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-v2-13-7/plato.asu.edu/pub/unibo/normalized-mps-v2-13-7-dc1c.opb
MD5SUM52ee1c9a03c9aae47fd9a079818acfac
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 58949212683404800
Optimality of the best value was proved NO
Number of terms in the objective function 41560
Biggest coefficient in the objective function 524288000000000000
Number of bits for the biggest coefficient in the objective function 59
Sum of the numbers in the objective function 6649307310053731437
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 524288000000000000
Number of bits of the biggest number in a constraint 59
Biggest sum of numbers in a constraint 6777307310053731437
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1228.49
Number of variables41560
Total number of constraints10029
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)8381
Number of constraints which are nor clauses,nor cardinality constraints1648
Minimum length of a constraint1
Maximum length of a constraint41560

Trace number 10598

Launcher Data

LAUNCH ON wulflinc7 THE 2005-09-23 19:12:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9348 boxname=wulflinc7 idbench=1144 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  52ee1c9a03c9aae47fd9a079818acfac  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-dc1c.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-dc1c.opb
IDLAUNCH: 9348
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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:        908332 kB
Buffers:         13444 kB
Cached:          95288 kB
SwapCached:          0 kB
Active:          50696 kB
Inactive:        60952 kB
HighTotal:      131008 kB
HighFree:        35448 kB
LowTotal:       903652 kB
LowFree:        872884 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             9032 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 19:15:04 (client local time) WITH STATUS 0 IN 122.933 SECONDS
stats: 9348 7 122.933 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22630956 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 373 2 364 364 0 9 0
[pid=11937] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-dc1c.opb

[startup+10.0012 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 2535 0 0 0 993 5 0 0 25 0 1 0 22630956 9502720 1848 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 2320 1848 364 364 0 1956 0
[pid=11937] vsize: 9280
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9280

[startup+20.0019 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 4171 0 0 0 1988 10 0 0 25 0 1 0 22630956 15224832 2737 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 3717 2737 364 364 0 3353 0
[pid=11937] vsize: 14868
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 14868

[startup+30.0015 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 4426 0 0 0 2987 11 0 0 25 0 1 0 22630956 15765504 2986 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 3849 2986 364 364 0 3485 0
[pid=11937] vsize: 15396
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 15396

[startup+40.0021 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 18988 0 0 0 3949 47 0 0 25 0 1 0 22630956 71917568 13087 4294967295 134512640 135987407 3221224560 3221218828 135500012 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 17558 13087 364 364 0 17194 0
[pid=11937] vsize: 70232
Current children cumulated CPU time (s) 39.96
Current children cumulated vsize (Kb) 70232

[startup+50.0028 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 51003 0 0 0 4875 118 0 0 25 0 1 0 22630956 162209792 28465 4294967295 134512640 135987407 3221224560 3221210428 134892452 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 39602 28465 364 364 0 39238 0
[pid=11937] vsize: 158408
Current children cumulated CPU time (s) 49.93
Current children cumulated vsize (Kb) 158408

[startup+60.0024 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 92411 0 0 0 5785 207 0 0 25 0 1 0 22630956 280743936 47643 4294967295 134512640 135987407 3221224560 3221204540 134635332 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 68541 47643 364 364 0 68177 0
[pid=11937] vsize: 274164
Current children cumulated CPU time (s) 59.92
Current children cumulated vsize (Kb) 274164

[startup+70.0031 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 108246 0 0 0 6745 246 0 0 25 0 1 0 22630956 319311872 63221 4294967295 134512640 135987407 3221224560 3221155072 134878014 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 77957 63221 364 364 0 77593 0
[pid=11937] vsize: 311828
Current children cumulated CPU time (s) 69.91
Current children cumulated vsize (Kb) 311828

[startup+80.0037 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 150790 0 0 0 7658 329 0 0 25 0 1 0 22630956 517365760 104555 4294967295 134512640 135987407 3221224560 3221211872 134861431 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 126310 104555 364 364 0 125946 0
[pid=11937] vsize: 505240
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 505240

[startup+90.0043 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 188606 0 0 0 8571 416 0 0 25 0 1 0 22630956 587984896 99160 4294967295 134512640 135987407 3221224560 3221188208 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 143551 99160 364 364 0 143187 0
[pid=11937] vsize: 574204
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 574204

[startup+100.005 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 203508 0 0 0 9534 452 0 0 25 0 1 0 22630956 591634432 113815 4294967295 134512640 135987407 3221224560 3221200640 134893003 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 144442 113815 364 364 0 144078 0
[pid=11937] vsize: 577768
Current children cumulated CPU time (s) 99.86
Current children cumulated vsize (Kb) 577768

[startup+110.005 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 220153 0 0 0 10491 495 0 0 25 0 1 0 22630956 596094976 130187 4294967295 134512640 135987407 3221224560 3221215500 135480487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 145531 130187 364 364 0 145167 0
[pid=11937] vsize: 582124
Current children cumulated CPU time (s) 109.86
Current children cumulated vsize (Kb) 582124

[startup+120.005 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) R 11936 11937 4059 0 -1 0 234267 0 0 0 11456 530 0 0 25 0 1 0 22630956 650076160 144066 4294967295 134512640 135987407 3221224560 3221210516 135480412 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11937/statm): 158710 144066 364 364 0 158346 0
[pid=11937] vsize: 634840
Current children cumulated CPU time (s) 119.86
Current children cumulated vsize (Kb) 634840



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+122.721 s]
Raw data (loadavg): 0.99 1.00 0.94 1/55 11937
Raw data (/proc/11937/stat): 11937 (pb2sat) T 11936 11937 4059 0 -1 0 242815 0 0 0 11709 547 0 0 25 0 1 0 22630956 943808512 152401 4294967295 134512640 135987407 3221224560 3221206796 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/11937/statm): 230422 152401 364 364 0 230058 0
[pid=11937] vsize: 921688
Current children cumulated CPU time (s) 122.56
Current children cumulated vsize (Kb) 921688

Sending SIGTERM to -11937
Sleeping 2 seconds
Sending SIGKILL to -11937
One traced child (pid=11937) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 125.036
CPU time (s): 122.933
CPU user time (s): 117.147
CPU system time (s): 5.78612
CPU usage (%): 98.3183
Max. virtual memory (cumulated for all children) (Kb): 921688

Verifier Data

ERROR: no interpretation found !