Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r056-tall-174854041800227.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)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool gold2024
Input is CloudReconfiguration-PT-401, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r056-tall-174854041800227
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.3M
-rw-r--r-- 1 mcc users 7.4K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 75K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.4K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 34K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 118K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.2K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 56K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 912K May 29 14:32 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1748648659114

Invoking MCC driver with
BK_TOOL=gold2024
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CloudReconfiguration-PT-401
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2025-05-30 23:44:20] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -timeout, 180, -rebuildPNML]
[2025-05-30 23:44:20] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-30 23:44:20] [INFO ] Load time of PNML (sax parser for PT used): 204 ms
[2025-05-30 23:44:20] [INFO ] Transformed 3554 places.
[2025-05-30 23:44:20] [INFO ] Transformed 4263 transitions.
[2025-05-30 23:44:20] [INFO ] Found NUPN structural information;
[2025-05-30 23:44:20] [INFO ] Parsed PT model containing 3554 places and 4263 transitions and 8889 arcs in 325 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 3554/3554 places, 4263/4263 transitions.
Graph (trivial) has 4080 edges and 3554 vertex of which 1260 / 3554 are part of one of the 88 SCC in 29 ms
Free SCC test removed 1172 places
Ensure Unique test removed 1348 transitions
Reduce isomorphic transitions removed 1348 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1605 transitions
Trivial Post-agglo rules discarded 1605 transitions
Performed 1605 trivial Post agglomeration. Transition count delta: 1605
Iterating post reduction 0 with 1605 rules applied. Total rules applied 1606 place count 2382 transition count 1310
Reduce places removed 1605 places and 0 transitions.
Ensure Unique test removed 91 transitions
Reduce isomorphic transitions removed 91 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 44 transitions
Trivial Post-agglo rules discarded 44 transitions
Performed 44 trivial Post agglomeration. Transition count delta: 44
Iterating post reduction 1 with 1740 rules applied. Total rules applied 3346 place count 777 transition count 1175
Reduce places removed 44 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 2 with 48 rules applied. Total rules applied 3394 place count 733 transition count 1171
Performed 30 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 30 Pre rules applied. Total rules applied 3394 place count 733 transition count 1141
Deduced a syphon composed of 30 places in 8 ms
Reduce places removed 30 places and 0 transitions.
Iterating global reduction 3 with 60 rules applied. Total rules applied 3454 place count 703 transition count 1141
Performed 389 Post agglomeration using F-continuation condition with reduction of 100 identical transitions.
Deduced a syphon composed of 389 places in 1 ms
Reduce places removed 389 places and 0 transitions.
Iterating global reduction 3 with 778 rules applied. Total rules applied 4232 place count 314 transition count 652
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 3 with 4 rules applied. Total rules applied 4236 place count 314 transition count 648
Performed 36 Post agglomeration using F-continuation condition.Transition count delta: -72
Deduced a syphon composed of 36 places in 1 ms
Reduce places removed 36 places and 0 transitions.
Iterating global reduction 4 with 72 rules applied. Total rules applied 4308 place count 278 transition count 720
Ensure Unique test removed 20 transitions
Reduce isomorphic transitions removed 20 transitions.
Iterating post reduction 4 with 20 rules applied. Total rules applied 4328 place count 278 transition count 700
Applied a total of 4328 rules in 202 ms. Remains 278 /3554 variables (removed 3276) and now considering 700/4263 (removed 3563) transitions.
[2025-05-30 23:44:20] [INFO ] Flow matrix only has 590 transitions (discarded 110 similar events)
// Phase 1: matrix 590 rows 278 cols
[2025-05-30 23:44:21] [INFO ] Computed 5 invariants in 24 ms
[2025-05-30 23:44:21] [INFO ] Implicit Places using invariants in 359 ms returned []
[2025-05-30 23:44:21] [INFO ] Flow matrix only has 590 transitions (discarded 110 similar events)
[2025-05-30 23:44:21] [INFO ] Invariant cache hit.
[2025-05-30 23:44:21] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-05-30 23:44:21] [INFO ] Implicit Places using invariants and state equation in 517 ms returned [93, 211, 270]
Discarding 3 places :
Implicit Place search using SMT with State Equation took 907 ms to find 3 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 275/3554 places, 700/4263 transitions.
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 0 with 6 rules applied. Total rules applied 6 place count 272 transition count 697
Applied a total of 6 rules in 8 ms. Remains 272 /275 variables (removed 3) and now considering 697/700 (removed 3) transitions.
[2025-05-30 23:44:21] [INFO ] Flow matrix only has 587 transitions (discarded 110 similar events)
// Phase 1: matrix 587 rows 272 cols
[2025-05-30 23:44:21] [INFO ] Computed 2 invariants in 4 ms
[2025-05-30 23:44:21] [INFO ] Implicit Places using invariants in 132 ms returned []
[2025-05-30 23:44:22] [INFO ] Flow matrix only has 587 transitions (discarded 110 similar events)
[2025-05-30 23:44:22] [INFO ] Invariant cache hit.
[2025-05-30 23:44:22] [INFO ] State equation strengthened by 10 read => feed constraints.
[2025-05-30 23:44:22] [INFO ] Implicit Places using invariants and state equation in 350 ms returned []
Implicit Place search using SMT with State Equation took 483 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 272/3554 places, 697/4263 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 1618 ms. Remains : 272/3554 places, 697/4263 transitions.
Discarding 433 transitions out of 697. Remains 264
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (3884 resets) in 2743 ms. (14 steps per ms) remains 41/263 properties
BEST_FIRST walk for 4004 steps (47 resets) in 32 ms. (121 steps per ms) remains 38/41 properties
BEST_FIRST walk for 4004 steps (39 resets) in 14 ms. (266 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (47 resets) in 20 ms. (190 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (48 resets) in 32 ms. (121 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (41 resets) in 20 ms. (190 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4003 steps (44 resets) in 27 ms. (142 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (46 resets) in 39 ms. (100 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (37 resets) in 20 ms. (190 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (43 resets) in 23 ms. (166 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (48 resets) in 22 ms. (174 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4003 steps (51 resets) in 36 ms. (108 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4003 steps (46 resets) in 16 ms. (235 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4003 steps (48 resets) in 28 ms. (138 steps per ms) remains 37/38 properties
BEST_FIRST walk for 4004 steps (45 resets) in 41 ms. (95 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4003 steps (40 resets) in 25 ms. (153 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4004 steps (62 resets) in 30 ms. (129 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4002 steps (36 resets) in 22 ms. (174 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4004 steps (30 resets) in 16 ms. (235 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4004 steps (28 resets) in 18 ms. (210 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4004 steps (33 resets) in 16 ms. (235 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4004 steps (34 resets) in 15 ms. (250 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4004 steps (31 resets) in 16 ms. (235 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4004 steps (30 resets) in 14 ms. (266 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4004 steps (35 resets) in 12 ms. (308 steps per ms) remains 37/37 properties
BEST_FIRST walk for 4004 steps (33 resets) in 10 ms. (364 steps per ms) remains 35/37 properties
BEST_FIRST walk for 4003 steps (35 resets) in 9 ms. (400 steps per ms) remains 35/35 properties
BEST_FIRST walk for 4003 steps (30 resets) in 10 ms. (363 steps per ms) remains 35/35 properties
BEST_FIRST walk for 4003 steps (29 resets) in 11 ms. (333 steps per ms) remains 35/35 properties
BEST_FIRST walk for 4003 steps (33 resets) in 11 ms. (333 steps per ms) remains 35/35 properties
BEST_FIRST walk for 4004 steps (31 resets) in 21 ms. (182 steps per ms) remains 35/35 properties
BEST_FIRST walk for 4002 steps (31 resets) in 13 ms. (285 steps per ms) remains 35/35 properties
BEST_FIRST walk for 4003 steps (30 resets) in 10 ms. (363 steps per ms) remains 35/35 properties
BEST_FIRST walk for 4003 steps (31 resets) in 10 ms. (363 steps per ms) remains 34/35 properties
BEST_FIRST walk for 4004 steps (34 resets) in 9 ms. (400 steps per ms) remains 34/34 properties
BEST_FIRST walk for 4004 steps (31 resets) in 9 ms. (400 steps per ms) remains 34/34 properties
[2025-05-30 23:44:23] [INFO ] Flow matrix only has 587 transitions (discarded 110 similar events)
[2025-05-30 23:44:23] [INFO ] Invariant cache hit.
[2025-05-30 23:44:23] [INFO ] State equation strengthened by 10 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 40/40 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/40 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 2 (OVERLAPS) 84/124 variables, 2/42 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/124 variables, 84/126 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/124 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 5 (OVERLAPS) 496/620 variables, 124/250 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/620 variables, 2/252 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/620 variables, 0/252 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 8 (OVERLAPS) 233/853 variables, 143/395 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/853 variables, 143/538 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/853 variables, 7/545 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/853 variables, 0/545 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 12 (OVERLAPS) 5/858 variables, 5/550 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/858 variables, 5/555 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/858 variables, 0/555 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 15 (OVERLAPS) 1/859 variables, 1/556 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/859 variables, 0/556 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 17 (OVERLAPS) 0/859 variables, 0/556 constraints. Problems are: Problem set: 0 solved, 34 unsolved
No progress, stopping.
After SMT solving in domain Real declared 859/859 variables, and 556 constraints, problems are : Problem set: 0 solved, 34 unsolved in 3999 ms.
Refiners :[Domain max(s): 272/272 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 272/272 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 34/34 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 34 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/40 variables, 40/40 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/40 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 2 (OVERLAPS) 84/124 variables, 2/42 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/124 variables, 84/126 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/124 variables, 0/126 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 5 (OVERLAPS) 496/620 variables, 124/250 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/620 variables, 2/252 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/620 variables, 5/257 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/620 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 9 (OVERLAPS) 233/853 variables, 143/400 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/853 variables, 143/543 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/853 variables, 7/550 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/853 variables, 29/579 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/853 variables, 0/579 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 14 (OVERLAPS) 5/858 variables, 5/584 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/858 variables, 5/589 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/858 variables, 0/589 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 17 (OVERLAPS) 1/859 variables, 1/590 constraints. Problems are: Problem set: 0 solved, 34 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/859 variables, 0/590 constraints. Problems are: Problem set: 0 solved, 34 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 859/859 variables, and 590 constraints, problems are : Problem set: 0 solved, 34 unsolved in 5009 ms.
Refiners :[Domain max(s): 272/272 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 272/272 constraints, ReadFeed: 10/10 constraints, PredecessorRefiner: 34/34 constraints, Known Traps: 0/0 constraints]
After SMT, in 9216ms problems are : Problem set: 0 solved, 34 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 40 out of 272 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 272/272 places, 697/697 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 91 transitions
Reduce isomorphic transitions removed 91 transitions.
Iterating post reduction 0 with 91 rules applied. Total rules applied 91 place count 272 transition count 606
Discarding 98 places :
Symmetric choice reduction at 1 with 98 rule applications. Total rules 189 place count 174 transition count 497
Iterating global reduction 1 with 98 rules applied. Total rules applied 287 place count 174 transition count 497
Ensure Unique test removed 84 transitions
Reduce isomorphic transitions removed 84 transitions.
Iterating post reduction 1 with 84 rules applied. Total rules applied 371 place count 174 transition count 413
Discarding 11 places :
Symmetric choice reduction at 2 with 11 rule applications. Total rules 382 place count 163 transition count 399
Iterating global reduction 2 with 11 rules applied. Total rules applied 393 place count 163 transition count 399
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 2 with 8 rules applied. Total rules applied 401 place count 163 transition count 391
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 404 place count 160 transition count 382
Iterating global reduction 3 with 3 rules applied. Total rules applied 407 place count 160 transition count 382
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 410 place count 157 transition count 370
Iterating global reduction 3 with 3 rules applied. Total rules applied 413 place count 157 transition count 370
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 416 place count 154 transition count 352
Iterating global reduction 3 with 3 rules applied. Total rules applied 419 place count 154 transition count 352
Performed 25 Post agglomeration using F-continuation condition with reduction of 7 identical transitions.
Deduced a syphon composed of 25 places in 0 ms
Reduce places removed 25 places and 0 transitions.
Iterating global reduction 3 with 50 rules applied. Total rules applied 469 place count 129 transition count 320
Ensure Unique test removed 13 transitions
Reduce isomorphic transitions removed 13 transitions.
Iterating post reduction 3 with 13 rules applied. Total rules applied 482 place count 129 transition count 307
Performed 9 Post agglomeration using F-continuation condition.Transition count delta: -7
Deduced a syphon composed of 9 places in 7 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 4 with 18 rules applied. Total rules applied 500 place count 120 transition count 314
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 4 with 9 rules applied. Total rules applied 509 place count 120 transition count 305
Discarding 5 places :
Symmetric choice reduction at 5 with 5 rule applications. Total rules 514 place count 115 transition count 291
Iterating global reduction 5 with 5 rules applied. Total rules applied 519 place count 115 transition count 291
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 521 place count 115 transition count 289
Discarding 2 places :
Symmetric choice reduction at 6 with 2 rule applications. Total rules 523 place count 113 transition count 285
Iterating global reduction 6 with 2 rules applied. Total rules applied 525 place count 113 transition count 285
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 6 with 2 rules applied. Total rules applied 527 place count 113 transition count 283
Drop transitions (Redundant composition of simpler transitions.) removed 34 transitions
Redundant transition composition rules discarded 34 transitions
Iterating global reduction 7 with 34 rules applied. Total rules applied 561 place count 113 transition count 249
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 7 with 1 rules applied. Total rules applied 562 place count 113 transition count 248
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 8 with 1 rules applied. Total rules applied 563 place count 112 transition count 248
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 9 with 2 rules applied. Total rules applied 565 place count 111 transition count 247
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 9 with 2 rules applied. Total rules applied 567 place count 111 transition count 245
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 9 with 1 rules applied. Total rules applied 568 place count 111 transition count 244
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 10 with 1 rules applied. Total rules applied 569 place count 110 transition count 244
Free-agglomeration rule applied 1 times.
Iterating global reduction 11 with 1 rules applied. Total rules applied 570 place count 110 transition count 243
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 11 with 1 rules applied. Total rules applied 571 place count 109 transition count 243
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 12 with 1 rules applied. Total rules applied 572 place count 109 transition count 242
Partial Free-agglomeration rule applied 6 times.
Drop transitions (Partial Free agglomeration) removed 6 transitions
Iterating global reduction 12 with 6 rules applied. Total rules applied 578 place count 109 transition count 242
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 12 with 2 rules applied. Total rules applied 580 place count 109 transition count 240
Partial Post-agglomeration rule applied 3 times.
Drop transitions (Partial Post agglomeration) removed 3 transitions
Iterating global reduction 12 with 3 rules applied. Total rules applied 583 place count 109 transition count 240
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 12 with 3 rules applied. Total rules applied 586 place count 109 transition count 237
Applied a total of 586 rules in 155 ms. Remains 109 /272 variables (removed 163) and now considering 237/697 (removed 460) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 158 ms. Remains : 109/272 places, 237/697 transitions.
RANDOM walk for 4000000 steps (503386 resets) in 10451 ms. (382 steps per ms) remains 1/34 properties
BEST_FIRST walk for 4000004 steps (117640 resets) in 1949 ms. (2051 steps per ms) remains 1/1 properties
[2025-05-30 23:44:36] [INFO ] Flow matrix only has 219 transitions (discarded 18 similar events)
// Phase 1: matrix 219 rows 109 cols
[2025-05-30 23:44:36] [INFO ] Computed 5 invariants in 2 ms
[2025-05-30 23:44:36] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 102/108 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 219/327 variables, 108/113 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/327 variables, 2/115 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/327 variables, 0/115 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/328 variables, 1/116 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/328 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/328 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 116 constraints, problems are : Problem set: 0 solved, 1 unsolved in 102 ms.
Refiners :[Generalized P Invariants (flows): 5/5 constraints, State Equation: 109/109 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 102/108 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 219/327 variables, 108/113 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/327 variables, 2/115 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/327 variables, 1/116 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/327 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 1/328 variables, 1/117 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/328 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 0/328 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 117 constraints, problems are : Problem set: 0 solved, 1 unsolved in 101 ms.
Refiners :[Generalized P Invariants (flows): 5/5 constraints, State Equation: 109/109 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 214ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 8 ms.
Support contains 6 out of 109 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 109/109 places, 237/237 transitions.
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 3 Pre rules applied. Total rules applied 0 place count 109 transition count 234
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 0 with 6 rules applied. Total rules applied 6 place count 106 transition count 234
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 9 place count 103 transition count 230
Iterating global reduction 0 with 3 rules applied. Total rules applied 12 place count 103 transition count 230
Performed 9 Post agglomeration using F-continuation condition.Transition count delta: 9
Deduced a syphon composed of 9 places in 1 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 0 with 18 rules applied. Total rules applied 30 place count 94 transition count 221
Drop transitions (Empty/Sink Transition effects.) removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 0 with 15 rules applied. Total rules applied 45 place count 94 transition count 206
Discarding 11 places :
Symmetric choice reduction at 1 with 11 rule applications. Total rules 56 place count 83 transition count 195
Iterating global reduction 1 with 11 rules applied. Total rules applied 67 place count 83 transition count 195
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 1 with 5 rules applied. Total rules applied 72 place count 83 transition count 190
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 2 with 14 rules applied. Total rules applied 86 place count 76 transition count 183
Drop transitions (Empty/Sink Transition effects.) removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 2 with 7 rules applied. Total rules applied 93 place count 76 transition count 176
Discarding 6 places :
Symmetric choice reduction at 3 with 6 rule applications. Total rules 99 place count 70 transition count 170
Iterating global reduction 3 with 6 rules applied. Total rules applied 105 place count 70 transition count 170
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 3 with 6 rules applied. Total rules applied 111 place count 70 transition count 164
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 4 with 12 rules applied. Total rules applied 123 place count 64 transition count 164
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 4 with 8 rules applied. Total rules applied 131 place count 64 transition count 156
Discarding 6 places :
Symmetric choice reduction at 5 with 6 rule applications. Total rules 137 place count 58 transition count 150
Iterating global reduction 5 with 6 rules applied. Total rules applied 143 place count 58 transition count 150
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 5 with 6 rules applied. Total rules applied 149 place count 58 transition count 144
Drop transitions (Redundant composition of simpler transitions.) removed 43 transitions
Redundant transition composition rules discarded 43 transitions
Iterating global reduction 6 with 43 rules applied. Total rules applied 192 place count 58 transition count 101
Discarding 2 places :
Symmetric choice reduction at 6 with 2 rule applications. Total rules 194 place count 56 transition count 97
Iterating global reduction 6 with 2 rules applied. Total rules applied 196 place count 56 transition count 97
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 197 place count 56 transition count 96
Discarding 1 places :
Symmetric choice reduction at 7 with 1 rule applications. Total rules 198 place count 55 transition count 95
Iterating global reduction 7 with 1 rules applied. Total rules applied 199 place count 55 transition count 95
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 200 place count 55 transition count 94
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 8 with 4 rules applied. Total rules applied 204 place count 53 transition count 92
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 8 with 2 rules applied. Total rules applied 206 place count 53 transition count 90
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 9 with 2 rules applied. Total rules applied 208 place count 53 transition count 88
Free-agglomeration rule applied 4 times.
Iterating global reduction 9 with 4 rules applied. Total rules applied 212 place count 53 transition count 84
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 9 with 4 rules applied. Total rules applied 216 place count 49 transition count 84
Applied a total of 216 rules in 49 ms. Remains 49 /109 variables (removed 60) and now considering 84/237 (removed 153) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49 ms. Remains : 49/109 places, 84/237 transitions.
RANDOM walk for 62484 steps (6573 resets) in 163 ms. (381 steps per ms) remains 0/1 properties
Able to resolve query QuasiLiveness after proving 264 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 16302 ms.
ITS solved all properties within timeout

BK_STOP 1748648676711

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -timeout 180 -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="CloudReconfiguration-PT-401"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2024"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 gold2024"
echo " Input is CloudReconfiguration-PT-401, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r056-tall-174854041800227"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudReconfiguration-PT-401.tgz
mv CloudReconfiguration-PT-401 execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;