About the Execution of LoLA for FlexibleBarrier-PT-22b
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 784.360 | 758787.00 | 1517130.00 | 347.50 | TTFTFTFFFT?FTTTT | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Waiting for the VM to be ready (probing ssh)
.......
=====================================================================
Generated by BenchKit 2-3254
Executing tool lola
Input is FlexibleBarrier-PT-22b, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r188-blw3-149581034400180
=====================================================================
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
here is the order used to build the result vector(from text file)
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-0
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-1
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-10
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-11
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-12
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-13
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-14
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-15
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-2
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-3
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-4
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-5
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-6
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-7
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-8
FORMULA_NAME FlexibleBarrier-PT-22b-ReachabilityFireability-9
=== Now, execution of the tool begins
BK_START 1496501719781
Time: 3600 - MCC
----- Start make prepare stdout -----
===========================================================================================
FlexibleBarrier-PT-22b: translating PT Petri net model.pnml into LoLA format
===========================================================================================
translating PT Petri net complete
checking for too many tokens
===========================================================================================
FlexibleBarrier-PT-22b: translating PT formula ReachabilityFireability into LoLA format
===========================================================================================
translating formula complete
touch formulae;
----- Start make result stdout -----
ReachabilityFireability @ FlexibleBarrier-PT-22b @ 3540 seconds
----- Start make result stdout -----
lola: LoLA will run for 3540 seconds at most (--timelimit)
lola: NET
lola: reading net from model.pnml.lola
lola: finished parsing
lola: closed net file model.pnml.lola
lola: 13947/65536 symbol table entries, 4218 collisions
lola: preprocessing...
lola: finding significant places
lola: 6478 places, 7469 transitions, 6454 significant places
lola: computing forward-conflicting sets
lola: computing back-conflicting sets
lola: 7515 transition conflict sets
lola: TASK
lola: reading formula from FlexibleBarrier-PT-22b-ReachabilityFireability.task
lola: E (F ((NOT FIREABLE(t954) AND (FIREABLE(t6036) OR FIREABLE(t887)) AND FIREABLE(t608) AND FIREABLE(t3627)))) : E (F ((NOT FIREABLE(t7406) AND NOT FIREABLE(t4170) AND FIREABLE(t7225) AND (FIREABLE(t4162) OR FIREABLE(t2750) OR (FIREABLE(t1564) AND FIREABLE(t4846) AND FIREABLE(t5322)))))) : A (G (NOT FIREABLE(t608))) : E (F ((NOT FIREABLE(t6812) AND NOT FIREABLE(t6101) AND FIREABLE(t1641) AND NOT FIREABLE(t5694)))) : E (F (FIREABLE(t922))) : A (G (((NOT FIREABLE(t1057) OR NOT FIREABLE(t6818) OR FIREABLE(t6624)) AND NOT FIREABLE(t3456)))) : E (F (((FIREABLE(t6107) AND FIREABLE(t4897)) OR ((FIREABLE(t65) OR FIREABLE(t3952) OR FIREABLE(t4073) OR FIREABLE(t817)) AND FIREABLE(t2075))))) : E (F (FIREABLE(t7161))) : A (G (((FIREABLE(t4720) AND FIREABLE(t1563)) OR NOT FIREABLE(t1784) OR (NOT FIREABLE(t648) AND FIREABLE(t7171)) OR FIREABLE(t134)))) : A (G ((NOT FIREABLE(t7372) OR FIREABLE(t2560) OR NOT FIREABLE(t1467)))) : A (G ((NOT FIREABLE(t7038) AND NOT FIREABLE(t1123) AND NOT FIREABLE(t5043) AND (FIREABLE(t4486) OR FIREABLE(t2526) OR FIREABLE(t7345) OR NOT FIREABLE(t2103))))) : E (F (((NOT FIREABLE(t7204) OR NOT FIREABLE(t4335)) AND FIREABLE(t6255) AND FIREABLE(t4208)))) : A (G (((NOT FIREABLE(t3265) OR NOT FIREABLE(t3664)) AND (NOT FIREABLE(t1836) OR NOT FIREABLE(t3661) OR NOT FIREABLE(t3860))))) : E (F (((FIREABLE(t3307) OR FIREABLE(t4967)) AND (NOT FIREABLE(t2748) OR (NOT FIREABLE(t2309) AND NOT FIREABLE(t1457)))))) : A (G ((NOT FIREABLE(t7198) OR NOT FIREABLE(t2606) OR FIREABLE(t2625) OR NOT FIREABLE(t2727)))) : A (G ((FIREABLE(t4878) OR NOT FIREABLE(t2863) OR (NOT FIREABLE(t4285) AND FIREABLE(t4307)) OR FIREABLE(t7221))))
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 221 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((NOT FIREABLE(t954) AND (FIREABLE(t6036) OR FIREABLE(t887)) AND FIREABLE(t608) AND FIREABLE(t3627))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 8 literals and 2 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability.sara.
lola: sara is running 0 secs || 27678 markings, 52563 edges, 5536 markings/sec, 0 secs
lola: sara is running 5 secs || 53598 markings, 104565 edges, 5184 markings/sec, 5 secs
sara: place or transition ordering is non-deterministic
lola: sara is running 10 secs || 79412 markings, 156730 edges, 5163 markings/sec, 10 secs
lola: sara is running 15 secs || 107109 markings, 209523 edges, 5539 markings/sec, 15 secs
lola: state equation: solution produced
lola: SUBRESULT
lola: result: yes
lola: produced by: state equation
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 1 will run for 234 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((NOT FIREABLE(t7406) AND NOT FIREABLE(t4170) AND FIREABLE(t7225) AND (FIREABLE(t4162) OR FIREABLE(t2750) OR (FIREABLE(t1564) AND FIREABLE(t4846) AND FIREABLE(t5322))))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 42 literals and 6 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability.sara.
lola: sara is running 0 secs || 28129 markings, 53564 edges, 5626 markings/sec, 0 secs
lola: sara is running 5 secs || 54376 markings, 106212 edges, 5249 markings/sec, 5 secs
sara: place or transition ordering is non-deterministic
lola: sara is running 10 secs || 80839 markings, 159351 edges, 5293 markings/sec, 10 secs
lola: sara is running 15 secs || 107684 markings, 211662 edges, 5369 markings/sec, 15 secs
lola: sara is running 20 secs || 133754 markings, 275773 edges, 5214 markings/sec, 20 secs
lola: sara is running 25 secs || 159938 markings, 328294 edges, 5237 markings/sec, 25 secs
lola: state equation: solution produced
lola: SUBRESULT
lola: result: yes
lola: produced by: state equation
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 2 will run for 249 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G (NOT FIREABLE(t608)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-2.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-2.sara.
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 3 will run for 268 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F ((NOT FIREABLE(t6812) AND NOT FIREABLE(t6101) AND FIREABLE(t1641) AND NOT FIREABLE(t5694))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 12 literals and 3 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-3.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-3.sara.
lola: sara is running 0 secs || 27294 markings, 52151 edges, 5459 markings/sec, 0 secs
lola: sara is running 5 secs || 53084 markings, 103570 edges, 5158 markings/sec, 5 secs
sara: place or transition ordering is non-deterministic
lola: sara is running 10 secs || 78877 markings, 155314 edges, 5159 markings/sec, 10 secs
lola: sara is running 15 secs || 106402 markings, 207728 edges, 5505 markings/sec, 15 secs
lola: sara is running 20 secs || 131947 markings, 259010 edges, 5109 markings/sec, 20 secs
lola: sara is running 25 secs || 151611 markings, 311726 edges, 3933 markings/sec, 25 secs
lola: sara is running 30 secs || 178468 markings, 364408 edges, 5371 markings/sec, 30 secs
lola: sara is running 35 secs || 204390 markings, 416104 edges, 5184 markings/sec, 35 secs
lola: sara is running 40 secs || 230173 markings, 468355 edges, 5157 markings/sec, 40 secs
lola: sara is running 45 secs || 257666 markings, 521038 edges, 5499 markings/sec, 45 secs
lola: sara is running 50 secs || 283577 markings, 572721 edges, 5182 markings/sec, 50 secs
lola: sara is running 55 secs || 309508 markings, 624900 edges, 5186 markings/sec, 55 secs
lola: sara is running 60 secs || 337168 markings, 677821 edges, 5532 markings/sec, 60 secs
lola: sara is running 65 secs || 361242 markings, 726135 edges, 4815 markings/sec, 65 secs
lola: sara is running 70 secs || 387127 markings, 777770 edges, 5177 markings/sec, 70 secs
lola: sara is running 75 secs || 412985 markings, 829736 edges, 5172 markings/sec, 75 secs
lola: sara is running 80 secs || 440509 markings, 882953 edges, 5505 markings/sec, 80 secs
lola: sara is running 85 secs || 466516 markings, 934831 edges, 5201 markings/sec, 85 secs
lola: sara is running 90 secs || 486858 markings, 1011504 edges, 4068 markings/sec, 90 secs
lola: sara is running 95 secs || 506696 markings, 1094672 edges, 3968 markings/sec, 95 secs
lola: sara is running 100 secs || 526623 markings, 1178263 edges, 3985 markings/sec, 100 secs
lola: sara is running 105 secs || 542623 markings, 1244957 edges, 3200 markings/sec, 105 secs
lola: sara is running 110 secs || 562848 markings, 1328981 edges, 4045 markings/sec, 110 secs
lola: sara is running 115 secs || 583133 markings, 1413921 edges, 4057 markings/sec, 115 secs
lola: sara is running 120 secs || 603420 markings, 1498823 edges, 4057 markings/sec, 120 secs
lola: sara is running 125 secs || 622121 markings, 1591715 edges, 3740 markings/sec, 125 secs
lola: sara is running 130 secs || 641393 markings, 1675163 edges, 3854 markings/sec, 130 secs
lola: sara is running 135 secs || 660944 markings, 1756969 edges, 3910 markings/sec, 135 secs
lola: sara is running 140 secs || 680342 markings, 1841076 edges, 3880 markings/sec, 140 secs
lola: sara is running 145 secs || 699975 markings, 1923365 edges, 3927 markings/sec, 145 secs
lola: sara is running 150 secs || 718008 markings, 2020061 edges, 3607 markings/sec, 150 secs
lola: sara is running 155 secs || 736745 markings, 2101787 edges, 3747 markings/sec, 155 secs
lola: sara is running 160 secs || 756954 markings, 2170107 edges, 4042 markings/sec, 160 secs
lola: sara is running 165 secs || 777180 markings, 2231128 edges, 4045 markings/sec, 165 secs
lola: state equation: solution produced
lola: SUBRESULT
lola: result: yes
lola: produced by: state equation
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 4 will run for 276 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F (FIREABLE(t922)))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 1 literals and 1 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-4.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-4.sara.
lola: sara is running 0 secs || 28037 markings, 53477 edges, 5607 markings/sec, 0 secs
lola: sara is running 5 secs || 54283 markings, 106111 edges, 5249 markings/sec, 5 secs
sara: place or transition ordering is non-deterministic
lola: sara is running 10 secs || 80712 markings, 159218 edges, 5286 markings/sec, 10 secs
lola: sara is running 15 secs || 108409 markings, 212623 edges, 5539 markings/sec, 15 secs
lola: sara is running 20 secs || 134337 markings, 264545 edges, 5186 markings/sec, 20 secs
lola: sara is running 25 secs || 157219 markings, 309831 edges, 4576 markings/sec, 25 secs
lola: sara is running 30 secs || 183591 markings, 362986 edges, 5274 markings/sec, 30 secs
lola: sara is running 35 secs || 211358 markings, 416385 edges, 5553 markings/sec, 35 secs
lola: sara is running 40 secs || 237571 markings, 468936 edges, 5243 markings/sec, 40 secs
lola: sara is running 45 secs || 264473 markings, 522395 edges, 5380 markings/sec, 45 secs
lola: sara is running 50 secs || 291858 markings, 575810 edges, 5477 markings/sec, 50 secs
lola: sara is running 55 secs || 318069 markings, 628366 edges, 5242 markings/sec, 55 secs
lola: sara is running 60 secs || 345206 markings, 681645 edges, 5427 markings/sec, 60 secs
lola: sara is running 65 secs || 371997 markings, 734442 edges, 5358 markings/sec, 65 secs
lola: sara is running 70 secs || 398203 markings, 786979 edges, 5241 markings/sec, 70 secs
lola: sara is running 75 secs || 424772 markings, 839653 edges, 5314 markings/sec, 75 secs
lola: sara is running 80 secs || 451540 markings, 891788 edges, 5354 markings/sec, 80 secs
lola: sara is running 85 secs || 472276 markings, 940648 edges, 4147 markings/sec, 85 secs
lola: sara is running 90 secs || 492291 markings, 1024525 edges, 4003 markings/sec, 90 secs
lola: sara is running 95 secs || 512373 markings, 1108624 edges, 4016 markings/sec, 95 secs
lola: sara is running 100 secs || 532710 markings, 1193764 edges, 4067 markings/sec, 100 secs
lola: sara is running 105 secs || 553348 markings, 1280026 edges, 4128 markings/sec, 105 secs
lola: sara is running 110 secs || 570495 markings, 1351675 edges, 3429 markings/sec, 110 secs
lola: sara is running 115 secs || 590084 markings, 1433927 edges, 3918 markings/sec, 115 secs
lola: sara is running 120 secs || 610317 markings, 1520213 edges, 4047 markings/sec, 120 secs
lola: sara is running 125 secs || 629086 markings, 1614356 edges, 3754 markings/sec, 125 secs
lola: sara is running 130 secs || 648824 markings, 1698429 edges, 3948 markings/sec, 130 secs
lola: sara is running 135 secs || 668625 markings, 1782423 edges, 3960 markings/sec, 135 secs
lola: sara is running 140 secs || 688512 markings, 1865725 edges, 3977 markings/sec, 140 secs
lola: sara is running 145 secs || 708090 markings, 1950725 edges, 3916 markings/sec, 145 secs
lola: sara is running 150 secs || 726982 markings, 2043552 edges, 3778 markings/sec, 150 secs
lola: sara is running 155 secs || 746700 markings, 2123541 edges, 3944 markings/sec, 155 secs
lola: sara is running 160 secs || 767721 markings, 2188868 edges, 4204 markings/sec, 160 secs
lola: sara is running 165 secs || 792384 markings, 2246698 edges, 4933 markings/sec, 165 secs
lola: sara is running 170 secs || 818712 markings, 2299490 edges, 5266 markings/sec, 170 secs
lola: sara is running 175 secs || 844724 markings, 2351559 edges, 5202 markings/sec, 175 secs
lola: sara is running 180 secs || 871479 markings, 2404200 edges, 5351 markings/sec, 180 secs
lola: sara is running 185 secs || 898331 markings, 2456974 edges, 5370 markings/sec, 185 secs
lola: sara is running 190 secs || 924415 markings, 2509230 edges, 5217 markings/sec, 190 secs
lola: sara is running 195 secs || 951395 markings, 2562583 edges, 5396 markings/sec, 195 secs
lola: sara is running 200 secs || 978669 markings, 2616031 edges, 5455 markings/sec, 200 secs
lola: sara is running 205 secs || 1005071 markings, 2668986 edges, 5280 markings/sec, 205 secs
lola: sara is running 210 secs || 1032555 markings, 2722284 edges, 5497 markings/sec, 210 secs
lola: sara is running 215 secs || 1059415 markings, 2775993 edges, 5372 markings/sec, 215 secs
lola: sara is running 220 secs || 1085731 markings, 2828753 edges, 5263 markings/sec, 220 secs
lola: sara is running 225 secs || 1113454 markings, 2882081 edges, 5545 markings/sec, 225 secs
lola: sara is running 230 secs || 1139717 markings, 2934978 edges, 5253 markings/sec, 230 secs
lola: sara is running 235 secs || 1165983 markings, 2987635 edges, 5253 markings/sec, 235 secs
lola: sara is running 240 secs || 1193893 markings, 3041532 edges, 5582 markings/sec, 240 secs
lola: sara is running 245 secs || 1220330 markings, 3094648 edges, 5287 markings/sec, 245 secs
lola: sara is running 250 secs || 1246545 markings, 3147307 edges, 5243 markings/sec, 250 secs
lola: sara is running 255 secs || 1266758 markings, 3230033 edges, 4043 markings/sec, 255 secs
lola: sara is running 260 secs || 1287014 markings, 3314819 edges, 4051 markings/sec, 260 secs
lola: sara is running 265 secs || 1307495 markings, 3400472 edges, 4096 markings/sec, 265 secs
lola: sara is running 270 secs || 1324599 markings, 3472010 edges, 3421 markings/sec, 270 secs
lola: local time limit reached - aborting
lola: Child process aborted or communication problem between parent and child process
lola: subprocess 5 will run for 276 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G (((NOT FIREABLE(t1057) OR NOT FIREABLE(t6818) OR FIREABLE(t6624)) AND NOT FIREABLE(t3456))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 16 literals and 4 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-5.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-5.sara.
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 6 will run for 303 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F (((FIREABLE(t6107) AND FIREABLE(t4897)) OR ((FIREABLE(t65) OR FIREABLE(t3952) OR FIREABLE(t4073) OR FIREABLE(t817)) AND FIREABLE(t2075)))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 10 literals and 5 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-6.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-6.sara.
lola: sara is running 0 secs || 28499 markings, 53939 edges, 5700 markings/sec, 0 secs
lola: sara is running 5 secs || 54658 markings, 106378 edges, 5232 markings/sec, 5 secs
sara: place or transition ordering is non-deterministic
lola: sara is running 10 secs || 81284 markings, 160766 edges, 5325 markings/sec, 10 secs
lola: sara is running 15 secs || 109581 markings, 214489 edges, 5659 markings/sec, 15 secs
lola: sara is running 20 secs || 136048 markings, 267600 edges, 5293 markings/sec, 20 secs
lola: sara is running 25 secs || 162523 markings, 321624 edges, 5295 markings/sec, 25 secs
lola: sara is running 30 secs || 190864 markings, 375443 edges, 5668 markings/sec, 30 secs
lola: sara is running 35 secs || 217040 markings, 427918 edges, 5235 markings/sec, 35 secs
lola: sara is running 40 secs || 243212 markings, 481404 edges, 5234 markings/sec, 40 secs
lola: sara is running 45 secs || 271154 markings, 534269 edges, 5588 markings/sec, 45 secs
lola: sara is running 50 secs || 297156 markings, 586360 edges, 5200 markings/sec, 50 secs
lola: sara is running 55 secs || 323350 markings, 638870 edges, 5239 markings/sec, 55 secs
lola: sara is running 60 secs || 350381 markings, 692284 edges, 5406 markings/sec, 60 secs
lola: sara is running 65 secs || 377061 markings, 744330 edges, 5336 markings/sec, 65 secs
lola: sara is running 70 secs || 403379 markings, 797112 edges, 5264 markings/sec, 70 secs
lola: sara is running 75 secs || 430090 markings, 851362 edges, 5342 markings/sec, 75 secs
lola: state equation: solution produced
lola: SUBRESULT
lola: result: yes
lola: produced by: state equation
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 7 will run for 328 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F (FIREABLE(t7161)))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 3 literals and 1 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-7.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-7.sara.
lola: sara is running 0 secs || 27996 markings, 53398 edges, 5599 markings/sec, 0 secs
lola: sara is running 5 secs || 54236 markings, 105983 edges, 5248 markings/sec, 5 secs
sara: place or transition ordering is non-deterministic
lola: sara is running 10 secs || 80786 markings, 159298 edges, 5310 markings/sec, 10 secs
lola: state equation: solution produced
lola: SUBRESULT
lola: result: yes
lola: produced by: state equation
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 8 will run for 367 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G (((FIREABLE(t4720) AND FIREABLE(t1563)) OR NOT FIREABLE(t1784) OR (NOT FIREABLE(t648) AND FIREABLE(t7171)) OR FIREABLE(t134))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: State predicate is contradiction.
lola: SUBRESULT
lola: result: yes
lola: produced by: state equation
lola: The predicate is invariant.
lola: ========================================
lola: subprocess 9 will run for 419 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G ((NOT FIREABLE(t7372) OR FIREABLE(t2560) OR NOT FIREABLE(t1467))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 5 literals and 1 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-9.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-9.sara.
lola: sara is running 0 secs || 27891 markings, 53403 edges, 5578 markings/sec, 0 secs
lola: sara is running 5 secs || 54221 markings, 105976 edges, 5266 markings/sec, 5 secs
sara: place or transition ordering is non-deterministic
lola: sara is running 10 secs || 80131 markings, 158495 edges, 5182 markings/sec, 10 secs
lola: state equation: solution impossible
lola: SUBRESULT
lola: result: yes
lola: produced by: state equation
lola: The predicate is invariant.
lola: ========================================
lola: subprocess 10 will run for 486 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G ((NOT FIREABLE(t7038) AND NOT FIREABLE(t1123) AND NOT FIREABLE(t5043) AND (FIREABLE(t4486) OR FIREABLE(t2526) OR FIREABLE(t7345) OR NOT FIREABLE(t2103)))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 17 literals and 6 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-10.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-10.sara.
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 11 will run for 583 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F (((NOT FIREABLE(t7204) OR NOT FIREABLE(t4335)) AND FIREABLE(t6255) AND FIREABLE(t4208))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 12 literals and 4 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-11.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-11.sara.
lola: sara is running 0 secs || 27693 markings, 53000 edges, 5539 markings/sec, 0 secs
lola: sara is running 5 secs || 53641 markings, 104746 edges, 5190 markings/sec, 5 secs
sara: place or transition ordering is non-deterministic
lola: sara is running 10 secs || 79635 markings, 157004 edges, 5199 markings/sec, 10 secs
lola: sara is running 15 secs || 107142 markings, 210176 edges, 5501 markings/sec, 15 secs
lola: sara is running 20 secs || 132164 markings, 259967 edges, 5004 markings/sec, 20 secs
lola: sara is running 25 secs || 157957 markings, 311412 edges, 5159 markings/sec, 25 secs
lola: sara is running 30 secs || 184120 markings, 363550 edges, 5233 markings/sec, 30 secs
lola: state equation: solution produced
lola: SUBRESULT
lola: result: yes
lola: produced by: state equation
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 12 will run for 720 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G (((NOT FIREABLE(t3265) OR NOT FIREABLE(t3664)) AND (NOT FIREABLE(t1836) OR NOT FIREABLE(t3661) OR NOT FIREABLE(t3860)))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 5 literals and 2 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-12.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-12.sara.
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 13 will run for 960 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: E (F (((FIREABLE(t3307) OR FIREABLE(t4967)) AND (NOT FIREABLE(t2748) OR (NOT FIREABLE(t2309) AND NOT FIREABLE(t1457))))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 10 literals and 4 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-13.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-13.sara.
lola: SUBRESULT
lola: result: yes
lola: produced by: state space
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 14 will run for 1440 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G ((NOT FIREABLE(t7198) OR NOT FIREABLE(t2606) OR FIREABLE(t2625) OR NOT FIREABLE(t2727))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 6 literals and 1 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-14.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-14.sara.
lola: SUBRESULT
lola: result: no
lola: produced by: state space
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 15 will run for 2880 seconds at most (--localtimelimit=-1)
lola: ========================================
lola: ...considering subproblem: A (G ((FIREABLE(t4878) OR NOT FIREABLE(t2863) OR (NOT FIREABLE(t4285) AND FIREABLE(t4307)) OR FIREABLE(t7221))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 808 bytes per marking, with 10 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: state equation: Generated DNF with 24 literals and 6 conjunctive subformulas
lola: state equation: write sara problem file to FlexibleBarrier-PT-22b-ReachabilityFireability-15.sara
lola: state equation: calling and running sara
sara: try reading problem file FlexibleBarrier-PT-22b-ReachabilityFireability-15.sara.
lola: sara is running 0 secs || 28089 markings, 53790 edges, 5618 markings/sec, 0 secs
lola: sara is running 5 secs || 54360 markings, 106237 edges, 5254 markings/sec, 5 secs
sara: place or transition ordering is non-deterministic
lola: sara is running 10 secs || 80975 markings, 159510 edges, 5323 markings/sec, 10 secs
lola: sara is running 15 secs || 108405 markings, 212793 edges, 5486 markings/sec, 15 secs
lola: sara is running 20 secs || 134618 markings, 266307 edges, 5243 markings/sec, 20 secs
lola: sara is running 25 secs || 159965 markings, 328314 edges, 5069 markings/sec, 25 secs
lola: sara is running 30 secs || 187823 markings, 381774 edges, 5572 markings/sec, 30 secs
lola: sara is running 35 secs || 213996 markings, 434852 edges, 5235 markings/sec, 35 secs
lola: sara is running 40 secs || 240210 markings, 487190 edges, 5243 markings/sec, 40 secs
lola: sara is running 45 secs || 268182 markings, 540874 edges, 5594 markings/sec, 45 secs
lola: sara is running 50 secs || 294597 markings, 594452 edges, 5283 markings/sec, 50 secs
lola: sara is running 55 secs || 320986 markings, 647615 edges, 5278 markings/sec, 55 secs
lola: sara is running 60 secs || 349010 markings, 701778 edges, 5605 markings/sec, 60 secs
lola: sara is running 65 secs || 375619 markings, 754957 edges, 5322 markings/sec, 65 secs
lola: sara is running 70 secs || 401939 markings, 808353 edges, 5264 markings/sec, 70 secs
lola: sara is running 75 secs || 429857 markings, 861918 edges, 5584 markings/sec, 75 secs
lola: sara is running 80 secs || 456268 markings, 914655 edges, 5282 markings/sec, 80 secs
lola: sara is running 85 secs || 479629 markings, 981331 edges, 4672 markings/sec, 85 secs
lola: sara is running 90 secs || 499569 markings, 1064883 edges, 3988 markings/sec, 90 secs
lola: state equation: solution produced
lola: SUBRESULT
lola: result: no
lola: produced by: state equation
lola: The predicate is not invariant.
lola: ========================================
lola: RESULT
lola:
SUMMARY: yes yes no yes unknown no yes yes yes yes no yes no yes no no
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-0 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-1 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-2 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-3 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-4 CANNOT_COMPUTE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-5 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-6 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-7 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-8 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-9 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-11 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-13 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-14 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
FORMULA FlexibleBarrier-PT-22b-ReachabilityFireability-15 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL USE_NUPN
----- Kill lola and sara stdout -----
----- Finished stdout -----
BK_STOP 1496502478568
--------------------
content from stderr:
----- Start make prepare stderr -----
----- Start make result stderr -----
----- Start make result stderr -----
----- Kill lola and sara stderr -----
----- Finished stderr -----
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="FlexibleBarrier-PT-22b"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="lola"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
# 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
tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-22b.tgz
mv FlexibleBarrier-PT-22b execution
# this is for BenchKit: explicit launching of the test
cd execution
echo "====================================================================="
echo " Generated by BenchKit 2-3254"
echo " Executing tool lola"
echo " Input is FlexibleBarrier-PT-22b, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r188-blw3-149581034400180"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '
echo "FORMULA_NAME $x"
done
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 ;