fond
Model Checking Contest 2024
14th edition, Geneva, Switzerland, June 25, 2024
Execution of r549-tall-171734898200293
Last Updated
July 7, 2024

About the Execution of GreatSPN+red for FireWire-PT-16

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
652.779 72524.00 94463.00 213.40 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r549-tall-171734898200293.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-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 2-5568
Executing tool greatspnxred
Input is FireWire-PT-16, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r549-tall-171734898200293
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 556K
-rw-r--r-- 1 mcc users 8.1K Jun 2 17:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 94K Jun 2 17:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.6K Jun 2 17:16 CTLFireability.txt
-rw-r--r-- 1 mcc users 37K Jun 2 17:16 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.3K Jun 2 17:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Jun 2 17:12 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Jun 2 17:12 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Jun 2 17:12 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 2 16:33 NewModel
-rw-r--r-- 1 mcc users 9.3K Jun 2 17:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 99K Jun 2 17:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Jun 2 17:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 113K Jun 2 17:16 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Jun 2 17:12 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Jun 2 17:12 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 2 16:33 equiv_col
-rw-r--r-- 1 mcc users 3 Jun 2 16:33 instance
-rw-r--r-- 1 mcc users 6 Jun 2 16:33 iscolored
-rw-r--r-- 1 mcc users 84K Jun 2 16:33 model.pnml

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

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

The expected result is a vector of positive values
NUM_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME FireWire-PT-16-UpperBounds-00
FORMULA_NAME FireWire-PT-16-UpperBounds-01
FORMULA_NAME FireWire-PT-16-UpperBounds-02
FORMULA_NAME FireWire-PT-16-UpperBounds-03
FORMULA_NAME FireWire-PT-16-UpperBounds-04
FORMULA_NAME FireWire-PT-16-UpperBounds-05
FORMULA_NAME FireWire-PT-16-UpperBounds-06
FORMULA_NAME FireWire-PT-16-UpperBounds-07
FORMULA_NAME FireWire-PT-16-UpperBounds-08
FORMULA_NAME FireWire-PT-16-UpperBounds-09
FORMULA_NAME FireWire-PT-16-UpperBounds-10
FORMULA_NAME FireWire-PT-16-UpperBounds-11
FORMULA_NAME FireWire-PT-16-UpperBounds-12
FORMULA_NAME FireWire-PT-16-UpperBounds-13
FORMULA_NAME FireWire-PT-16-UpperBounds-14
FORMULA_NAME FireWire-PT-16-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1717371513023

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FireWire-PT-16
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-06-02 23:38:34] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -timeout, 360, -rebuildPNML]
[2024-06-02 23:38:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-02 23:38:34] [INFO ] Load time of PNML (sax parser for PT used): 81 ms
[2024-06-02 23:38:34] [INFO ] Transformed 254 places.
[2024-06-02 23:38:34] [INFO ] Transformed 368 transitions.
[2024-06-02 23:38:34] [INFO ] Found NUPN structural information;
[2024-06-02 23:38:34] [INFO ] Parsed PT model containing 254 places and 368 transitions and 1032 arcs in 181 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 368 rows 254 cols
[2024-06-02 23:38:34] [INFO ] Computed 5 invariants in 29 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (2 resets) in 33 ms. (294 steps per ms)
FORMULA FireWire-PT-16-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-16-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-16-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-16-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-16-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-16-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-16-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-16-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FireWire-PT-16-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70000 steps (21 resets) in 90 ms. (769 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
[2024-06-02 23:38:34] [INFO ] Invariant cache hit.
[2024-06-02 23:38:34] [INFO ] [Real]Absence check using 5 positive place invariants in 14 ms returned sat
[2024-06-02 23:38:35] [INFO ] [Real]Absence check using state equation in 124 ms returned sat
[2024-06-02 23:38:35] [INFO ] Deduced a trap composed of 138 places in 132 ms of which 11 ms to minimize.
[2024-06-02 23:38:35] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:38:35] [INFO ] [Nat]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:35] [INFO ] [Nat]Absence check using state equation in 82 ms returned sat
[2024-06-02 23:38:35] [INFO ] Deduced a trap composed of 138 places in 100 ms of which 11 ms to minimize.
[2024-06-02 23:38:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 152 ms
[2024-06-02 23:38:35] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 24 ms.
[2024-06-02 23:38:37] [INFO ] Deduced a trap composed of 104 places in 100 ms of which 2 ms to minimize.
[2024-06-02 23:38:37] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 212 ms
[2024-06-02 23:38:37] [INFO ] Added : 297 causal constraints over 61 iterations in 2086 ms. Result :sat
Minimization took 230 ms.
[2024-06-02 23:38:37] [INFO ] [Real]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:38] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2024-06-02 23:38:38] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 23 ms.
[2024-06-02 23:38:38] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:38:38] [INFO ] [Nat]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:38] [INFO ] [Nat]Absence check using state equation in 83 ms returned sat
[2024-06-02 23:38:38] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 29 ms.
[2024-06-02 23:38:40] [INFO ] Deduced a trap composed of 93 places in 91 ms of which 2 ms to minimize.
[2024-06-02 23:38:40] [INFO ] Deduced a trap composed of 110 places in 85 ms of which 2 ms to minimize.
[2024-06-02 23:38:40] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 277 ms
[2024-06-02 23:38:40] [INFO ] Added : 300 causal constraints over 63 iterations in 2192 ms. Result :sat
Minimization took 199 ms.
[2024-06-02 23:38:40] [INFO ] [Real]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:40] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2024-06-02 23:38:41] [INFO ] Deduced a trap composed of 106 places in 86 ms of which 2 ms to minimize.
[2024-06-02 23:38:41] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:38:41] [INFO ] [Nat]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:41] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2024-06-02 23:38:41] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 23 ms.
[2024-06-02 23:38:43] [INFO ] Deduced a trap composed of 76 places in 106 ms of which 2 ms to minimize.
[2024-06-02 23:38:43] [INFO ] Deduced a trap composed of 123 places in 78 ms of which 2 ms to minimize.
[2024-06-02 23:38:43] [INFO ] Deduced a trap composed of 115 places in 79 ms of which 2 ms to minimize.
[2024-06-02 23:38:43] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 426 ms
[2024-06-02 23:38:43] [INFO ] Added : 311 causal constraints over 63 iterations in 2407 ms. Result :sat
Minimization took 236 ms.
[2024-06-02 23:38:43] [INFO ] [Real]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:44] [INFO ] [Real]Absence check using state equation in 93 ms returned sat
[2024-06-02 23:38:44] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 25 ms.
[2024-06-02 23:38:44] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:38:44] [INFO ] [Nat]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:44] [INFO ] [Nat]Absence check using state equation in 94 ms returned sat
[2024-06-02 23:38:44] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 23 ms.
[2024-06-02 23:38:46] [INFO ] Deduced a trap composed of 98 places in 84 ms of which 2 ms to minimize.
[2024-06-02 23:38:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 151 ms
[2024-06-02 23:38:46] [INFO ] Added : 314 causal constraints over 63 iterations in 2074 ms. Result :sat
Minimization took 180 ms.
[2024-06-02 23:38:46] [INFO ] [Real]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:46] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2024-06-02 23:38:46] [INFO ] Deduced a trap composed of 106 places in 88 ms of which 1 ms to minimize.
[2024-06-02 23:38:46] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:38:46] [INFO ] [Nat]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:47] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2024-06-02 23:38:47] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 23 ms.
[2024-06-02 23:38:49] [INFO ] Deduced a trap composed of 89 places in 90 ms of which 2 ms to minimize.
[2024-06-02 23:38:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 154 ms
[2024-06-02 23:38:49] [INFO ] Added : 316 causal constraints over 64 iterations in 2181 ms. Result :sat
Minimization took 212 ms.
[2024-06-02 23:38:49] [INFO ] [Real]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:49] [INFO ] [Real]Absence check using state equation in 95 ms returned sat
[2024-06-02 23:38:49] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 22 ms.
[2024-06-02 23:38:49] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:38:49] [INFO ] [Nat]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:49] [INFO ] [Nat]Absence check using state equation in 90 ms returned sat
[2024-06-02 23:38:49] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 25 ms.
[2024-06-02 23:38:51] [INFO ] Deduced a trap composed of 94 places in 91 ms of which 2 ms to minimize.
[2024-06-02 23:38:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 147 ms
[2024-06-02 23:38:51] [INFO ] Added : 285 causal constraints over 58 iterations in 1930 ms. Result :sat
Minimization took 225 ms.
[2024-06-02 23:38:52] [INFO ] [Real]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:52] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2024-06-02 23:38:52] [INFO ] Deduced a trap composed of 109 places in 94 ms of which 2 ms to minimize.
[2024-06-02 23:38:52] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:38:52] [INFO ] [Nat]Absence check using 5 positive place invariants in 5 ms returned sat
[2024-06-02 23:38:52] [INFO ] [Nat]Absence check using state equation in 95 ms returned sat
[2024-06-02 23:38:52] [INFO ] Computed and/alt/rep : 328/806/328 causal constraints (skipped 39 transitions) in 21 ms.
[2024-06-02 23:38:54] [INFO ] Deduced a trap composed of 99 places in 86 ms of which 2 ms to minimize.
[2024-06-02 23:38:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 144 ms
[2024-06-02 23:38:54] [INFO ] Added : 279 causal constraints over 56 iterations in 1757 ms. Result :sat
Minimization took 179 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
Support contains 7 out of 254 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 254/254 places, 368/368 transitions.
Graph (trivial) has 208 edges and 254 vertex of which 19 / 254 are part of one of the 3 SCC in 4 ms
Free SCC test removed 16 places
Drop transitions (Empty/Sink Transition effects.) removed 20 transitions
Reduce isomorphic transitions removed 20 transitions.
Graph (complete) has 581 edges and 238 vertex of which 235 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.2 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 71 transitions
Trivial Post-agglo rules discarded 71 transitions
Performed 71 trivial Post agglomeration. Transition count delta: 71
Iterating post reduction 0 with 72 rules applied. Total rules applied 74 place count 235 transition count 276
Reduce places removed 71 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 1 with 74 rules applied. Total rules applied 148 place count 164 transition count 273
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 150 place count 162 transition count 273
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 4 Pre rules applied. Total rules applied 150 place count 162 transition count 269
Deduced a syphon composed of 4 places in 2 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 158 place count 158 transition count 269
Discarding 28 places :
Symmetric choice reduction at 3 with 28 rule applications. Total rules 186 place count 130 transition count 240
Iterating global reduction 3 with 28 rules applied. Total rules applied 214 place count 130 transition count 240
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 215 place count 130 transition count 239
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 6 Pre rules applied. Total rules applied 215 place count 130 transition count 233
Deduced a syphon composed of 6 places in 2 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 4 with 12 rules applied. Total rules applied 227 place count 124 transition count 233
Discarding 4 places :
Symmetric choice reduction at 4 with 4 rule applications. Total rules 231 place count 120 transition count 210
Iterating global reduction 4 with 4 rules applied. Total rules applied 235 place count 120 transition count 210
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 236 place count 120 transition count 209
Performed 18 Post agglomeration using F-continuation condition.Transition count delta: 18
Deduced a syphon composed of 18 places in 1 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 5 with 36 rules applied. Total rules applied 272 place count 102 transition count 191
Performed 16 Post agglomeration using F-continuation condition.Transition count delta: -49
Deduced a syphon composed of 16 places in 0 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 5 with 32 rules applied. Total rules applied 304 place count 86 transition count 240
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 306 place count 86 transition count 238
Drop transitions (Redundant composition of simpler transitions.) removed 14 transitions
Redundant transition composition rules discarded 14 transitions
Iterating global reduction 6 with 14 rules applied. Total rules applied 320 place count 86 transition count 224
Free-agglomeration rule applied 14 times.
Iterating global reduction 6 with 14 rules applied. Total rules applied 334 place count 86 transition count 210
Reduce places removed 14 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 6 with 16 rules applied. Total rules applied 350 place count 72 transition count 208
Drop transitions (Redundant composition of simpler transitions.) removed 25 transitions
Redundant transition composition rules discarded 25 transitions
Iterating global reduction 7 with 25 rules applied. Total rules applied 375 place count 72 transition count 183
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 7 with 1 rules applied. Total rules applied 376 place count 72 transition count 183
Applied a total of 376 rules in 116 ms. Remains 72 /254 variables (removed 182) and now considering 183/368 (removed 185) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 126 ms. Remains : 72/254 places, 183/368 transitions.
[2024-06-02 23:38:56] [INFO ] Flow matrix only has 166 transitions (discarded 17 similar events)
// Phase 1: matrix 166 rows 72 cols
[2024-06-02 23:38:56] [INFO ] Computed 4 invariants in 4 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 1000000 steps (99524 resets) in 710 ms. (1406 steps per ms)
FORMULA FireWire-PT-16-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 6000002 steps (219881 resets) in 1856 ms. (3231 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1]
[2024-06-02 23:38:59] [INFO ] Flow matrix only has 166 transitions (discarded 17 similar events)
[2024-06-02 23:38:59] [INFO ] Invariant cache hit.
[2024-06-02 23:38:59] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:38:59] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2024-06-02 23:38:59] [INFO ] State equation strengthened by 25 read => feed constraints.
[2024-06-02 23:38:59] [INFO ] [Real]Added 25 Read/Feed constraints in 9 ms returned sat
[2024-06-02 23:38:59] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:38:59] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:38:59] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
[2024-06-02 23:38:59] [INFO ] [Nat]Added 25 Read/Feed constraints in 20 ms returned sat
[2024-06-02 23:38:59] [INFO ] Deduced a trap composed of 22 places in 55 ms of which 1 ms to minimize.
[2024-06-02 23:38:59] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 67 ms
[2024-06-02 23:38:59] [INFO ] Computed and/alt/rep : 109/602/109 causal constraints (skipped 55 transitions) in 9 ms.
[2024-06-02 23:38:59] [INFO ] Deduced a trap composed of 23 places in 57 ms of which 1 ms to minimize.
[2024-06-02 23:38:59] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 74 ms
[2024-06-02 23:38:59] [INFO ] Added : 25 causal constraints over 7 iterations in 165 ms. Result :sat
Minimization took 53 ms.
[2024-06-02 23:39:00] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Real]Added 25 Read/Feed constraints in 7 ms returned sat
[2024-06-02 23:39:00] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:00] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Nat]Added 25 Read/Feed constraints in 6 ms returned sat
[2024-06-02 23:39:00] [INFO ] Deduced a trap composed of 15 places in 50 ms of which 1 ms to minimize.
[2024-06-02 23:39:00] [INFO ] Deduced a trap composed of 27 places in 43 ms of which 1 ms to minimize.
[2024-06-02 23:39:00] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 116 ms
[2024-06-02 23:39:00] [INFO ] Computed and/alt/rep : 109/602/109 causal constraints (skipped 55 transitions) in 11 ms.
[2024-06-02 23:39:00] [INFO ] Added : 15 causal constraints over 3 iterations in 55 ms. Result :sat
Minimization took 57 ms.
[2024-06-02 23:39:00] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Real]Added 25 Read/Feed constraints in 8 ms returned sat
[2024-06-02 23:39:00] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:00] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Nat]Added 25 Read/Feed constraints in 5 ms returned sat
[2024-06-02 23:39:00] [INFO ] Computed and/alt/rep : 109/602/109 causal constraints (skipped 55 transitions) in 9 ms.
[2024-06-02 23:39:00] [INFO ] Added : 54 causal constraints over 11 iterations in 147 ms. Result :sat
Minimization took 62 ms.
[2024-06-02 23:39:00] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Real]Absence check using state equation in 31 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Real]Added 25 Read/Feed constraints in 6 ms returned sat
[2024-06-02 23:39:00] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:00] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2024-06-02 23:39:00] [INFO ] [Nat]Added 25 Read/Feed constraints in 11 ms returned sat
[2024-06-02 23:39:00] [INFO ] Deduced a trap composed of 15 places in 45 ms of which 1 ms to minimize.
[2024-06-02 23:39:00] [INFO ] Deduced a trap composed of 40 places in 40 ms of which 1 ms to minimize.
[2024-06-02 23:39:00] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 102 ms
[2024-06-02 23:39:00] [INFO ] Computed and/alt/rep : 109/602/109 causal constraints (skipped 55 transitions) in 10 ms.
[2024-06-02 23:39:01] [INFO ] Added : 61 causal constraints over 13 iterations in 181 ms. Result :sat
Minimization took 74 ms.
[2024-06-02 23:39:01] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:01] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2024-06-02 23:39:01] [INFO ] [Real]Added 25 Read/Feed constraints in 8 ms returned sat
[2024-06-02 23:39:01] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:01] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:01] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2024-06-02 23:39:01] [INFO ] [Nat]Added 25 Read/Feed constraints in 6 ms returned sat
[2024-06-02 23:39:01] [INFO ] Deduced a trap composed of 15 places in 51 ms of which 1 ms to minimize.
[2024-06-02 23:39:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 63 ms
[2024-06-02 23:39:01] [INFO ] Computed and/alt/rep : 109/602/109 causal constraints (skipped 55 transitions) in 11 ms.
[2024-06-02 23:39:01] [INFO ] Added : 52 causal constraints over 11 iterations in 168 ms. Result :sat
Minimization took 79 ms.
[2024-06-02 23:39:01] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:01] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2024-06-02 23:39:01] [INFO ] [Real]Added 25 Read/Feed constraints in 8 ms returned sat
[2024-06-02 23:39:01] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:01] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:01] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2024-06-02 23:39:01] [INFO ] [Nat]Added 25 Read/Feed constraints in 6 ms returned sat
[2024-06-02 23:39:01] [INFO ] Deduced a trap composed of 15 places in 49 ms of which 1 ms to minimize.
[2024-06-02 23:39:01] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 66 ms
[2024-06-02 23:39:01] [INFO ] Computed and/alt/rep : 109/602/109 causal constraints (skipped 55 transitions) in 15 ms.
[2024-06-02 23:39:02] [INFO ] Added : 56 causal constraints over 12 iterations in 204 ms. Result :sat
Minimization took 69 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1]
FORMULA FireWire-PT-16-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 0, 1, 0, 0] Max Struct:[1, 1, 1, 1, 1]
Support contains 5 out of 72 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 72/72 places, 183/183 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 72 transition count 182
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 71 transition count 182
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 71 transition count 180
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 5 place count 70 transition count 176
Iterating global reduction 1 with 1 rules applied. Total rules applied 6 place count 70 transition count 176
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 70 transition count 175
Applied a total of 7 rules in 18 ms. Remains 70 /72 variables (removed 2) and now considering 175/183 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 70/72 places, 175/183 transitions.
[2024-06-02 23:39:02] [INFO ] Flow matrix only has 158 transitions (discarded 17 similar events)
// Phase 1: matrix 158 rows 70 cols
[2024-06-02 23:39:02] [INFO ] Computed 4 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 0, 1, 0, 0] Max Struct:[1, 1, 1, 1, 1]
FORMULA FireWire-PT-16-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FireWire-PT-16-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (99714 resets) in 609 ms. (1639 steps per ms)
BEST_FIRST walk for 3000002 steps (109752 resets) in 850 ms. (3525 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
[2024-06-02 23:39:03] [INFO ] Flow matrix only has 158 transitions (discarded 17 similar events)
[2024-06-02 23:39:03] [INFO ] Invariant cache hit.
[2024-06-02 23:39:03] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:03] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2024-06-02 23:39:03] [INFO ] State equation strengthened by 24 read => feed constraints.
[2024-06-02 23:39:03] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2024-06-02 23:39:03] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:03] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:03] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2024-06-02 23:39:03] [INFO ] [Nat]Added 24 Read/Feed constraints in 14 ms returned sat
[2024-06-02 23:39:03] [INFO ] Deduced a trap composed of 15 places in 47 ms of which 1 ms to minimize.
[2024-06-02 23:39:04] [INFO ] Deduced a trap composed of 25 places in 49 ms of which 1 ms to minimize.
[2024-06-02 23:39:04] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 132 ms
[2024-06-02 23:39:04] [INFO ] Computed and/alt/rep : 103/573/103 causal constraints (skipped 53 transitions) in 11 ms.
[2024-06-02 23:39:04] [INFO ] Added : 49 causal constraints over 11 iterations in 155 ms. Result :sat
Minimization took 64 ms.
[2024-06-02 23:39:04] [INFO ] [Real]Absence check using 4 positive place invariants in 7 ms returned sat
[2024-06-02 23:39:04] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2024-06-02 23:39:04] [INFO ] [Real]Added 24 Read/Feed constraints in 9 ms returned sat
[2024-06-02 23:39:04] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:04] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:04] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2024-06-02 23:39:04] [INFO ] [Nat]Added 24 Read/Feed constraints in 9 ms returned sat
[2024-06-02 23:39:04] [INFO ] Computed and/alt/rep : 103/573/103 causal constraints (skipped 53 transitions) in 17 ms.
[2024-06-02 23:39:04] [INFO ] Deduced a trap composed of 26 places in 50 ms of which 1 ms to minimize.
[2024-06-02 23:39:04] [INFO ] Deduced a trap composed of 26 places in 98 ms of which 1 ms to minimize.
[2024-06-02 23:39:04] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 197 ms
[2024-06-02 23:39:04] [INFO ] Added : 37 causal constraints over 9 iterations in 326 ms. Result :sat
Minimization took 56 ms.
[2024-06-02 23:39:04] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:04] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2024-06-02 23:39:04] [INFO ] [Real]Added 24 Read/Feed constraints in 8 ms returned sat
[2024-06-02 23:39:04] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:04] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:04] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2024-06-02 23:39:04] [INFO ] [Nat]Added 24 Read/Feed constraints in 11 ms returned sat
[2024-06-02 23:39:04] [INFO ] Computed and/alt/rep : 103/573/103 causal constraints (skipped 53 transitions) in 14 ms.
[2024-06-02 23:39:05] [INFO ] Deduced a trap composed of 15 places in 48 ms of which 1 ms to minimize.
[2024-06-02 23:39:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 69 ms
[2024-06-02 23:39:05] [INFO ] Added : 84 causal constraints over 18 iterations in 309 ms. Result :sat
Minimization took 80 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Support contains 3 out of 70 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 70/70 places, 175/175 transitions.
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 2 Pre rules applied. Total rules applied 0 place count 70 transition count 173
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 68 transition count 173
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -6
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 6 place count 67 transition count 179
Applied a total of 6 rules in 12 ms. Remains 67 /70 variables (removed 3) and now considering 179/175 (removed -4) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 67/70 places, 179/175 transitions.
[2024-06-02 23:39:05] [INFO ] Flow matrix only has 162 transitions (discarded 17 similar events)
// Phase 1: matrix 162 rows 67 cols
[2024-06-02 23:39:05] [INFO ] Computed 4 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
RANDOM walk for 1000000 steps (99450 resets) in 692 ms. (1443 steps per ms)
FORMULA FireWire-PT-16-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 2000002 steps (73232 resets) in 597 ms. (3344 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2024-06-02 23:39:06] [INFO ] Flow matrix only has 162 transitions (discarded 17 similar events)
[2024-06-02 23:39:06] [INFO ] Invariant cache hit.
[2024-06-02 23:39:06] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:06] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2024-06-02 23:39:06] [INFO ] State equation strengthened by 32 read => feed constraints.
[2024-06-02 23:39:06] [INFO ] [Real]Added 32 Read/Feed constraints in 7 ms returned sat
[2024-06-02 23:39:06] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:06] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:06] [INFO ] [Nat]Absence check using state equation in 27 ms returned sat
[2024-06-02 23:39:06] [INFO ] [Nat]Added 32 Read/Feed constraints in 9 ms returned sat
[2024-06-02 23:39:06] [INFO ] Computed and/alt/rep : 77/429/77 causal constraints (skipped 83 transitions) in 10 ms.
[2024-06-02 23:39:07] [INFO ] Deduced a trap composed of 24 places in 49 ms of which 1 ms to minimize.
[2024-06-02 23:39:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 69 ms
[2024-06-02 23:39:07] [INFO ] Added : 27 causal constraints over 6 iterations in 155 ms. Result :sat
Minimization took 42 ms.
[2024-06-02 23:39:07] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:07] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2024-06-02 23:39:07] [INFO ] [Real]Added 32 Read/Feed constraints in 7 ms returned sat
[2024-06-02 23:39:07] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:07] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:07] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2024-06-02 23:39:07] [INFO ] [Nat]Added 32 Read/Feed constraints in 6 ms returned sat
[2024-06-02 23:39:07] [INFO ] Deduced a trap composed of 23 places in 39 ms of which 0 ms to minimize.
[2024-06-02 23:39:07] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 55 ms
[2024-06-02 23:39:07] [INFO ] Computed and/alt/rep : 77/429/77 causal constraints (skipped 83 transitions) in 10 ms.
[2024-06-02 23:39:07] [INFO ] Added : 37 causal constraints over 11 iterations in 144 ms. Result :sat
Minimization took 46 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 67 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 67/67 places, 179/179 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 67 transition count 178
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 66 transition count 178
Applied a total of 2 rules in 6 ms. Remains 66 /67 variables (removed 1) and now considering 178/179 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 66/67 places, 178/179 transitions.
[2024-06-02 23:39:07] [INFO ] Flow matrix only has 161 transitions (discarded 17 similar events)
// Phase 1: matrix 161 rows 66 cols
[2024-06-02 23:39:07] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (99549 resets) in 615 ms. (1623 steps per ms)
BEST_FIRST walk for 2000002 steps (73040 resets) in 573 ms. (3484 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2024-06-02 23:39:08] [INFO ] Flow matrix only has 161 transitions (discarded 17 similar events)
[2024-06-02 23:39:08] [INFO ] Invariant cache hit.
[2024-06-02 23:39:08] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:08] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2024-06-02 23:39:08] [INFO ] State equation strengthened by 32 read => feed constraints.
[2024-06-02 23:39:08] [INFO ] [Real]Added 32 Read/Feed constraints in 11 ms returned sat
[2024-06-02 23:39:08] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:08] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:08] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2024-06-02 23:39:08] [INFO ] [Nat]Added 32 Read/Feed constraints in 13 ms returned sat
[2024-06-02 23:39:08] [INFO ] Computed and/alt/rep : 76/428/76 causal constraints (skipped 83 transitions) in 11 ms.
[2024-06-02 23:39:09] [INFO ] Deduced a trap composed of 24 places in 43 ms of which 0 ms to minimize.
[2024-06-02 23:39:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 58 ms
[2024-06-02 23:39:09] [INFO ] Added : 47 causal constraints over 10 iterations in 198 ms. Result :sat
Minimization took 55 ms.
[2024-06-02 23:39:09] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:09] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2024-06-02 23:39:09] [INFO ] [Real]Added 32 Read/Feed constraints in 10 ms returned sat
[2024-06-02 23:39:09] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:09] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:09] [INFO ] [Nat]Absence check using state equation in 32 ms returned sat
[2024-06-02 23:39:09] [INFO ] [Nat]Added 32 Read/Feed constraints in 11 ms returned sat
[2024-06-02 23:39:09] [INFO ] Computed and/alt/rep : 76/428/76 causal constraints (skipped 83 transitions) in 11 ms.
[2024-06-02 23:39:09] [INFO ] Deduced a trap composed of 13 places in 47 ms of which 1 ms to minimize.
[2024-06-02 23:39:09] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 67 ms
[2024-06-02 23:39:09] [INFO ] Added : 48 causal constraints over 10 iterations in 226 ms. Result :sat
Minimization took 48 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 66 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 66/66 places, 178/178 transitions.
Applied a total of 0 rules in 6 ms. Remains 66 /66 variables (removed 0) and now considering 178/178 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 66/66 places, 178/178 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 66/66 places, 178/178 transitions.
Applied a total of 0 rules in 5 ms. Remains 66 /66 variables (removed 0) and now considering 178/178 (removed 0) transitions.
[2024-06-02 23:39:09] [INFO ] Flow matrix only has 161 transitions (discarded 17 similar events)
[2024-06-02 23:39:09] [INFO ] Invariant cache hit.
[2024-06-02 23:39:09] [INFO ] Implicit Places using invariants in 53 ms returned []
[2024-06-02 23:39:09] [INFO ] Flow matrix only has 161 transitions (discarded 17 similar events)
[2024-06-02 23:39:09] [INFO ] Invariant cache hit.
[2024-06-02 23:39:09] [INFO ] State equation strengthened by 32 read => feed constraints.
[2024-06-02 23:39:09] [INFO ] Implicit Places using invariants and state equation in 94 ms returned []
Implicit Place search using SMT with State Equation took 150 ms to find 0 implicit places.
[2024-06-02 23:39:09] [INFO ] Redundant transitions in 4 ms returned []
Running 176 sub problems to find dead transitions.
[2024-06-02 23:39:09] [INFO ] Flow matrix only has 161 transitions (discarded 17 similar events)
[2024-06-02 23:39:09] [INFO ] Invariant cache hit.
[2024-06-02 23:39:09] [INFO ] State equation strengthened by 32 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/65 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 176 unsolved
At refinement iteration 1 (OVERLAPS) 1/66 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 176 unsolved
[2024-06-02 23:39:10] [INFO ] Deduced a trap composed of 38 places in 55 ms of which 1 ms to minimize.
[2024-06-02 23:39:10] [INFO ] Deduced a trap composed of 16 places in 42 ms of which 0 ms to minimize.
Problem TDEAD10 is UNSAT
Problem TDEAD12 is UNSAT
Problem TDEAD13 is UNSAT
Problem TDEAD14 is UNSAT
Problem TDEAD15 is UNSAT
Problem TDEAD16 is UNSAT
Problem TDEAD18 is UNSAT
[2024-06-02 23:39:10] [INFO ] Deduced a trap composed of 24 places in 49 ms of which 1 ms to minimize.
Problem TDEAD63 is UNSAT
Problem TDEAD64 is UNSAT
[2024-06-02 23:39:10] [INFO ] Deduced a trap composed of 46 places in 38 ms of which 1 ms to minimize.
Problem TDEAD107 is UNSAT
Problem TDEAD146 is UNSAT
Problem TDEAD160 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 4/8 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/66 variables, 0/8 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 4 (OVERLAPS) 161/227 variables, 66/74 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/227 variables, 32/106 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/227 variables, 0/106 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 7 (OVERLAPS) 0/227 variables, 0/106 constraints. Problems are: Problem set: 12 solved, 164 unsolved
No progress, stopping.
After SMT solving in domain Real declared 227/227 variables, and 106 constraints, problems are : Problem set: 12 solved, 164 unsolved in 3549 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 66/66 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 176/176 constraints, Known Traps: 4/4 constraints]
Escalating to Integer solving :Problem set: 12 solved, 164 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/65 variables, 0/0 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 1 (OVERLAPS) 1/66 variables, 4/4 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 4/8 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/66 variables, 0/8 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 4 (OVERLAPS) 161/227 variables, 66/74 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/227 variables, 32/106 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/227 variables, 164/270 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/227 variables, 0/270 constraints. Problems are: Problem set: 12 solved, 164 unsolved
At refinement iteration 8 (OVERLAPS) 0/227 variables, 0/270 constraints. Problems are: Problem set: 12 solved, 164 unsolved
No progress, stopping.
After SMT solving in domain Int declared 227/227 variables, and 270 constraints, problems are : Problem set: 12 solved, 164 unsolved in 4474 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 66/66 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 164/176 constraints, Known Traps: 4/4 constraints]
After SMT, in 8151ms problems are : Problem set: 12 solved, 164 unsolved
Search for dead transitions found 12 dead transitions in 8161ms
Found 12 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 12 transitions
Dead transitions reduction (with SMT) removed 12 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 66/66 places, 166/178 transitions.
Applied a total of 0 rules in 9 ms. Remains 66 /66 variables (removed 0) and now considering 166/166 (removed 0) transitions.
[2024-06-02 23:39:17] [INFO ] Redundant transitions in 5 ms returned []
Finished structural reductions in REACHABILITY mode , in 2 iterations and 8355 ms. Remains : 66/66 places, 166/178 transitions.
[2024-06-02 23:39:17] [INFO ] Flow matrix only has 149 transitions (discarded 17 similar events)
// Phase 1: matrix 149 rows 66 cols
[2024-06-02 23:39:17] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (99472 resets) in 607 ms. (1644 steps per ms)
BEST_FIRST walk for 2000000 steps (73266 resets) in 579 ms. (3448 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2024-06-02 23:39:19] [INFO ] Flow matrix only has 149 transitions (discarded 17 similar events)
[2024-06-02 23:39:19] [INFO ] Invariant cache hit.
[2024-06-02 23:39:19] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:19] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2024-06-02 23:39:19] [INFO ] State equation strengthened by 32 read => feed constraints.
[2024-06-02 23:39:19] [INFO ] [Real]Added 32 Read/Feed constraints in 6 ms returned sat
[2024-06-02 23:39:19] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:19] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:19] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2024-06-02 23:39:19] [INFO ] [Nat]Added 32 Read/Feed constraints in 5 ms returned sat
[2024-06-02 23:39:19] [INFO ] Deduced a trap composed of 13 places in 46 ms of which 1 ms to minimize.
[2024-06-02 23:39:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 60 ms
[2024-06-02 23:39:19] [INFO ] Computed and/alt/rep : 76/386/76 causal constraints (skipped 71 transitions) in 10 ms.
[2024-06-02 23:39:19] [INFO ] Added : 46 causal constraints over 10 iterations in 118 ms. Result :sat
Minimization took 46 ms.
[2024-06-02 23:39:19] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:19] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2024-06-02 23:39:19] [INFO ] [Real]Added 32 Read/Feed constraints in 6 ms returned sat
[2024-06-02 23:39:19] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:19] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:19] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2024-06-02 23:39:19] [INFO ] [Nat]Added 32 Read/Feed constraints in 5 ms returned sat
[2024-06-02 23:39:19] [INFO ] Deduced a trap composed of 13 places in 48 ms of which 1 ms to minimize.
[2024-06-02 23:39:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 56 ms
[2024-06-02 23:39:19] [INFO ] Computed and/alt/rep : 76/386/76 causal constraints (skipped 71 transitions) in 10 ms.
[2024-06-02 23:39:19] [INFO ] Added : 51 causal constraints over 11 iterations in 132 ms. Result :sat
Minimization took 50 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0] Max Struct:[1, 1]
Support contains 2 out of 66 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 66/66 places, 166/166 transitions.
Applied a total of 0 rules in 3 ms. Remains 66 /66 variables (removed 0) and now considering 166/166 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 66/66 places, 166/166 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 66/66 places, 166/166 transitions.
Applied a total of 0 rules in 4 ms. Remains 66 /66 variables (removed 0) and now considering 166/166 (removed 0) transitions.
[2024-06-02 23:39:19] [INFO ] Flow matrix only has 149 transitions (discarded 17 similar events)
[2024-06-02 23:39:19] [INFO ] Invariant cache hit.
[2024-06-02 23:39:19] [INFO ] Implicit Places using invariants in 48 ms returned []
[2024-06-02 23:39:19] [INFO ] Flow matrix only has 149 transitions (discarded 17 similar events)
[2024-06-02 23:39:19] [INFO ] Invariant cache hit.
[2024-06-02 23:39:19] [INFO ] State equation strengthened by 32 read => feed constraints.
[2024-06-02 23:39:20] [INFO ] Implicit Places using invariants and state equation in 108 ms returned []
Implicit Place search using SMT with State Equation took 157 ms to find 0 implicit places.
[2024-06-02 23:39:20] [INFO ] Redundant transitions in 5 ms returned []
Running 164 sub problems to find dead transitions.
[2024-06-02 23:39:20] [INFO ] Flow matrix only has 149 transitions (discarded 17 similar events)
[2024-06-02 23:39:20] [INFO ] Invariant cache hit.
[2024-06-02 23:39:20] [INFO ] State equation strengthened by 32 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/65 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 164 unsolved
At refinement iteration 1 (OVERLAPS) 1/66 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 164 unsolved
[2024-06-02 23:39:20] [INFO ] Deduced a trap composed of 27 places in 43 ms of which 1 ms to minimize.
[2024-06-02 23:39:20] [INFO ] Deduced a trap composed of 16 places in 46 ms of which 1 ms to minimize.
Problem TDEAD13 is UNSAT
[2024-06-02 23:39:20] [INFO ] Deduced a trap composed of 40 places in 35 ms of which 0 ms to minimize.
[2024-06-02 23:39:20] [INFO ] Deduced a trap composed of 38 places in 40 ms of which 1 ms to minimize.
Problem TDEAD32 is UNSAT
Problem TDEAD33 is UNSAT
Problem TDEAD34 is UNSAT
Problem TDEAD35 is UNSAT
Problem TDEAD40 is UNSAT
Problem TDEAD41 is UNSAT
Problem TDEAD42 is UNSAT
Problem TDEAD43 is UNSAT
Problem TDEAD44 is UNSAT
Problem TDEAD45 is UNSAT
Problem TDEAD46 is UNSAT
Problem TDEAD47 is UNSAT
Problem TDEAD85 is UNSAT
Problem TDEAD86 is UNSAT
Problem TDEAD87 is UNSAT
Problem TDEAD88 is UNSAT
[2024-06-02 23:39:21] [INFO ] Deduced a trap composed of 37 places in 47 ms of which 1 ms to minimize.
Problem TDEAD118 is UNSAT
Problem TDEAD150 is UNSAT
Problem TDEAD151 is UNSAT
Problem TDEAD152 is UNSAT
Problem TDEAD153 is UNSAT
Problem TDEAD154 is UNSAT
Problem TDEAD155 is UNSAT
Problem TDEAD156 is UNSAT
Problem TDEAD157 is UNSAT
Problem TDEAD158 is UNSAT
Problem TDEAD159 is UNSAT
Problem TDEAD162 is UNSAT
Problem TDEAD163 is UNSAT
Problem TDEAD164 is UNSAT
Problem TDEAD165 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 5/9 constraints. Problems are: Problem set: 32 solved, 132 unsolved
[2024-06-02 23:39:21] [INFO ] Deduced a trap composed of 23 places in 44 ms of which 1 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/66 variables, 1/10 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/66 variables, 0/10 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 5 (OVERLAPS) 149/215 variables, 66/76 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/215 variables, 32/108 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/215 variables, 0/108 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 8 (OVERLAPS) 0/215 variables, 0/108 constraints. Problems are: Problem set: 32 solved, 132 unsolved
No progress, stopping.
After SMT solving in domain Real declared 215/215 variables, and 108 constraints, problems are : Problem set: 32 solved, 132 unsolved in 3077 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 66/66 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 164/164 constraints, Known Traps: 6/6 constraints]
Escalating to Integer solving :Problem set: 32 solved, 132 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/65 variables, 0/0 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 1 (OVERLAPS) 1/66 variables, 4/4 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 6/10 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/66 variables, 0/10 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 4 (OVERLAPS) 149/215 variables, 66/76 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/215 variables, 32/108 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/215 variables, 132/240 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/215 variables, 0/240 constraints. Problems are: Problem set: 32 solved, 132 unsolved
At refinement iteration 8 (OVERLAPS) 0/215 variables, 0/240 constraints. Problems are: Problem set: 32 solved, 132 unsolved
No progress, stopping.
After SMT solving in domain Int declared 215/215 variables, and 240 constraints, problems are : Problem set: 32 solved, 132 unsolved in 4262 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 66/66 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 132/164 constraints, Known Traps: 6/6 constraints]
After SMT, in 7415ms problems are : Problem set: 32 solved, 132 unsolved
Search for dead transitions found 32 dead transitions in 7417ms
Found 32 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 32 transitions
Dead transitions reduction (with SMT) removed 32 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 66/66 places, 134/166 transitions.
Applied a total of 0 rules in 15 ms. Remains 66 /66 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2024-06-02 23:39:27] [INFO ] Redundant transitions in 1 ms returned []
Finished structural reductions in REACHABILITY mode , in 2 iterations and 7615 ms. Remains : 66/66 places, 134/166 transitions.
[2024-06-02 23:39:27] [INFO ] Flow matrix only has 117 transitions (discarded 17 similar events)
// Phase 1: matrix 117 rows 66 cols
[2024-06-02 23:39:27] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0] Max Struct:[1, 1]
RANDOM walk for 1000000 steps (99636 resets) in 616 ms. (1620 steps per ms)
BEST_FIRST walk for 2000000 steps (73328 resets) in 579 ms. (3448 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2024-06-02 23:39:28] [INFO ] Flow matrix only has 117 transitions (discarded 17 similar events)
[2024-06-02 23:39:28] [INFO ] Invariant cache hit.
[2024-06-02 23:39:28] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:28] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2024-06-02 23:39:28] [INFO ] State equation strengthened by 25 read => feed constraints.
[2024-06-02 23:39:28] [INFO ] [Real]Added 25 Read/Feed constraints in 4 ms returned sat
[2024-06-02 23:39:28] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:28] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:28] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2024-06-02 23:39:28] [INFO ] [Nat]Added 25 Read/Feed constraints in 5 ms returned sat
[2024-06-02 23:39:28] [INFO ] Deduced a trap composed of 13 places in 40 ms of which 0 ms to minimize.
[2024-06-02 23:39:28] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 50 ms
[2024-06-02 23:39:28] [INFO ] Computed and/alt/rep : 71/362/71 causal constraints (skipped 44 transitions) in 7 ms.
[2024-06-02 23:39:28] [INFO ] Added : 44 causal constraints over 9 iterations in 89 ms. Result :sat
Minimization took 56 ms.
[2024-06-02 23:39:29] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:29] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2024-06-02 23:39:29] [INFO ] [Real]Added 25 Read/Feed constraints in 4 ms returned sat
[2024-06-02 23:39:29] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:29] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:29] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2024-06-02 23:39:29] [INFO ] [Nat]Added 25 Read/Feed constraints in 4 ms returned sat
[2024-06-02 23:39:29] [INFO ] Computed and/alt/rep : 71/362/71 causal constraints (skipped 44 transitions) in 7 ms.
[2024-06-02 23:39:29] [INFO ] Added : 44 causal constraints over 9 iterations in 97 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
FORMULA FireWire-PT-16-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 66 places. Attempting structural reductions.
Drop transitions (Removing consumers from one bounded place p88) removed 3 transitions
Starting structural reductions in REACHABILITY mode, iteration 0 : 66/66 places, 131/131 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 65 transition count 132
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 0 with 3 rules applied. Total rules applied 5 place count 65 transition count 129
Applied a total of 5 rules in 9 ms. Remains 65 /66 variables (removed 1) and now considering 129/131 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 65/66 places, 129/131 transitions.
[2024-06-02 23:39:29] [INFO ] Flow matrix only has 112 transitions (discarded 17 similar events)
// Phase 1: matrix 112 rows 65 cols
[2024-06-02 23:39:29] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (99715 resets) in 552 ms. (1808 steps per ms)
BEST_FIRST walk for 1000001 steps (36594 resets) in 269 ms. (3703 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2024-06-02 23:39:30] [INFO ] Flow matrix only has 112 transitions (discarded 17 similar events)
[2024-06-02 23:39:30] [INFO ] Invariant cache hit.
[2024-06-02 23:39:30] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:30] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2024-06-02 23:39:30] [INFO ] State equation strengthened by 24 read => feed constraints.
[2024-06-02 23:39:30] [INFO ] [Real]Added 24 Read/Feed constraints in 5 ms returned sat
[2024-06-02 23:39:30] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:30] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:30] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2024-06-02 23:39:30] [INFO ] [Nat]Added 24 Read/Feed constraints in 5 ms returned sat
[2024-06-02 23:39:30] [INFO ] Deduced a trap composed of 13 places in 47 ms of which 1 ms to minimize.
[2024-06-02 23:39:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 54 ms
[2024-06-02 23:39:30] [INFO ] Computed and/alt/rep : 68/359/68 causal constraints (skipped 42 transitions) in 7 ms.
[2024-06-02 23:39:30] [INFO ] Added : 7 causal constraints over 4 iterations in 37 ms. Result :sat
Minimization took 24 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 65 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 65/65 places, 129/129 transitions.
Applied a total of 0 rules in 3 ms. Remains 65 /65 variables (removed 0) and now considering 129/129 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 65/65 places, 129/129 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 65/65 places, 129/129 transitions.
Applied a total of 0 rules in 3 ms. Remains 65 /65 variables (removed 0) and now considering 129/129 (removed 0) transitions.
[2024-06-02 23:39:30] [INFO ] Flow matrix only has 112 transitions (discarded 17 similar events)
[2024-06-02 23:39:30] [INFO ] Invariant cache hit.
[2024-06-02 23:39:30] [INFO ] Implicit Places using invariants in 49 ms returned []
[2024-06-02 23:39:30] [INFO ] Flow matrix only has 112 transitions (discarded 17 similar events)
[2024-06-02 23:39:30] [INFO ] Invariant cache hit.
[2024-06-02 23:39:30] [INFO ] State equation strengthened by 24 read => feed constraints.
[2024-06-02 23:39:30] [INFO ] Implicit Places using invariants and state equation in 106 ms returned []
Implicit Place search using SMT with State Equation took 158 ms to find 0 implicit places.
[2024-06-02 23:39:30] [INFO ] Redundant transitions in 1 ms returned []
Running 127 sub problems to find dead transitions.
[2024-06-02 23:39:30] [INFO ] Flow matrix only has 112 transitions (discarded 17 similar events)
[2024-06-02 23:39:30] [INFO ] Invariant cache hit.
[2024-06-02 23:39:30] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/63 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 127 unsolved
At refinement iteration 1 (OVERLAPS) 2/65 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 127 unsolved
[2024-06-02 23:39:31] [INFO ] Deduced a trap composed of 37 places in 35 ms of which 0 ms to minimize.
[2024-06-02 23:39:31] [INFO ] Deduced a trap composed of 39 places in 31 ms of which 0 ms to minimize.
[2024-06-02 23:39:31] [INFO ] Deduced a trap composed of 36 places in 46 ms of which 0 ms to minimize.
Problem TDEAD33 is UNSAT
Problem TDEAD34 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/65 variables, 3/7 constraints. Problems are: Problem set: 2 solved, 125 unsolved
[2024-06-02 23:39:31] [INFO ] Deduced a trap composed of 23 places in 45 ms of which 1 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/65 variables, 1/8 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/65 variables, 0/8 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 5 (OVERLAPS) 112/177 variables, 65/73 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/177 variables, 24/97 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/177 variables, 0/97 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 8 (OVERLAPS) 0/177 variables, 0/97 constraints. Problems are: Problem set: 2 solved, 125 unsolved
No progress, stopping.
After SMT solving in domain Real declared 177/177 variables, and 97 constraints, problems are : Problem set: 2 solved, 125 unsolved in 2450 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 65/65 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 127/127 constraints, Known Traps: 4/4 constraints]
Escalating to Integer solving :Problem set: 2 solved, 125 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/63 variables, 0/0 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 1 (OVERLAPS) 2/65 variables, 4/4 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/65 variables, 4/8 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/65 variables, 0/8 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 4 (OVERLAPS) 112/177 variables, 65/73 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/177 variables, 24/97 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/177 variables, 125/222 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/177 variables, 0/222 constraints. Problems are: Problem set: 2 solved, 125 unsolved
At refinement iteration 8 (OVERLAPS) 0/177 variables, 0/222 constraints. Problems are: Problem set: 2 solved, 125 unsolved
No progress, stopping.
After SMT solving in domain Int declared 177/177 variables, and 222 constraints, problems are : Problem set: 2 solved, 125 unsolved in 3364 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 65/65 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 125/127 constraints, Known Traps: 4/4 constraints]
After SMT, in 5863ms problems are : Problem set: 2 solved, 125 unsolved
Search for dead transitions found 2 dead transitions in 5866ms
Found 2 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 2 transitions
Dead transitions reduction (with SMT) removed 2 transitions
Starting structural reductions in REACHABILITY mode, iteration 1 : 65/65 places, 127/129 transitions.
Applied a total of 0 rules in 6 ms. Remains 65 /65 variables (removed 0) and now considering 127/127 (removed 0) transitions.
[2024-06-02 23:39:36] [INFO ] Redundant transitions in 0 ms returned []
Finished structural reductions in REACHABILITY mode , in 2 iterations and 6046 ms. Remains : 65/65 places, 127/129 transitions.
[2024-06-02 23:39:36] [INFO ] Flow matrix only has 110 transitions (discarded 17 similar events)
// Phase 1: matrix 110 rows 65 cols
[2024-06-02 23:39:36] [INFO ] Computed 4 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (99619 resets) in 591 ms. (1689 steps per ms)
BEST_FIRST walk for 1000001 steps (36653 resets) in 277 ms. (3597 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2024-06-02 23:39:37] [INFO ] Flow matrix only has 110 transitions (discarded 17 similar events)
[2024-06-02 23:39:37] [INFO ] Invariant cache hit.
[2024-06-02 23:39:37] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned sat
[2024-06-02 23:39:37] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2024-06-02 23:39:37] [INFO ] State equation strengthened by 24 read => feed constraints.
[2024-06-02 23:39:37] [INFO ] [Real]Added 24 Read/Feed constraints in 5 ms returned sat
[2024-06-02 23:39:37] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 23:39:37] [INFO ] [Nat]Absence check using 4 positive place invariants in 1 ms returned sat
[2024-06-02 23:39:37] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2024-06-02 23:39:37] [INFO ] [Nat]Added 24 Read/Feed constraints in 4 ms returned sat
[2024-06-02 23:39:37] [INFO ] Deduced a trap composed of 13 places in 47 ms of which 0 ms to minimize.
[2024-06-02 23:39:37] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 61 ms
[2024-06-02 23:39:37] [INFO ] Computed and/alt/rep : 66/348/66 causal constraints (skipped 42 transitions) in 9 ms.
[2024-06-02 23:39:37] [INFO ] Added : 9 causal constraints over 3 iterations in 50 ms. Result :sat
Minimization took 25 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 65 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 65/65 places, 127/127 transitions.
Applied a total of 0 rules in 8 ms. Remains 65 /65 variables (removed 0) and now considering 127/127 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 65/65 places, 127/127 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 65/65 places, 127/127 transitions.
Applied a total of 0 rules in 3 ms. Remains 65 /65 variables (removed 0) and now considering 127/127 (removed 0) transitions.
[2024-06-02 23:39:37] [INFO ] Flow matrix only has 110 transitions (discarded 17 similar events)
[2024-06-02 23:39:37] [INFO ] Invariant cache hit.
[2024-06-02 23:39:37] [INFO ] Implicit Places using invariants in 45 ms returned []
[2024-06-02 23:39:37] [INFO ] Flow matrix only has 110 transitions (discarded 17 similar events)
[2024-06-02 23:39:37] [INFO ] Invariant cache hit.
[2024-06-02 23:39:37] [INFO ] State equation strengthened by 24 read => feed constraints.
[2024-06-02 23:39:37] [INFO ] Implicit Places using invariants and state equation in 83 ms returned []
Implicit Place search using SMT with State Equation took 152 ms to find 0 implicit places.
[2024-06-02 23:39:37] [INFO ] Redundant transitions in 0 ms returned []
Running 125 sub problems to find dead transitions.
[2024-06-02 23:39:37] [INFO ] Flow matrix only has 110 transitions (discarded 17 similar events)
[2024-06-02 23:39:37] [INFO ] Invariant cache hit.
[2024-06-02 23:39:37] [INFO ] State equation strengthened by 24 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/63 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 1 (OVERLAPS) 2/65 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 125 unsolved
[2024-06-02 23:39:38] [INFO ] Deduced a trap composed of 18 places in 39 ms of which 1 ms to minimize.
[2024-06-02 23:39:38] [INFO ] Deduced a trap composed of 39 places in 32 ms of which 1 ms to minimize.
[2024-06-02 23:39:38] [INFO ] Deduced a trap composed of 28 places in 43 ms of which 0 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/65 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 125 unsolved
[2024-06-02 23:39:38] [INFO ] Deduced a trap composed of 24 places in 37 ms of which 0 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/65 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/65 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 5 (OVERLAPS) 110/175 variables, 65/73 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/175 variables, 24/97 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/175 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 8 (OVERLAPS) 0/175 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 125 unsolved
No progress, stopping.
After SMT solving in domain Real declared 175/175 variables, and 97 constraints, problems are : Problem set: 0 solved, 125 unsolved in 2491 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 65/65 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 125/125 constraints, Known Traps: 4/4 constraints]
Escalating to Integer solving :Problem set: 0 solved, 125 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/63 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 1 (OVERLAPS) 2/65 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/65 variables, 4/8 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/65 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 4 (OVERLAPS) 110/175 variables, 65/73 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/175 variables, 24/97 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/175 variables, 125/222 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/175 variables, 0/222 constraints. Problems are: Problem set: 0 solved, 125 unsolved
[2024-06-02 23:39:42] [INFO ] Deduced a trap composed of 13 places in 42 ms of which 0 ms to minimize.
At refinement iteration 8 (OVERLAPS) 0/175 variables, 1/223 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/175 variables, 0/223 constraints. Problems are: Problem set: 0 solved, 125 unsolved
At refinement iteration 10 (OVERLAPS) 0/175 variables, 0/223 constraints. Problems are: Problem set: 0 solved, 125 unsolved
No progress, stopping.
After SMT solving in domain Int declared 175/175 variables, and 223 constraints, problems are : Problem set: 0 solved, 125 unsolved in 4703 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, State Equation: 65/65 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 125/125 constraints, Known Traps: 5/5 constraints]
After SMT, in 7241ms problems are : Problem set: 0 solved, 125 unsolved
Search for dead transitions found 0 dead transitions in 7243ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7404 ms. Remains : 65/65 places, 127/127 transitions.
RANDOM walk for 40000 steps (3999 resets) in 765 ms. (52 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (1461 resets) in 126 ms. (314 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (1470 resets) in 162 ms. (245 steps per ms) remains 2/2 properties
Finished probabilistic random walk after 1043 steps, run visited all 2 properties in 18 ms. (steps per millisecond=57 )
Probabilistic random walk after 1043 steps, saw 417 distinct states, run finished after 22 ms. (steps per millisecond=47 ) properties seen :2
FORMULA FireWire-PT-16-UpperBounds-06 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 71204 ms.
ITS solved all properties within timeout

BK_STOP 1717371585547

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

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

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="FireWire-PT-16"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="greatspnxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5568"
echo " Executing tool greatspnxred"
echo " Input is FireWire-PT-16, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r549-tall-171734898200293"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FireWire-PT-16.tgz
mv FireWire-PT-16 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;