Problem AtomicPropp20 is UNSAT
Problem AtomicPropp21 is UNSAT
Problem AtomicPropp29 is UNSAT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/49 variables, 2/2 constraints. Problems are: Problem set: 9 solved, 32 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/49 variables, 0/2 constraints. Problems are: Problem set: 9 solved, 32 unsolved
Problem AtomicPropp0 is UNSAT
Problem AtomicPropp23 is UNSAT
Problem AtomicPropp25 is UNSAT
Problem AtomicPropp26 is UNSAT
Problem AtomicPropp27 is UNSAT
Problem AtomicPropp28 is UNSAT
Problem AtomicPropp30 is UNSAT
Problem AtomicPropp31 is UNSAT
Problem AtomicPropp32 is UNSAT
Problem AtomicPropp36 is UNSAT
Problem AtomicPropp37 is UNSAT
Problem AtomicPropp38 is UNSAT
Problem AtomicPropp39 is UNSAT
Problem AtomicPropp44 is UNSAT
Problem AtomicPropp45 is UNSAT
Problem AtomicPropp47 is UNSAT
Problem AtomicPropp51 is UNSAT
Problem AtomicPropp52 is UNSAT
Problem AtomicPropp53 is UNSAT
Problem AtomicPropp55 is UNSAT
Problem AtomicPropp56 is UNSAT
Problem AtomicPropp57 is UNSAT
Problem AtomicPropp59 is UNSAT
Problem AtomicPropp61 is UNSAT
Problem AtomicPropp62 is UNSAT
Problem AtomicPropp64 is UNSAT
Problem AtomicPropp65 is UNSAT
Problem AtomicPropp66 is UNSAT
At refinement iteration 2 (OVERLAPS) 125/174 variables, 3/5 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/174 variables, 0/5 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 4 (OVERLAPS) 370/544 variables, 174/179 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/544 variables, 22/201 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/544 variables, 0/201 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 7 (OVERLAPS) 12/556 variables, 12/213 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/556 variables, 1/214 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/556 variables, 0/214 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 10 (OVERLAPS) 0/556 variables, 0/214 constraints. Problems are: Problem set: 37 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 556/556 variables, and 214 constraints, problems are : Problem set: 37 solved, 4 unsolved in 445 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 186/186 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 41/41 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 37 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 1/1 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/7 variables, 0/1 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 2 (OVERLAPS) 161/168 variables, 3/4 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/168 variables, 0/4 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 4 (OVERLAPS) 324/492 variables, 168/172 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/492 variables, 0/172 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 51/543 variables, 5/177 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/543 variables, 22/199 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/543 variables, 4/203 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/543 variables, 0/203 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 10 (OVERLAPS) 2/545 variables, 1/204 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/545 variables, 2/206 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/545 variables, 0/206 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 11/556 variables, 11/217 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/556 variables, 1/218 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/556 variables, 0/218 constraints. Problems are: Problem set: 37 solved, 4 unsolved
At refinement iteration 16 (OVERLAPS) 0/556 variables, 0/218 constraints. Problems are: Problem set: 37 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 556/556 variables, and 218 constraints, problems are : Problem set: 37 solved, 4 unsolved in 4760 ms.
Refiners :[Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 186/186 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 4/41 constraints, Known Traps: 0/0 constraints]
After SMT, in 5311ms problems are : Problem set: 37 solved, 4 unsolved
Parikh walk visited 1 properties in 2132 ms.
Support contains 4 out of 186 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 186/186 places, 2108/2108 transitions.
Graph (complete) has 1717 edges and 186 vertex of which 185 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.8 ms
Discarding 1 places :
Also discarding 0 output transitions
Applied a total of 1 rules in 341 ms. Remains 185 /186 variables (removed 1) and now considering 2108/2108 (removed 0) transitions.
Running 2105 sub problems to find dead transitions.
[2024-05-21 22:26:38] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
// Phase 1: matrix 370 rows 185 cols
[2024-05-21 22:26:38] [INFO ] Computed 5 invariants in 11 ms
[2024-05-21 22:26:38] [INFO ] State equation strengthened by 22 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/185 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2105 unsolved
[2024-05-21 22:27:02] [INFO ] Deduced a trap composed of 5 places in 248 ms of which 2 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 185/555 variables, and 6 constraints, problems are : Problem set: 0 solved, 2105 unsolved in 20040 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 0/185 constraints, ReadFeed: 0/22 constraints, PredecessorRefiner: 2105/2105 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2105 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/185 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 2105 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/185 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 2105 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 185/555 variables, and 6 constraints, problems are : Problem set: 0 solved, 2105 unsolved in 20045 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 0/185 constraints, ReadFeed: 0/22 constraints, PredecessorRefiner: 0/2105 constraints, Known Traps: 1/1 constraints]
After SMT, in 54376ms problems are : Problem set: 0 solved, 2105 unsolved
Search for dead transitions found 0 dead transitions in 54412ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 54763 ms. Remains : 185/186 places, 2108/2108 transitions.
RANDOM walk for 40000 steps (56 resets) in 592 ms. (67 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (20 resets) in 212 ms. (187 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (20 resets) in 236 ms. (168 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (20 resets) in 185 ms. (215 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 198855 steps, run timeout after 3001 ms. (steps per millisecond=66 ) properties seen :0 out of 3
Probabilistic random walk after 198855 steps, saw 55400 distinct states, run finished after 3004 ms. (steps per millisecond=66 ) properties seen :0
[2024-05-21 22:27:36] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
[2024-05-21 22:27:36] [INFO ] Invariant cache hit.
[2024-05-21 22:27:36] [INFO ] State equation strengthened by 22 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 80/84 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 243/327 variables, 84/86 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/327 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 214/541 variables, 87/173 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/541 variables, 1/174 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/541 variables, 22/196 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/541 variables, 0/196 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 2/543 variables, 1/197 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/543 variables, 2/199 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/543 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (OVERLAPS) 12/555 variables, 12/211 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/555 variables, 1/212 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/555 variables, 0/212 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 16 (OVERLAPS) 0/555 variables, 0/212 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 555/555 variables, and 212 constraints, problems are : Problem set: 0 solved, 3 unsolved in 298 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 185/185 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 80/84 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 243/327 variables, 84/86 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/327 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 214/541 variables, 87/173 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/541 variables, 1/174 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/541 variables, 22/196 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/541 variables, 3/199 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/541 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (OVERLAPS) 2/543 variables, 1/200 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/543 variables, 2/202 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/543 variables, 0/202 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 14 (OVERLAPS) 12/555 variables, 12/214 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/555 variables, 1/215 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/555 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 17 (OVERLAPS) 0/555 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 555/555 variables, and 215 constraints, problems are : Problem set: 0 solved, 3 unsolved in 1685 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 185/185 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
After SMT, in 2032ms problems are : Problem set: 0 solved, 3 unsolved
Fused 3 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 566 ms.
Support contains 4 out of 185 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 185/185 places, 2108/2108 transitions.
Applied a total of 0 rules in 228 ms. Remains 185 /185 variables (removed 0) and now considering 2108/2108 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 228 ms. Remains : 185/185 places, 2108/2108 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 185/185 places, 2108/2108 transitions.
Applied a total of 0 rules in 203 ms. Remains 185 /185 variables (removed 0) and now considering 2108/2108 (removed 0) transitions.
[2024-05-21 22:27:39] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
[2024-05-21 22:27:39] [INFO ] Invariant cache hit.
[2024-05-21 22:27:39] [INFO ] Implicit Places using invariants in 452 ms returned []
[2024-05-21 22:27:39] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
[2024-05-21 22:27:39] [INFO ] Invariant cache hit.
[2024-05-21 22:27:39] [INFO ] State equation strengthened by 22 read => feed constraints.
[2024-05-21 22:27:40] [INFO ] Implicit Places using invariants and state equation in 1087 ms returned [82]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 1551 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 184/185 places, 2108/2108 transitions.
Applied a total of 0 rules in 153 ms. Remains 184 /184 variables (removed 0) and now considering 2108/2108 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 1907 ms. Remains : 184/185 places, 2108/2108 transitions.
RANDOM walk for 40000 steps (56 resets) in 448 ms. (89 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (20 resets) in 115 ms. (344 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40002 steps (20 resets) in 119 ms. (333 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40001 steps (20 resets) in 117 ms. (338 steps per ms) remains 3/3 properties
Interrupted probabilistic random walk after 249816 steps, run timeout after 3001 ms. (steps per millisecond=83 ) properties seen :0 out of 3
Probabilistic random walk after 249816 steps, saw 68865 distinct states, run finished after 3001 ms. (steps per millisecond=83 ) properties seen :0
[2024-05-21 22:27:44] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
// Phase 1: matrix 370 rows 184 cols
[2024-05-21 22:27:44] [INFO ] Computed 5 invariants in 3 ms
[2024-05-21 22:27:44] [INFO ] State equation strengthened by 22 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 80/84 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 243/327 variables, 84/86 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/327 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 213/540 variables, 86/172 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/540 variables, 1/173 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/540 variables, 22/195 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/540 variables, 0/195 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 2/542 variables, 1/196 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/542 variables, 2/198 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/542 variables, 0/198 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (OVERLAPS) 12/554 variables, 12/210 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/554 variables, 1/211 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/554 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 16 (OVERLAPS) 0/554 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 554/554 variables, and 211 constraints, problems are : Problem set: 0 solved, 3 unsolved in 297 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 184/184 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/4 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 80/84 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/84 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 243/327 variables, 84/86 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/327 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 213/540 variables, 86/172 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/540 variables, 1/173 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/540 variables, 22/195 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/540 variables, 3/198 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/540 variables, 0/198 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 11 (OVERLAPS) 2/542 variables, 1/199 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/542 variables, 2/201 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/542 variables, 0/201 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 14 (OVERLAPS) 12/554 variables, 12/213 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/554 variables, 1/214 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/554 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 17 (OVERLAPS) 0/554 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 554/554 variables, and 214 constraints, problems are : Problem set: 0 solved, 3 unsolved in 1962 ms.
Refiners :[Positive P Invariants (semi-flows): 5/5 constraints, State Equation: 184/184 constraints, ReadFeed: 22/22 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
After SMT, in 2295ms problems are : Problem set: 0 solved, 3 unsolved
Fused 3 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 402 ms.
Support contains 4 out of 184 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 184/184 places, 2108/2108 transitions.
Applied a total of 0 rules in 162 ms. Remains 184 /184 variables (removed 0) and now considering 2108/2108 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 162 ms. Remains : 184/184 places, 2108/2108 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 184/184 places, 2108/2108 transitions.
Applied a total of 0 rules in 157 ms. Remains 184 /184 variables (removed 0) and now considering 2108/2108 (removed 0) transitions.
[2024-05-21 22:27:47] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
[2024-05-21 22:27:47] [INFO ] Invariant cache hit.
[2024-05-21 22:27:47] [INFO ] Implicit Places using invariants in 344 ms returned []
[2024-05-21 22:27:47] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
[2024-05-21 22:27:47] [INFO ] Invariant cache hit.
[2024-05-21 22:27:47] [INFO ] State equation strengthened by 22 read => feed constraints.
[2024-05-21 22:27:50] [INFO ] Implicit Places using invariants and state equation in 2959 ms returned []
Implicit Place search using SMT with State Equation took 3307 ms to find 0 implicit places.
[2024-05-21 22:27:50] [INFO ] Redundant transitions in 135 ms returned []
Running 2105 sub problems to find dead transitions.
[2024-05-21 22:27:50] [INFO ] Flow matrix only has 370 transitions (discarded 1738 similar events)
[2024-05-21 22:27:50] [INFO ] Invariant cache hit.
[2024-05-21 22:27:50] [INFO ] State equation strengthened by 22 read => feed constraints.

BK_STOP 1716330485126

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ CTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution CTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination CTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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-PT-V80P20N10"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="itstools"
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 itstools"
echo " Input is BridgeAndVehicles-PT-V80P20N10, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r048-tajo-171620399200273"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BridgeAndVehicles-PT-V80P20N10.tgz
mv BridgeAndVehicles-PT-V80P20N10 execution
cd execution
if [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "UpperBounds" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] || [ "CTLCardinality" = "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 [ "CTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLCardinality" != "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 "CTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLCardinality.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 '' CTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLCardinality"
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 ;