Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r073-smll-167814399300225.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool ltsminxred
Input is ClientsAndServers-PT-N0005P0, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r073-smll-167814399300225
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 532K
-rw-r--r-- 1 mcc users 7.4K Feb 26 13:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 82K Feb 26 13:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Feb 26 13:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Feb 26 13:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.8K Feb 25 15:43 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 15:43 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Feb 25 15:43 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Feb 25 15:43 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Feb 26 13:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 158K Feb 26 13:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.3K Feb 26 13:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 84K Feb 26 13:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 15:43 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 15:43 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 8 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 9.1K Mar 5 18:22 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 ClientsAndServers-PT-N0005P0-CTLCardinality-00
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-01
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-02
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-03
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-04
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-05
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-06
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-07
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-08
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-09
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-10
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-11
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-12
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-13
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-14
FORMULA_NAME ClientsAndServers-PT-N0005P0-CTLCardinality-15

=== Now, execution of the tool begins

BK_START 1678312547515

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ClientsAndServers-PT-N0005P0
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-08 21:55:50] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -timeout, 360, -rebuildPNML]
[2023-03-08 21:55:50] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-08 21:55:51] [INFO ] Load time of PNML (sax parser for PT used): 43 ms
[2023-03-08 21:55:51] [INFO ] Transformed 25 places.
[2023-03-08 21:55:51] [INFO ] Transformed 18 transitions.
[2023-03-08 21:55:51] [INFO ] Parsed PT model containing 25 places and 18 transitions and 54 arcs in 175 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 26 ms.
Support contains 25 out of 25 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Applied a total of 0 rules in 18 ms. Remains 25 /25 variables (removed 0) and now considering 18/18 (removed 0) transitions.
// Phase 1: matrix 18 rows 25 cols
[2023-03-08 21:55:51] [INFO ] Computed 8 place invariants in 6 ms
[2023-03-08 21:55:51] [INFO ] Implicit Places using invariants in 216 ms returned []
[2023-03-08 21:55:51] [INFO ] Invariant cache hit.
[2023-03-08 21:55:51] [INFO ] Implicit Places using invariants and state equation in 100 ms returned []
Implicit Place search using SMT with State Equation took 374 ms to find 0 implicit places.
[2023-03-08 21:55:51] [INFO ] Invariant cache hit.
[2023-03-08 21:55:51] [INFO ] Dead Transitions using invariants and state equation in 92 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 505 ms. Remains : 25/25 places, 18/18 transitions.
Support contains 25 out of 25 places after structural reductions.
[2023-03-08 21:55:52] [INFO ] Flatten gal took : 29 ms
[2023-03-08 21:55:52] [INFO ] Flatten gal took : 11 ms
[2023-03-08 21:55:52] [INFO ] Input system was already deterministic with 18 transitions.
Incomplete random walk after 10001 steps, including 15 resets, run finished after 444 ms. (steps per millisecond=22 ) properties (out of 96) seen :55
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 29 ms. (steps per millisecond=34 ) properties (out of 41) seen :2
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 25 ms. (steps per millisecond=40 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=22 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 13 ms. (steps per millisecond=77 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 27 ms. (steps per millisecond=37 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=47 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 22 ms. (steps per millisecond=45 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 17 ms. (steps per millisecond=58 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=47 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 26 ms. (steps per millisecond=38 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 22 ms. (steps per millisecond=45 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 20 ms. (steps per millisecond=50 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 11 ms. (steps per millisecond=90 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 8 ms. (steps per millisecond=125 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=47 ) properties (out of 39) seen :0
Incomplete Best-First random walk after 1000 steps, including 2 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 39) seen :0
Running SMT prover for 39 properties.
[2023-03-08 21:55:53] [INFO ] Invariant cache hit.
[2023-03-08 21:55:53] [INFO ] [Real]Absence check using 5 positive place invariants in 3 ms returned sat
[2023-03-08 21:55:53] [INFO ] [Real]Absence check using 5 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-08 21:55:53] [INFO ] After 243ms SMT Verify possible using all constraints in real domain returned unsat :9 sat :0 real:30
[2023-03-08 21:55:53] [INFO ] [Nat]Absence check using 5 positive place invariants in 4 ms returned sat
[2023-03-08 21:55:53] [INFO ] [Nat]Absence check using 5 positive and 3 generalized place invariants in 2 ms returned sat
[2023-03-08 21:55:53] [INFO ] After 31ms SMT Verify possible using state equation in natural domain returned unsat :37 sat :2
[2023-03-08 21:55:53] [INFO ] After 53ms SMT Verify possible using trap constraints in natural domain returned unsat :37 sat :2
Attempting to minimize the solution found.
Minimization took 19 ms.
[2023-03-08 21:55:53] [INFO ] After 244ms SMT Verify possible using all constraints in natural domain returned unsat :37 sat :2
Fused 39 Parikh solutions to 1 different solutions.
Finished Parikh walk after 394 steps, including 0 resets, run visited all 2 properties in 8 ms. (steps per millisecond=49 )
Parikh walk visited 2 properties in 11 ms.
Successfully simplified 37 atomic propositions for a total of 16 simplifications.
[2023-03-08 21:55:53] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 7 ms
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 5 ms
[2023-03-08 21:55:53] [INFO ] Input system was already deterministic with 18 transitions.
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 0 stabilizing places and 0 stable transitions
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 2 places :
Implicit places reduction removed 2 places
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 23 transition count 18
Applied a total of 2 rules in 3 ms. Remains 23 /25 variables (removed 2) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4 ms. Remains : 23/25 places, 18/18 transitions.
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 3 ms
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 12 ms
[2023-03-08 21:55:53] [INFO ] Input system was already deterministic with 18 transitions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 2 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 21/25 places, 18/18 transitions.
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 3 ms
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Input system was already deterministic with 18 transitions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 3 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 4 ms. Remains : 21/25 places, 18/18 transitions.
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Input system was already deterministic with 18 transitions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 2 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 21/25 places, 18/18 transitions.
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Input system was already deterministic with 18 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Drop transitions removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 0 with 6 rules applied. Total rules applied 6 place count 21 transition count 16
Reduce places removed 2 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 4 rules applied. Total rules applied 10 place count 19 transition count 14
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 12 place count 17 transition count 14
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 12 place count 17 transition count 13
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 14 place count 16 transition count 13
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 16 place count 15 transition count 12
Applied a total of 16 rules in 17 ms. Remains 15 /25 variables (removed 10) and now considering 12/18 (removed 6) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 18 ms. Remains : 15/25 places, 12/18 transitions.
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Input system was already deterministic with 12 transitions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 2 places :
Implicit places reduction removed 2 places
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 23 transition count 18
Applied a total of 2 rules in 2 ms. Remains 23 /25 variables (removed 2) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 23/25 places, 18/18 transitions.
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Input system was already deterministic with 18 transitions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 2 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 21/25 places, 18/18 transitions.
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 1 ms
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:53] [INFO ] Input system was already deterministic with 18 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Drop transitions removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 0 with 6 rules applied. Total rules applied 6 place count 21 transition count 16
Reduce places removed 2 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 4 rules applied. Total rules applied 10 place count 19 transition count 14
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 12 place count 17 transition count 14
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 4 Pre rules applied. Total rules applied 12 place count 17 transition count 10
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 20 place count 13 transition count 10
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 24 place count 11 transition count 8
Applied a total of 24 rules in 9 ms. Remains 11 /25 variables (removed 14) and now considering 8/18 (removed 10) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 11 ms. Remains : 11/25 places, 8/18 transitions.
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 0 ms
[2023-03-08 21:55:53] [INFO ] Flatten gal took : 1 ms
[2023-03-08 21:55:54] [INFO ] Input system was already deterministic with 8 transitions.
Finished random walk after 23 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=23 )
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 3 places :
Implicit places reduction removed 3 places
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 22 transition count 18
Applied a total of 3 rules in 2 ms. Remains 22 /25 variables (removed 3) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 22/25 places, 18/18 transitions.
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Input system was already deterministic with 18 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 2 places :
Implicit places reduction removed 2 places
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 23 transition count 17
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 4 place count 22 transition count 17
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 4 place count 22 transition count 16
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 6 place count 21 transition count 16
Applied a total of 6 rules in 10 ms. Remains 21 /25 variables (removed 4) and now considering 16/18 (removed 2) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 18 ms. Remains : 21/25 places, 16/18 transitions.
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Input system was already deterministic with 16 transitions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 3 places :
Implicit places reduction removed 3 places
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 22 transition count 18
Applied a total of 3 rules in 2 ms. Remains 22 /25 variables (removed 3) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 22/25 places, 18/18 transitions.
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Input system was already deterministic with 18 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 3 places :
Implicit places reduction removed 3 places
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 22 transition count 18
Applied a total of 3 rules in 3 ms. Remains 22 /25 variables (removed 3) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 3 ms. Remains : 22/25 places, 18/18 transitions.
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Input system was already deterministic with 18 transitions.
Starting structural reductions in LTL mode, iteration 0 : 25/25 places, 18/18 transitions.
Discarding 4 places :
Implicit places reduction removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 21 transition count 18
Applied a total of 4 rules in 2 ms. Remains 21 /25 variables (removed 4) and now considering 18/18 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 21/25 places, 18/18 transitions.
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 1 ms
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Input system was already deterministic with 18 transitions.
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 3 ms
[2023-03-08 21:55:54] [INFO ] Flatten gal took : 2 ms
[2023-03-08 21:55:54] [INFO ] Export to MCC of 12 properties in file /home/mcc/execution/CTLCardinality.sr.xml took 3 ms.
[2023-03-08 21:55:54] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 25 places, 18 transitions and 54 arcs took 0 ms.
Total runtime 3185 ms.
There are residual formulas that ITS could not solve within timeout
pnml2lts-sym model.pnml --lace-workers=4 --vset=lddmc --saturation=sat -rbs,w2W,ru,hf --sylvan-sizes=20,28,20,28 --ctl=/tmp/468/ctl_0_ --ctl=/tmp/468/ctl_1_ --ctl=/tmp/468/ctl_2_ --ctl=/tmp/468/ctl_3_ --ctl=/tmp/468/ctl_4_ --ctl=/tmp/468/ctl_5_ --ctl=/tmp/468/ctl_6_ --ctl=/tmp/468/ctl_7_ --ctl=/tmp/468/ctl_8_ --ctl=/tmp/468/ctl_9_ --ctl=/tmp/468/ctl_10_ --ctl=/tmp/468/ctl_11_ --mu-par --mu-opt
TIME LIMIT: Killed by timeout after 3570 seconds
MemTotal: 16393232 kB
MemFree: 11091252 kB
After kill :
MemTotal: 16393232 kB
MemFree: 16097708 kB
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-00 TRUE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-01 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-02 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-03 TRUE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
Could not compute solution for formula : ClientsAndServers-PT-N0005P0-CTLCardinality-04
Could not compute solution for formula : ClientsAndServers-PT-N0005P0-CTLCardinality-05
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-06 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
Could not compute solution for formula : ClientsAndServers-PT-N0005P0-CTLCardinality-09
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-11 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-13 TRUE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-14 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN
FORMULA ClientsAndServers-PT-N0005P0-CTLCardinality-15 FALSE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING USE_NUPN

BK_STOP 1678316126771

--------------------
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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination CTLCardinality -timeout 360 -rebuildPNML
mcc2023
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-00
ctl formula formula --ctl=/tmp/468/ctl_0_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-01
ctl formula formula --ctl=/tmp/468/ctl_1_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-02
ctl formula formula --ctl=/tmp/468/ctl_2_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-03
ctl formula formula --ctl=/tmp/468/ctl_3_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-04
ctl formula formula --ctl=/tmp/468/ctl_4_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-05
ctl formula formula --ctl=/tmp/468/ctl_5_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-06
ctl formula formula --ctl=/tmp/468/ctl_6_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-09
ctl formula formula --ctl=/tmp/468/ctl_7_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-11
ctl formula formula --ctl=/tmp/468/ctl_8_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-13
ctl formula formula --ctl=/tmp/468/ctl_9_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-14
ctl formula formula --ctl=/tmp/468/ctl_10_
ctl formula name ClientsAndServers-PT-N0005P0-CTLCardinality-15
ctl formula formula --ctl=/tmp/468/ctl_11_
pnml2lts-sym: Exploration order is bfs-prev
pnml2lts-sym: Saturation strategy is sat
pnml2lts-sym: Guided search strategy is unguided
pnml2lts-sym: Attractor strategy is default
pnml2lts-sym: opening model.pnml
pnml2lts-sym: Edge label is id
Warning: program compiled against libxml 210 using older 209
pnml2lts-sym: Petri net has 25 places, 18 transitions and 54 arcs
pnml2lts-sym: Petri net Petri analyzed
pnml2lts-sym: There are no safe places
pnml2lts-sym: Loading Petri net took 0.000 real 0.000 user 0.000 sys
pnml2lts-sym: Initializing regrouping layer
pnml2lts-sym: Regroup specification: bs,w2W,ru,hf
pnml2lts-sym: Regroup Boost's Sloan
pnml2lts-sym: Regroup over-approximate must-write to may-write
pnml2lts-sym: Regroup Row sUbsume
pnml2lts-sym: Reqroup Horizontal Flip
pnml2lts-sym: Regrouping: 18->18 groups
pnml2lts-sym: Regrouping took 0.010 real 0.000 user 0.000 sys
pnml2lts-sym: state vector length is 25; there are 18 groups
pnml2lts-sym: Creating a multi-core ListDD domain.
pnml2lts-sym: Sylvan allocates 15.000 GB virtual memory for nodes table and operation cache.
pnml2lts-sym: Initial nodes table and operation cache requires 60.00 MB.
pnml2lts-sym: Using GBgetTransitionsShortR2W as next-state function
pnml2lts-sym: got initial state
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: parsing CTL formula
pnml2lts-sym: converting CTL to mu-calculus...
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Exploration took 477254 group checks and 0 next state calls
pnml2lts-sym: reachability took 8.160 real 32.170 user 0.280 sys
pnml2lts-sym: counting visited states...
pnml2lts-sym: counting took 0.030 real 0.100 user 0.000 sys
pnml2lts-sym: state space has 125510607915 states, 260157 nodes
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/468/ctl_11_ does not hold for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/468/ctl_1_ does not hold for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/468/ctl_3_ holds for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/468/ctl_0_ holds for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/468/ctl_2_ does not hold for the initial state
pnml2lts-sym: Formula /tmp/468/ctl_6_ does not hold for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/468/ctl_10_ does not hold for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/468/ctl_8_ does not hold for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: vset_sylvan: starting garbage collection
pnml2lts-sym: vset_sylvan: garbage collection done
pnml2lts-sym: Formula /tmp/468/ctl_9_ holds for the initial state
pnml2lts-sym: vset_sylvan: starting garbage collection
Killing (15) : 474
Killing (9) : 474

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="ClientsAndServers-PT-N0005P0"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="ltsminxred"
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 2-5348"
echo " Executing tool ltsminxred"
echo " Input is ClientsAndServers-PT-N0005P0, 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 r073-smll-167814399300225"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ClientsAndServers-PT-N0005P0.tgz
mv ClientsAndServers-PT-N0005P0 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 ;