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

Namemps-v2-20-10/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-core2536-691.opb
MD5SUM127ff6a7c180d4ca2c922cfd5e8d4802
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 939008000000000
Optimality of the best value was proved NO
Number of terms in the objective function 15554
Biggest coefficient in the objective function 53687091200000000000
Number of bits for the biggest coefficient in the objective function 66
Sum of the numbers in the objective function 215744503004511174656
Number of bits of the sum of numbers in the objective function 68
Biggest number in a constraint 10240000000000000000000
Number of bits of the biggest number in a constraint 74
Biggest sum of numbers in a constraint 10455744503004511862784
Number of bits of the biggest sum of numbers74
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1203.88
Number of variables15554
Total number of constraints17823
Number of constraints which are clauses2536
Number of constraints which are cardinality constraints (but not clauses)15286
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint15554

Trace number 10244

Launcher Data

LAUNCH ON wulflinc31 THE 2005-09-23 17:41:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8985 boxname=wulflinc31 idbench=781 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  127ff6a7c180d4ca2c922cfd5e8d4802  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-core2536-691.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-core2536-691.opb
IDLAUNCH: 8985
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
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		: 451.047
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        915180 kB
Buffers:         19352 kB
Cached:          80948 kB
SwapCached:          0 kB
Active:          45976 kB
Inactive:        57220 kB
HighTotal:      131008 kB
HighFree:        46200 kB
LowTotal:       903652 kB
LowFree:        868980 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            10712 kB
Committed_AS:    63664 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:44:04 (client local time) WITH STATUS 1 IN 124.922 SECONDS
stats: 8985 7 124.922 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

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/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22028838 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9538/statm): 373 2 364 364 0 9 0
[pid=9538] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-core2536-691.opb

[startup+10.0025 s]
Raw data (loadavg): 0.93 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 1837 0 0 0 990 7 0 0 25 0 1 0 22028838 7417856 1513 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9538/statm): 1811 1513 364 364 0 1447 0
[pid=9538] vsize: 7244
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 7244

[startup+20.0024 s]
Raw data (loadavg): 0.94 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 27471 0 0 0 1925 69 0 0 25 0 1 0 22028838 89337856 16331 4294967295 134512640 135987407 3221224560 3217983656 135544177 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9538/statm): 21811 16331 364 364 0 21447 0
[pid=9538] vsize: 87244
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 87244

[startup+30.0053 s]
Raw data (loadavg): 0.95 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 57884 0 0 0 2858 134 0 0 25 0 1 0 22028838 192335872 35537 4294967295 134512640 135987407 3221224560 3217635900 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 46957 35537 364 364 0 46593 0
[pid=9538] vsize: 187828
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 187828

[startup+40.0053 s]
Raw data (loadavg): 0.95 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 90465 0 0 0 3788 200 0 0 25 0 1 0 22028838 376573952 58199 4294967295 134512640 135987407 3221224560 3217525408 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 91937 58203 364 364 0 91573 0
[pid=9538] vsize: 367748
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 367748

[startup+50.0062 s]
Raw data (loadavg): 0.96 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 118087 0 0 0 4724 261 0 0 25 0 1 0 22028838 380743680 73337 4294967295 134512640 135987407 3221224560 3218138128 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 92955 73337 364 364 0 92591 0
[pid=9538] vsize: 371820
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 371820

[startup+60.0061 s]
Raw data (loadavg): 0.97 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 136545 0 0 0 5680 303 0 0 25 0 1 0 22028838 404533248 91574 4294967295 134512640 135987407 3221224560 3217988944 134635423 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 98763 91574 364 364 0 98399 0
[pid=9538] vsize: 395052
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 395052

[startup+70.0061 s]
Raw data (loadavg): 0.97 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 202112 0 0 0 6539 439 0 0 25 0 1 0 22028838 643006464 112995 4294967295 134512640 135987407 3221224560 3217958176 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 156984 112995 364 364 0 156620 0
[pid=9538] vsize: 627936
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 627936

[startup+80.007 s]
Raw data (loadavg): 0.97 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 217849 0 0 0 7506 470 0 0 25 0 1 0 22028838 696971264 128542 4294967295 134512640 135987407 3221224560 3216940768 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 170159 128542 364 364 0 169795 0
[pid=9538] vsize: 680636
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 680636

[startup+90.0069 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 235810 0 0 0 8466 508 0 0 25 0 1 0 22028838 720220160 146287 4294967295 134512640 135987407 3221224560 3217066008 135486800 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 175835 146287 364 364 0 175471 0
[pid=9538] vsize: 703340
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 703340

[startup+100.008 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 253757 0 0 0 9424 549 0 0 25 0 1 0 22028838 743333888 164019 4294967295 134512640 135987407 3221224560 3217663504 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 181478 164021 364 364 0 181114 0
[pid=9538] vsize: 725912
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 725912

[startup+110.008 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 268028 0 0 0 10391 580 0 0 25 0 1 0 22028838 812048384 178119 4294967295 134512640 135987407 3221224560 3218129536 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 198254 178120 364 364 0 197890 0
[pid=9538] vsize: 793016
Current children cumulated CPU time (s) 109.71
Current children cumulated vsize (Kb) 793016

[startup+120.008 s]
Raw data (loadavg): 0.99 0.97 0.94 2/55 9538
Raw data (/proc/9538/stat): 9538 (pb2sat) R 9537 9538 4005 0 -1 0 285007 0 0 0 11352 616 0 0 25 0 1 0 22028838 835805184 194898 4294967295 134512640 135987407 3221224560 3219771296 135328502 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9538/statm): 204054 194898 364 364 0 203690 0
[pid=9538] vsize: 816216
Current children cumulated CPU time (s) 119.68
Current children cumulated vsize (Kb) 816216
One traced child (pid=9538) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 125.247
CPU time (s): 124.922
CPU user time (s): 118.354
CPU system time (s): 6.568
CPU usage (%): 99.7406
Max. virtual memory (cumulated for all children) (Kb): 816216

Verifier Data

ERROR: no interpretation found !