About the Execution of ITS-Tools for SimpleLoadBal-PT-02
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
0.000 | 6814.00 | 0.00 | 0.00 | FTTTFTTFTTTTFFFT | normal |
Execution Chart
Sorry, for this execution, no execution chart could be reported.
Trace from the execution
Formatting '/data/fkordon/mcc2025-input.r212-tall-174901994500497.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.....................................................................................
=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is SimpleLoadBal-PT-02, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r212-tall-174901994500497
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 560K
-rw-r--r-- 1 mcc users 8.2K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 8.1K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:33 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K May 29 14:33 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.9K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.3K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 16K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 123K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 17K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 107K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:33 equiv_col
-rw-r--r-- 1 mcc users 3 May 29 14:33 instance
-rw-r--r-- 1 mcc users 6 May 29 14:33 iscolored
-rw-r--r-- 1 mcc users 38K May 29 14:33 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
echo here is the order used to build the result vector(from xml file)
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2023-12
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2023-13
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2023-14
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2023-15
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-00
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-01
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-02
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-03
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-04
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-05
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-06
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-07
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-08
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-09
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-10
FORMULA_NAME SimpleLoadBal-PT-02-CTLCardinality-2025-11
=== Now, execution of the tool begins
BK_START 1749202497985
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SimpleLoadBal-PT-02
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
CTLCardinality PT
Running Version 202505121319
[2025-06-06 09:34:59] [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]
[2025-06-06 09:34:59] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-06 09:34:59] [INFO ] Load time of PNML (sax parser for PT used): 52 ms
[2025-06-06 09:34:59] [INFO ] Transformed 32 places.
[2025-06-06 09:34:59] [INFO ] Transformed 45 transitions.
[2025-06-06 09:34:59] [INFO ] Found NUPN structural information;
[2025-06-06 09:34:59] [INFO ] Completing missing partition info from NUPN : creating a component with [P_client_idle_1, P_client_idle_2, P_client_waiting_1, P_client_waiting_2, P_client_request_1, P_client_request_2, P_client_ack_1, P_client_ack_2, P_server_idle_1, P_server_idle_2, P_server_waiting_1, P_server_waiting_2, P_server_processed_1, P_server_processed_2, P_server_notification_1, P_server_notification_2, P_server_notification_ack_1, P_server_notification_ack_2, P_server_request_1_1, P_server_request_1_2, P_server_request_2_1, P_server_request_2_2, P_lb_idle_1, P_lb_routing_1_1, P_lb_routing_1_2, P_lb_balancing_1, P_lb_load_1_0, P_lb_load_1_1, P_lb_load_1_2, P_lb_load_2_0, P_lb_load_2_1, P_lb_load_2_2]
[2025-06-06 09:34:59] [INFO ] Parsed PT model containing 32 places and 45 transitions and 252 arcs in 137 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 13 ms.
Initial state reduction rules removed 4 formulas.
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2023-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 31 out of 32 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 45/45 transitions.
Applied a total of 0 rules in 6 ms. Remains 32 /32 variables (removed 0) and now considering 45/45 (removed 0) transitions.
[2025-06-06 09:34:59] [INFO ] Flow matrix only has 35 transitions (discarded 10 similar events)
// Phase 1: matrix 35 rows 32 cols
[2025-06-06 09:34:59] [INFO ] Computed 13 invariants in 6 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:34:59] [INFO ] Implicit Places using invariants in 159 ms returned []
[2025-06-06 09:34:59] [INFO ] Flow matrix only has 35 transitions (discarded 10 similar events)
[2025-06-06 09:34:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:34:59] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-06 09:34:59] [INFO ] Implicit Places using invariants and state equation in 92 ms returned []
Implicit Place search using SMT with State Equation took 280 ms to find 0 implicit places.
Running 43 sub problems to find dead transitions.
[2025-06-06 09:34:59] [INFO ] Flow matrix only has 35 transitions (discarded 10 similar events)
[2025-06-06 09:34:59] [INFO ] Invariant cache hit.
[2025-06-06 09:34:59] [INFO ] State equation strengthened by 10 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/30 variables, 30/30 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/30 variables, 5/35 constraints. Problems are: Problem set: 0 solved, 43 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/30 variables, 4/39 constraints. Problems are: Problem set: 0 solved, 43 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 09:34:59] [INFO ] Deduced a trap composed of 7 places in 38 ms of which 6 ms to minimize.
Problem TDEAD36 is UNSAT
At refinement iteration 3 (INCLUDED_ONLY) 0/30 variables, 1/40 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/30 variables, 0/40 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 5 (OVERLAPS) 2/32 variables, 4/44 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/32 variables, 2/46 constraints. Problems are: Problem set: 1 solved, 42 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 09:35:00] [INFO ] Deduced a trap composed of 13 places in 47 ms of which 4 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/32 variables, 1/47 constraints. Problems are: Problem set: 1 solved, 42 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 09:35:00] [INFO ] Deduced a trap composed of 5 places in 35 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/32 variables, 1/48 constraints. Problems are: Problem set: 1 solved, 42 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 09:35:00] [INFO ] Deduced a trap composed of 13 places in 35 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/32 variables, 1/49 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/32 variables, 0/49 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 11 (OVERLAPS) 35/67 variables, 32/81 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/67 variables, 10/91 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/67 variables, 0/91 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 14 (OVERLAPS) 0/67 variables, 0/91 constraints. Problems are: Problem set: 1 solved, 42 unsolved
No progress, stopping.
After SMT solving in domain Real declared 67/67 variables, and 91 constraints, problems are : Problem set: 1 solved, 42 unsolved in 1319 ms.
Refiners :[Domain max(s): 32/32 constraints, Positive P Invariants (semi-flows): 9/9 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 32/32 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 43/43 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 42 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/30 variables, 30/30 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/30 variables, 5/35 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/30 variables, 4/39 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/30 variables, 2/41 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/30 variables, 0/41 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 5 (OVERLAPS) 2/32 variables, 4/45 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/32 variables, 2/47 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/32 variables, 2/49 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/32 variables, 0/49 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 9 (OVERLAPS) 35/67 variables, 32/81 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/67 variables, 10/91 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/67 variables, 42/133 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/67 variables, 0/133 constraints. Problems are: Problem set: 1 solved, 42 unsolved
At refinement iteration 13 (OVERLAPS) 0/67 variables, 0/133 constraints. Problems are: Problem set: 1 solved, 42 unsolved
No progress, stopping.
After SMT solving in domain Int declared 67/67 variables, and 133 constraints, problems are : Problem set: 1 solved, 42 unsolved in 1064 ms.
Refiners :[Domain max(s): 32/32 constraints, Positive P Invariants (semi-flows): 9/9 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 32/32 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 42/43 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2453ms problems are : Problem set: 1 solved, 42 unsolved
Search for dead transitions found 1 dead transitions in 2461ms
Found 1 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 1 transitions
Dead transitions reduction (with SMT) removed 1 transitions
Starting structural reductions in LTL mode, iteration 1 : 32/32 places, 44/45 transitions.
Applied a total of 0 rules in 1 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 2768 ms. Remains : 32/32 places, 44/45 transitions.
Support contains 31 out of 32 places after structural reductions.
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 19 ms
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 7 ms
[2025-06-06 09:35:02] [INFO ] Input system was already deterministic with 44 transitions.
Reduction of identical properties reduced properties to check from 44 to 41
RANDOM walk for 322 steps (0 resets) in 41 ms. (7 steps per ms) remains 0/41 properties
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 6 ms
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 5 ms
[2025-06-06 09:35:02] [INFO ] Input system was already deterministic with 44 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Starting structural reductions in SI_CTL mode, iteration 0 : 32/32 places, 44/44 transitions.
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 0 with 4 rules applied. Total rules applied 4 place count 30 transition count 42
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 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 7 place count 28 transition count 41
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 0 with 2 rules applied. Total rules applied 9 place count 27 transition count 40
Applied a total of 9 rules in 14 ms. Remains 27 /32 variables (removed 5) and now considering 40/44 (removed 4) transitions.
[2025-06-06 09:35:02] [INFO ] Flow matrix only has 31 transitions (discarded 9 similar events)
// Phase 1: matrix 31 rows 27 cols
[2025-06-06 09:35:02] [INFO ] Computed 12 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:02] [INFO ] Implicit Places using invariants in 38 ms returned [1, 7, 8]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 43 ms to find 3 implicit places.
Starting structural reductions in SI_CTL mode, iteration 1 : 24/32 places, 40/44 transitions.
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 0 with 4 rules applied. Total rules applied 4 place count 22 transition count 38
Applied a total of 4 rules in 2 ms. Remains 22 /24 variables (removed 2) and now considering 38/40 (removed 2) transitions.
[2025-06-06 09:35:02] [INFO ] Flow matrix only has 29 transitions (discarded 9 similar events)
// Phase 1: matrix 29 rows 22 cols
[2025-06-06 09:35:02] [INFO ] Computed 9 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:02] [INFO ] Implicit Places using invariants in 36 ms returned []
[2025-06-06 09:35:02] [INFO ] Flow matrix only has 29 transitions (discarded 9 similar events)
[2025-06-06 09:35:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:02] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-06 09:35:02] [INFO ] Implicit Places using invariants and state equation in 44 ms returned []
Implicit Place search using SMT with State Equation took 82 ms to find 0 implicit places.
Starting structural reductions in SI_CTL mode, iteration 2 : 22/32 places, 38/44 transitions.
Finished structural reductions in SI_CTL mode , in 2 iterations and 141 ms. Remains : 22/32 places, 38/44 transitions.
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 4 ms
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 4 ms
[2025-06-06 09:35:02] [INFO ] Input system was already deterministic with 38 transitions.
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 4 ms
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:02] [INFO ] Time to serialize gal into /tmp/CTLCardinality3901346102482693254.gal : 2 ms
[2025-06-06 09:35:02] [INFO ] Time to serialize properties into /tmp/CTLCardinality4393582624419360904.ctl : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality3901346102482693254.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality4393582624419360904.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...283
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,149,0.025059,4232,2,384,5,2033,6,0,129,1691,0
Converting to forward existential form...Done !
original formula: AF(((P_lb_balancing_1==0) * EF((((P_lb_routing_1_1==0)&&(P_client_request_1==1))||(P_server_idle_1==0)))))
=> equivalent forward existential formula: [FwdG(Init,!(((P_lb_balancing_1==0) * E(TRUE U (((P_lb_routing_1_1==0)&&(P_client_request_1==1))||(P_server_idle...175
Reverse transition relation is NOT exact ! Due to transitions t17, t23, t24, t25, t29, t30, t31, t32, t33, t35, t36, t37, Intersection with reachable at e...220
(forward)formula 0,1,0.06318,5768,1,0,94,8136,104,47,1238,6330,97
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-01 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !
***************************************
Starting structural reductions in SI_CTL mode, iteration 0 : 32/32 places, 44/44 transitions.
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 0 with 2 rules applied. Total rules applied 2 place count 31 transition count 43
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 0 with 6 rules applied. Total rules applied 8 place count 27 transition count 41
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 4 rules applied. Total rules applied 12 place count 25 transition count 39
Applied a total of 12 rules in 5 ms. Remains 25 /32 variables (removed 7) and now considering 39/44 (removed 5) transitions.
[2025-06-06 09:35:02] [INFO ] Flow matrix only has 30 transitions (discarded 9 similar events)
// Phase 1: matrix 30 rows 25 cols
[2025-06-06 09:35:02] [INFO ] Computed 11 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:02] [INFO ] Implicit Places using invariants in 33 ms returned [4]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 34 ms to find 1 implicit places.
Starting structural reductions in SI_CTL mode, iteration 1 : 24/32 places, 39/44 transitions.
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 0 with 2 rules applied. Total rules applied 2 place count 23 transition count 38
Applied a total of 2 rules in 4 ms. Remains 23 /24 variables (removed 1) and now considering 38/39 (removed 1) transitions.
[2025-06-06 09:35:02] [INFO ] Flow matrix only has 29 transitions (discarded 9 similar events)
// Phase 1: matrix 29 rows 23 cols
[2025-06-06 09:35:02] [INFO ] Computed 10 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:02] [INFO ] Implicit Places using invariants in 39 ms returned []
[2025-06-06 09:35:02] [INFO ] Flow matrix only has 29 transitions (discarded 9 similar events)
[2025-06-06 09:35:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:02] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-06 09:35:02] [INFO ] Implicit Places using invariants and state equation in 65 ms returned []
Implicit Place search using SMT with State Equation took 106 ms to find 0 implicit places.
Starting structural reductions in SI_CTL mode, iteration 2 : 23/32 places, 38/44 transitions.
Finished structural reductions in SI_CTL mode , in 2 iterations and 149 ms. Remains : 23/32 places, 38/44 transitions.
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:02] [INFO ] Input system was already deterministic with 38 transitions.
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:02] [INFO ] Flatten gal took : 4 ms
[2025-06-06 09:35:02] [INFO ] Time to serialize gal into /tmp/CTLCardinality18330824085948113626.gal : 1 ms
[2025-06-06 09:35:02] [INFO ] Time to serialize properties into /tmp/CTLCardinality17986445103788037554.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality18330824085948113626.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality17986445103788037554.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...285
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,144,0.013361,4140,2,223,5,1186,6,0,133,1201,0
Converting to forward existential form...Done !
original formula: AF(((P_server_waiting_2==1) + !(E(((P_server_notification_2==0)||(P_lb_idle_1==1)) U AG(((P_lb_routing_1_2==0)||(P_server_idle_2==1))))))...156
=> equivalent forward existential formula: [FwdG(Init,!(((P_server_waiting_2==1) + !(E(((P_server_notification_2==0)||(P_lb_idle_1==1)) U !(E(TRUE U !(((P_...213
Reverse transition relation is NOT exact ! Due to transitions t17, t23, t24, t25, t28, t29, t30, t31, t32, t33, t35, t37, Intersection with reachable at e...220
(forward)formula 0,1,0.042835,5292,1,0,100,5620,109,47,1258,4867,103
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-02 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !
***************************************
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
[2025-06-06 09:35:03] [INFO ] Flow matrix only has 35 transitions (discarded 9 similar events)
// Phase 1: matrix 35 rows 32 cols
[2025-06-06 09:35:03] [INFO ] Computed 13 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:03] [INFO ] Implicit Places using invariants in 47 ms returned [2, 3, 11]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 50 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 29/32 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 29 /29 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 52 ms. Remains : 29/32 places, 44/44 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 4 ms
[2025-06-06 09:35:03] [INFO ] Input system was already deterministic with 44 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 10 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize gal into /tmp/CTLCardinality3623909018023393924.gal : 1 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize properties into /tmp/CTLCardinality5477777523117501240.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality3623909018023393924.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality5477777523117501240.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...283
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,832,0.022593,4696,2,515,5,3242,6,0,163,3152,0
Converting to forward existential form...Done !
original formula: (EG(EX((AX((P_client_ack_2==1)) + EG(((P_server_notification_ack_1==0)||(P_server_notification_ack_2==1)))))) + E((E((P_lb_load_1_0==0) U...579
=> equivalent forward existential formula: ([FwdG(Init,EX((!(EX(!((P_client_ack_2==1)))) + EG(((P_server_notification_ack_1==0)||(P_server_notification_ack...1785
Reverse transition relation is NOT exact ! Due to transitions t4, t5, t6, t7, t27, t29, t35, t36, t37, t41, t42, t43, Intersection with reachable at each ...216
(forward)formula 0,1,0.084977,7512,1,0,104,14574,114,51,1414,13865,107
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-04 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !
***************************************
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 44/44 transitions.
Applied a total of 0 rules in 0 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
[2025-06-06 09:35:03] [INFO ] Flow matrix only has 35 transitions (discarded 9 similar events)
[2025-06-06 09:35:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:03] [INFO ] Implicit Places using invariants in 52 ms returned [2, 3, 10, 11]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 53 ms to find 4 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 28/32 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 28 /28 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 55 ms. Remains : 28/32 places, 44/44 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 4 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Input system was already deterministic with 44 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize gal into /tmp/CTLCardinality15506652913384570246.gal : 1 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize properties into /tmp/CTLCardinality4899790751735762051.ctl : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality15506652913384570246.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality4899790751735762051.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...284
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,832,0.021839,4688,2,490,5,3118,6,0,159,2958,0
Converting to forward existential form...Done !
original formula: EF(EG(AX(((P_server_request_1_2==1)||(P_lb_load_1_2==1)))))
=> equivalent forward existential formula: [FwdG(FwdU(Init,TRUE),!(EX(!(((P_server_request_1_2==1)||(P_lb_load_1_2==1))))))] != FALSE
Reverse transition relation is NOT exact ! Due to transitions t4, t5, t6, t7, t27, t29, t35, t36, t37, t41, t42, t43, Intersection with reachable at each ...216
(forward)formula 0,1,0.074739,6992,1,0,106,13957,111,52,1349,11495,101
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-05 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !
***************************************
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 44/44 transitions.
Applied a total of 0 rules in 0 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
[2025-06-06 09:35:03] [INFO ] Flow matrix only has 35 transitions (discarded 9 similar events)
[2025-06-06 09:35:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:03] [INFO ] Implicit Places using invariants in 47 ms returned [2, 3, 10, 11]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 49 ms to find 4 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 28/32 places, 44/44 transitions.
Applied a total of 0 rules in 0 ms. Remains 28 /28 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 49 ms. Remains : 28/32 places, 44/44 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Input system was already deterministic with 44 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize gal into /tmp/CTLCardinality6062347706759715987.gal : 1 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize properties into /tmp/CTLCardinality14666029839475366425.ctl : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality6062347706759715987.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality14666029839475366425.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...284
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,832,0.022663,4688,2,490,5,3118,6,0,159,2958,0
Converting to forward existential form...Done !
original formula: E(E(((P_server_request_1_1==0)||(P_server_request_1_2==1)) U (AX(EX(((P_lb_load_1_1==0)||(P_lb_balancing_1==1)))) * AX(((P_lb_load_2_0!=1...419
=> equivalent forward existential formula: ([(FwdU(Init,E(((P_server_request_1_1==0)||(P_server_request_1_2==1)) U (!(EX(!(EX(((P_lb_load_1_1==0)||(P_lb_ba...690
Reverse transition relation is NOT exact ! Due to transitions t4, t5, t6, t7, t27, t29, t35, t36, t37, t41, t42, t43, Intersection with reachable at each ...216
(forward)formula 0,1,0.184992,12880,1,0,263,43731,115,154,1350,47836,278
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-06 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !
***************************************
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
[2025-06-06 09:35:03] [INFO ] Flow matrix only has 35 transitions (discarded 9 similar events)
[2025-06-06 09:35:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:03] [INFO ] Implicit Places using invariants in 42 ms returned [3, 10]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 43 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 30/32 places, 44/44 transitions.
Applied a total of 0 rules in 0 ms. Remains 30 /30 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 44 ms. Remains : 30/32 places, 44/44 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Input system was already deterministic with 44 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize gal into /tmp/CTLCardinality6987347827295545300.gal : 0 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize properties into /tmp/CTLCardinality18402658992616124428.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality6987347827295545300.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality18402658992616124428.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...284
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,832,0.022781,4716,2,495,5,3158,6,0,167,3040,0
Converting to forward existential form...Done !
original formula: A((E(EF((((P_server_notification_ack_1==0)||(P_server_notification_2==1))&&((P_client_idle_1==0)||(P_client_waiting_1==1)))) U ((P_client...412
=> equivalent forward existential formula: [((Init * !(EG(!(!(EX(!(!(!(E(TRUE U !(((E((P_lb_load_1_0==1) U (P_server_waiting_2==1)) + (P_lb_load_1_2==1)) +...813
Reverse transition relation is NOT exact ! Due to transitions t4, t5, t6, t7, t27, t29, t35, t36, t37, t41, t42, t43, Intersection with reachable at each ...216
(forward)formula 0,1,0.096605,8172,1,0,126,16704,123,64,1433,15014,135
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !
***************************************
ITS tools runner thread asked to quit. Dying gracefully.
Starting structural reductions in SI_CTL mode, iteration 0 : 32/32 places, 44/44 transitions.
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 0 with 2 rules applied. Total rules applied 2 place count 31 transition count 43
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 4 places and 0 transitions.
Iterating global reduction 0 with 6 rules applied. Total rules applied 8 place count 27 transition count 41
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 0 with 4 rules applied. Total rules applied 12 place count 25 transition count 39
Applied a total of 12 rules in 8 ms. Remains 25 /32 variables (removed 7) and now considering 39/44 (removed 5) transitions.
[2025-06-06 09:35:03] [INFO ] Flow matrix only has 30 transitions (discarded 9 similar events)
// Phase 1: matrix 30 rows 25 cols
[2025-06-06 09:35:03] [INFO ] Computed 11 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:03] [INFO ] Implicit Places using invariants in 41 ms returned [4, 5]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 41 ms to find 2 implicit places.
Starting structural reductions in SI_CTL mode, iteration 1 : 23/32 places, 39/44 transitions.
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 0 with 2 rules applied. Total rules applied 2 place count 22 transition count 38
Applied a total of 2 rules in 4 ms. Remains 22 /23 variables (removed 1) and now considering 38/39 (removed 1) transitions.
[2025-06-06 09:35:03] [INFO ] Flow matrix only has 29 transitions (discarded 9 similar events)
// Phase 1: matrix 29 rows 22 cols
[2025-06-06 09:35:03] [INFO ] Computed 9 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:03] [INFO ] Implicit Places using invariants in 31 ms returned []
[2025-06-06 09:35:03] [INFO ] Flow matrix only has 29 transitions (discarded 9 similar events)
[2025-06-06 09:35:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:03] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-06-06 09:35:03] [INFO ] Implicit Places using invariants and state equation in 46 ms returned []
Implicit Place search using SMT with State Equation took 77 ms to find 0 implicit places.
Starting structural reductions in SI_CTL mode, iteration 2 : 22/32 places, 38/44 transitions.
Finished structural reductions in SI_CTL mode , in 2 iterations and 131 ms. Remains : 22/32 places, 38/44 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:03] [INFO ] Input system was already deterministic with 38 transitions.
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:03] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize gal into /tmp/CTLCardinality1631229400332081298.gal : 0 ms
[2025-06-06 09:35:03] [INFO ] Time to serialize properties into /tmp/CTLCardinality9295662101706305538.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality1631229400332081298.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality9295662101706305538.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...283
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,144,0.026917,4520,2,486,5,2259,6,0,129,1949,0
Converting to forward existential form...Done !
original formula: AF(((P_lb_load_2_1==1) * ((AG(((P_server_request_1_1==0)&&(P_server_notification_ack_1==0))) + (P_lb_load_1_1==0)) + (P_server_processed_...163
=> equivalent forward existential formula: [FwdG(Init,!(((P_lb_load_2_1==1) * ((!(E(TRUE U !(((P_server_request_1_1==0)&&(P_server_notification_ack_1==0)))...220
Reverse transition relation is NOT exact ! Due to transitions t17, t23, t24, t25, t29, t30, t31, t32, t33, t35, t36, t37, Intersection with reachable at e...220
(forward)formula 0,0,0.078691,6696,1,0,124,10030,107,72,1231,8824,123
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-08 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !
***************************************
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 44/44 transitions.
Applied a total of 0 rules in 2 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
[2025-06-06 09:35:04] [INFO ] Flow matrix only has 35 transitions (discarded 9 similar events)
// Phase 1: matrix 35 rows 32 cols
[2025-06-06 09:35:04] [INFO ] Computed 13 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:04] [INFO ] Implicit Places using invariants in 44 ms returned [2, 3, 10, 11]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 45 ms to find 4 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 28/32 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 28 /28 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 49 ms. Remains : 28/32 places, 44/44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Input system was already deterministic with 44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize gal into /tmp/CTLCardinality5443966855753527570.gal : 0 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize properties into /tmp/CTLCardinality9650335801488403329.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality5443966855753527570.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality9650335801488403329.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...283
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,832,0.022914,4688,2,490,5,3118,6,0,159,2958,0
Converting to forward existential form...Done !
original formula: AX((EX(EX(((((P_server_processed_2==0)||(P_server_request_2_1==1))&&(P_lb_load_2_1==1))&&(P_server_request_2_1==1)))) * ((P_server_idle_2...185
=> equivalent forward existential formula: ([(EY(Init) * !(EX(EX(((((P_server_processed_2==0)||(P_server_request_2_1==1))&&(P_lb_load_2_1==1))&&(P_server_r...258
(forward)formula 0,0,0.024348,4944,1,0,9,3118,9,2,257,2958,2
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-10 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !
***************************************
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 44/44 transitions.
Applied a total of 0 rules in 0 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
[2025-06-06 09:35:04] [INFO ] Flow matrix only has 35 transitions (discarded 9 similar events)
[2025-06-06 09:35:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:04] [INFO ] Implicit Places using invariants in 42 ms returned [2, 3, 10, 11]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 43 ms to find 4 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 28/32 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 28 /28 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 45 ms. Remains : 28/32 places, 44/44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:04] [INFO ] Input system was already deterministic with 44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize gal into /tmp/CTLCardinality462329698084269835.gal : 0 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize properties into /tmp/CTLCardinality2378837916602066449.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality462329698084269835.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality2378837916602066449.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...282
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,832,0.022861,4684,2,490,5,3118,6,0,159,2958,0
Converting to forward existential form...Done !
original formula: AX(EF((((P_client_request_1!=1) + AG((P_server_notification_1==1))) + EX((P_server_notification_1==1)))))
=> equivalent forward existential formula: [(EY(Init) * !(E(TRUE U (((P_client_request_1!=1) + !(E(TRUE U !((P_server_notification_1==1))))) + EX((P_server...188
Reverse transition relation is NOT exact ! Due to transitions t4, t5, t6, t7, t27, t29, t35, t36, t37, t41, t42, t43, Intersection with reachable at each ...216
(forward)formula 0,1,0.083637,7372,1,0,108,15261,111,51,1366,11768,112
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2025-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !
***************************************
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 44/44 transitions.
Applied a total of 0 rules in 2 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
[2025-06-06 09:35:04] [INFO ] Flow matrix only has 35 transitions (discarded 9 similar events)
[2025-06-06 09:35:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:04] [INFO ] Implicit Places using invariants in 44 ms returned [2, 10]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 45 ms to find 2 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 30/32 places, 44/44 transitions.
Applied a total of 0 rules in 0 ms. Remains 30 /30 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 47 ms. Remains : 30/32 places, 44/44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Input system was already deterministic with 44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize gal into /tmp/CTLCardinality8685001891128452639.gal : 0 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize properties into /tmp/CTLCardinality4477299975860765390.ctl : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality8685001891128452639.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality4477299975860765390.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...283
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,832,0.028784,4712,2,498,5,3214,6,0,167,3039,0
Converting to forward existential form...Done !
original formula: EX(AG(AX((AX((P_server_waiting_2==1)) * ((P_client_waiting_2==1)||((P_server_request_1_1==0)&&(P_server_idle_1==1)))))))
=> equivalent forward existential formula: [(EY(Init) * !(E(TRUE U !(!(EX(!((!(EX(!((P_server_waiting_2==1)))) * ((P_client_waiting_2==1)||((P_server_reque...207
Reverse transition relation is NOT exact ! Due to transitions t4, t5, t6, t7, t27, t29, t35, t36, t37, t41, t42, t43, Intersection with reachable at each ...216
(forward)formula 0,0,0.082679,7016,1,0,111,13488,111,53,1415,10856,107
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2023-12 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !
***************************************
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
[2025-06-06 09:35:04] [INFO ] Flow matrix only has 35 transitions (discarded 9 similar events)
[2025-06-06 09:35:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:04] [INFO ] Implicit Places using invariants in 40 ms returned [2, 3, 11]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 40 ms to find 3 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 29/32 places, 44/44 transitions.
Applied a total of 0 rules in 0 ms. Remains 29 /29 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 41 ms. Remains : 29/32 places, 44/44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:04] [INFO ] Input system was already deterministic with 44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize gal into /tmp/CTLCardinality14487046494026312332.gal : 1 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize properties into /tmp/CTLCardinality15116126966059881961.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality14487046494026312332.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality15116126966059881961.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...285
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,832,0.026578,4696,2,515,5,3242,6,0,163,3152,0
Converting to forward existential form...Done !
original formula: (AX(!(A(EX(((P_lb_routing_1_2==0)||(P_lb_routing_1_1==1))) U (P_lb_load_1_2!=1)))) + AX(AF(((P_client_ack_2==0)||(P_server_waiting_1==1))...158
=> equivalent forward existential formula: [FwdG(EY((Init * !(!(EX(!(!(!((E(!((P_lb_load_1_2!=1)) U (!(EX(((P_lb_routing_1_2==0)||(P_lb_routing_1_1==1)))) ...277
Reverse transition relation is NOT exact ! Due to transitions t4, t5, t6, t7, t27, t29, t35, t36, t37, t41, t42, t43, Intersection with reachable at each ...216
(forward)formula 0,1,0.094137,7768,1,0,137,17659,120,64,1396,15134,153
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2023-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !
***************************************
Starting structural reductions in LTL mode, iteration 0 : 32/32 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 32 /32 variables (removed 0) and now considering 44/44 (removed 0) transitions.
[2025-06-06 09:35:04] [INFO ] Flow matrix only has 35 transitions (discarded 9 similar events)
[2025-06-06 09:35:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 09:35:04] [INFO ] Implicit Places using invariants in 47 ms returned [2, 3, 10, 11]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 48 ms to find 4 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 28/32 places, 44/44 transitions.
Applied a total of 0 rules in 0 ms. Remains 28 /28 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 50 ms. Remains : 28/32 places, 44/44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 3 ms
[2025-06-06 09:35:04] [INFO ] Input system was already deterministic with 44 transitions.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 2 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize gal into /tmp/CTLCardinality18409579510369546617.gal : 1 ms
[2025-06-06 09:35:04] [INFO ] Time to serialize properties into /tmp/CTLCardinality4566602282935217711.ctl : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLCardinality18409579510369546617.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLCardinality4566602282935217711.ctl' '--gen-order' 'FOLLOW'
its-ctl command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...284
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,832,0.022933,4688,2,490,5,3118,6,0,159,2958,0
Converting to forward existential form...Done !
original formula: EX(((EG((P_server_request_1_2==0)) + (P_lb_load_1_1==1)) + AX(AX(FALSE))))
=> equivalent forward existential formula: (([FwdG(EY(Init),(P_server_request_1_2==0))] != FALSE + [(EY(Init) * (P_lb_load_1_1==1))] != FALSE) + [(EY(Init)...195
Hit Full ! (commute/partial/dont) 39/0/5
(forward)formula 0,1,0.058479,6352,1,0,9,9871,19,2,1035,6293,9
FORMULA SimpleLoadBal-PT-02-CTLCardinality-2023-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !
***************************************
ITS tools runner thread asked to quit. Dying gracefully.
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 4 ms
[2025-06-06 09:35:04] [INFO ] Flatten gal took : 3 ms
Total runtime 5627 ms.
BK_STOP 1749202504799
--------------------
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
++ sed s/.jar//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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="SimpleLoadBal-PT-02"
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 2-5832"
echo " Executing tool itstools"
echo " Input is SimpleLoadBal-PT-02, 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 r212-tall-174901994500497"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/SimpleLoadBal-PT-02.tgz
mv SimpleLoadBal-PT-02 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.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 '
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 ;