Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:
  1. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser !
  3. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  4. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Nameweb/uclid_pb_benchmarks/normalized-ooo.rf10.ucl.opb
MD5SUMa6997171dcc57638d93d44e87488aa8f
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 39
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 132
Number of bits of the biggest sum of numbers8
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark46.8799
Number of variables18069
Total number of constraints52475
Number of constraints which are clauses51555
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints920
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 9781

Launcher Data

LAUNCH ON wulflinc32 THE 2005-09-23 15:20:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8531 boxname=wulflinc32 idbench=327 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a6997171dcc57638d93d44e87488aa8f  /oldhome/oroussel/tmp/wulflinc32/normalized-ooo.rf10.ucl.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc32/normalized-ooo.rf10.ucl.opb
IDLAUNCH: 8531
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.145
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.145
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034724 kB
MemFree:        930124 kB
Buffers:         14416 kB
Cached:          70380 kB
SwapCached:          0 kB
Active:          43320 kB
Inactive:        44420 kB
HighTotal:      131072 kB
HighFree:        56224 kB
LowTotal:       903652 kB
LowFree:        873900 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:            11196 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 15:23:23 (client local time) WITH STATUS 20 IN 148.593 SECONDS
stats: 8531 7 148.593 20

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...

c Decision: 962/32527	Time: 10.2644/86400
c Decision: 1036/32527	Time: 17.2454/86400
c Decision: 1037/32527	Time: 23.3924/86400
c Decision: 1057/32527	Time: 28.4417/86400
c Decision: 1059/32527	Time: 37.6053/86400
c Decision: 1059/32527	Time: 41.9936/86400
c Decision: 1059/32527	Time: 47.7887/86400
c Decision: 1059/32527	Time: 51.7981/86400
c Decision: 1059/32527	Time: 56.3354/86400
c Decision: 1059/32527	Time: 60.3388/86400
c Decision: 1293/32527	Time: 69.4854/86400
c Decision: 1310/32527	Time: 74.0787/86400
c Decision: 3885/32527	Time: 80.0968/86400
c Decision: 3908/32527	Time: 90.6682/86400
c Decision: 4004/32527	Time: 98.638/86400
c Decision: 4004/32527	Time: 102.98/86400
c Decision: 4004/32527	Time: 107.413/86400
c Decision: 4036/32527	Time: 115.87/86400
c Decision: 4036/32527	Time: 120.709/86400
c Decision: 4038/32527	Time: 130.776/86400
s UNSATISFIABLE

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21182499 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 373 2 364 364 0 9 0
[pid=6902] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc32/normalized-ooo.rf10.ucl.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.95 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 4825 0 0 0 965 19 0 0 25 0 1 0 21182499 16801792 3440 4294967295 134512640 135987407 3221224560 3221223344 134812361 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 4102 3440 364 364 0 3738 0
[pid=6902] vsize: 16408
Current children cumulated CPU time (s) 9.84
Current children cumulated vsize (Kb) 16408

[startup+20.0038 s]
Raw data (loadavg): 0.94 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 5219 0 0 0 1936 29 0 0 25 0 1 0 21182499 17997824 3770 4294967295 134512640 135987407 3221224560 3221223248 134811901 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 4394 3770 364 364 0 4030 0
[pid=6902] vsize: 17576
Current children cumulated CPU time (s) 19.65
Current children cumulated vsize (Kb) 17576

[startup+30.0045 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 5504 0 0 0 2908 39 0 0 25 0 1 0 21182499 20094976 3927 4294967295 134512640 135987407 3221224560 3221223248 134811775 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 4906 3927 364 364 0 4542 0
[pid=6902] vsize: 19624
Current children cumulated CPU time (s) 29.47
Current children cumulated vsize (Kb) 19624

[startup+40.0043 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 5801 0 0 0 3878 50 0 0 25 0 1 0 21182499 20557824 4160 4294967295 134512640 135987407 3221224560 3221223180 134931504 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 5019 4160 364 364 0 4655 0
[pid=6902] vsize: 20076
Current children cumulated CPU time (s) 39.28
Current children cumulated vsize (Kb) 20076

[startup+50.0051 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 6175 0 0 0 4847 62 0 0 25 0 1 0 21182499 21082112 4406 4294967295 134512640 135987407 3221224560 3221223248 134812053 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 5147 4406 364 364 0 4783 0
[pid=6902] vsize: 20588
Current children cumulated CPU time (s) 49.09
Current children cumulated vsize (Kb) 20588

[startup+60.0049 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 6335 0 0 0 5824 70 0 0 25 0 1 0 21182499 21245952 4438 4294967295 134512640 135987407 3221224560 3221223312 134801245 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 5187 4438 364 364 0 4823 0
[pid=6902] vsize: 20748
Current children cumulated CPU time (s) 58.94
Current children cumulated vsize (Kb) 20748

[startup+70.0056 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 6571 0 0 0 6799 78 0 0 25 0 1 0 21182499 21245952 4546 4294967295 134512640 135987407 3221224560 3221223248 134811813 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 5187 4546 364 364 0 4823 0
[pid=6902] vsize: 20748
Current children cumulated CPU time (s) 68.77
Current children cumulated vsize (Kb) 20748

[startup+80.0064 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 6849 0 0 0 7776 86 0 0 25 0 1 0 21182499 25559040 4760 4294967295 134512640 135987407 3221224560 3221223248 134811729 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 6240 4760 364 364 0 5876 0
[pid=6902] vsize: 24960
Current children cumulated CPU time (s) 78.62
Current children cumulated vsize (Kb) 24960

[startup+90.0062 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 7031 0 0 0 8753 96 0 0 25 0 1 0 21182499 25858048 4814 4294967295 134512640 135987407 3221224560 3221223248 134811805 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 6313 4814 364 364 0 5949 0
[pid=6902] vsize: 25252
Current children cumulated CPU time (s) 88.49
Current children cumulated vsize (Kb) 25252

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 7129 0 0 0 9729 104 0 0 25 0 1 0 21182499 25858048 4848 4294967295 134512640 135987407 3221224560 3221223248 134811775 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 6313 4848 364 364 0 5949 0
[pid=6902] vsize: 25252
Current children cumulated CPU time (s) 98.33
Current children cumulated vsize (Kb) 25252

[startup+110.008 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 7510 0 0 0 10704 113 0 0 25 0 1 0 21182499 25989120 5165 4294967295 134512640 135987407 3221224560 3221223136 134931837 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 6345 5165 364 364 0 5981 0
[pid=6902] vsize: 25380
Current children cumulated CPU time (s) 108.17
Current children cumulated vsize (Kb) 25380

[startup+120.008 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 7684 0 0 0 11682 121 0 0 23 0 1 0 21182499 26124288 5211 4294967295 134512640 135987407 3221224560 3221223376 134824259 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 6378 5211 364 364 0 6014 0
[pid=6902] vsize: 25512
Current children cumulated CPU time (s) 118.03
Current children cumulated vsize (Kb) 25512

[startup+130.008 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 7845 0 0 0 12655 128 0 0 25 0 1 0 21182499 26255360 5244 4294967295 134512640 135987407 3221224560 3221223248 134811915 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 6410 5244 364 364 0 6046 0
[pid=6902] vsize: 25640
Current children cumulated CPU time (s) 127.83
Current children cumulated vsize (Kb) 25640

[startup+140.009 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 8176 0 0 0 13635 138 0 0 25 0 1 0 21182499 26255360 5511 4294967295 134512640 135987407 3221224560 3221223248 134811839 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 6410 5511 364 364 0 6046 0
[pid=6902] vsize: 25640
Current children cumulated CPU time (s) 137.73
Current children cumulated vsize (Kb) 25640

[startup+150.01 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 6902
Raw data (/proc/6902/stat): 6902 (pb2sat) R 6901 6902 4005 0 -1 0 8535 0 0 0 14621 143 0 0 25 0 1 0 21182499 26382336 5870 4294967295 134512640 135987407 3221224560 3221223248 134812053 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/6902/statm): 6441 5870 364 364 0 6077 0
[pid=6902] vsize: 25764
Current children cumulated CPU time (s) 147.64
Current children cumulated vsize (Kb) 25764
One traced child (pid=6902) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 150.97
CPU time (s): 148.593
CPU user time (s): 147.142
CPU system time (s): 1.45178
CPU usage (%): 98.4258
Max. virtual memory (cumulated for all children) (Kb): 25764

Verifier Data

ERROR: no interpretation found !