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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-ship04s.opb
MD5SUM0b425344c538e99a27247a487d2e5952
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
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 43740
Biggest coefficient in the objective function 1977295568896000
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 276588440762806557
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 1977295568896000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 276588440762806557
Number of bits of the biggest sum of numbers58
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark11.8382
Number of variables43740
Total number of constraints352
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints352
Minimum length of a constraint30
Maximum length of a constraint1980

Trace number 9924

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-23 16:11:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8677 boxname=wulflinc29 idbench=473 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0b425344c538e99a27247a487d2e5952  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-ship04s.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-ship04s.opb
IDLAUNCH: 8677
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        923596 kB
Buffers:         11608 kB
Cached:          81960 kB
SwapCached:          0 kB
Active:          48200 kB
Inactive:        48308 kB
HighTotal:      131008 kB
HighFree:        49392 kB
LowTotal:       903652 kB
LowFree:        874204 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8884 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:13:59 (client local time) WITH STATUS 0 IN 132.707 SECONDS
stats: 8677 7 132.707 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/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21490257 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 373 2 364 364 0 9 0
[pid=8435] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-ship04s.opb

[startup+10.0022 s]
Raw data (loadavg): 0.93 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 2511 0 0 0 992 6 0 0 25 0 1 0 21490257 9371648 1825 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 2288 1825 364 364 0 1924 0
[pid=8435] vsize: 9152
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9152

[startup+20.002 s]
Raw data (loadavg): 0.94 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 3055 0 0 0 1991 8 0 0 25 0 1 0 21490257 10858496 2360 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 2651 2360 364 364 0 2287 0
[pid=8435] vsize: 10604
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 10604

[startup+30.0027 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 4424 0 0 0 2987 11 0 0 25 0 1 0 21490257 15769600 2984 4294967295 134512640 135987407 3221224560 3221221872 134555861 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 3850 2984 364 364 0 3486 0
[pid=8435] vsize: 15400
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 15400

[startup+40.0035 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 4695 0 0 0 3986 12 0 0 25 0 1 0 21490257 16445440 3251 4294967295 134512640 135987407 3221224560 3221221872 134555871 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 4015 3251 364 364 0 3651 0
[pid=8435] vsize: 16060
Current children cumulated CPU time (s) 39.98
Current children cumulated vsize (Kb) 16060

[startup+50.0043 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 32402 0 0 0 4920 76 0 0 25 0 1 0 21490257 103018496 21017 4294967295 134512640 135987407 3221224560 3220626320 134636923 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 25151 21017 364 364 0 24787 0
[pid=8435] vsize: 100604
Current children cumulated CPU time (s) 49.96
Current children cumulated vsize (Kb) 100604

[startup+60.0041 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 59579 0 0 0 5860 134 0 0 25 0 1 0 21490257 178434048 36962 4294967295 134512640 135987407 3221224560 3220894208 134854872 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 43563 36962 364 364 0 43199 0
[pid=8435] vsize: 174252
Current children cumulated CPU time (s) 59.94
Current children cumulated vsize (Kb) 174252

[startup+70.0039 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 98968 0 0 0 6773 218 0 0 25 0 1 0 21490257 328724480 54149 4294967295 134512640 135987407 3221224560 3221000416 134877708 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 80255 54149 364 364 0 79891 0
[pid=8435] vsize: 321020
Current children cumulated CPU time (s) 69.91
Current children cumulated vsize (Kb) 321020

[startup+80.0047 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 114550 0 0 0 7738 252 0 0 25 0 1 0 21490257 332509184 69472 4294967295 134512640 135987407 3221224560 3220707440 134856412 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 81179 69472 364 364 0 80815 0
[pid=8435] vsize: 324716
Current children cumulated CPU time (s) 79.9
Current children cumulated vsize (Kb) 324716

[startup+90.0046 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 156669 0 0 0 8647 339 0 0 25 0 1 0 21490257 461262848 91964 4294967295 134512640 135987407 3221224560 3220919316 134640047 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 112613 91964 364 364 0 112249 0
[pid=8435] vsize: 450452
Current children cumulated CPU time (s) 89.86
Current children cumulated vsize (Kb) 450452

[startup+100.006 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 192857 0 0 0 9566 420 0 0 25 0 1 0 21490257 599265280 103386 4294967295 134512640 135987407 3221224560 3221083372 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 146305 103386 364 364 0 145941 0
[pid=8435] vsize: 585220
Current children cumulated CPU time (s) 99.86
Current children cumulated vsize (Kb) 585220

[startup+110.007 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 208428 0 0 0 10529 457 0 0 25 0 1 0 21490257 602644480 118695 4294967295 134512640 135987407 3221224560 3221105536 135486752 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 147130 118695 364 364 0 146766 0
[pid=8435] vsize: 588520
Current children cumulated CPU time (s) 109.86
Current children cumulated vsize (Kb) 588520

[startup+120.008 s]
Raw data (loadavg): 0.99 0.97 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 224593 0 0 0 11490 495 0 0 25 0 1 0 21490257 607240192 134593 4294967295 134512640 135987407 3221224560 3220867456 134533897 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 148252 134593 364 364 0 147888 0
[pid=8435] vsize: 593008
Current children cumulated CPU time (s) 119.85
Current children cumulated vsize (Kb) 593008

[startup+130.009 s]
Raw data (loadavg): 0.99 0.97 0.94 2/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) R 8434 8435 4005 0 -1 0 237724 0 0 0 12457 528 0 0 25 0 1 0 21490257 662167552 147513 4294967295 134512640 135987407 3221224560 3221110076 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8435/statm): 161662 147513 364 364 0 161298 0
[pid=8435] vsize: 646648
Current children cumulated CPU time (s) 129.85
Current children cumulated vsize (Kb) 646648



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+132.484 s]
Raw data (loadavg): 0.99 0.97 0.94 1/55 8435
Raw data (/proc/8435/stat): 8435 (pb2sat) T 8434 8435 4005 0 -1 0 241786 0 0 0 12694 538 0 0 25 0 1 0 21490257 950493184 151516 4294967295 134512640 135987407 3221224560 3220665984 135544035 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/8435/statm): 232054 151516 364 364 0 231690 0
[pid=8435] vsize: 928216
Current children cumulated CPU time (s) 132.32
Current children cumulated vsize (Kb) 928216

Sending SIGTERM to -8435
Sleeping 2 seconds
Sending SIGKILL to -8435
One traced child (pid=8435) 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): 134.802
CPU time (s): 132.707
CPU user time (s): 127.005
CPU system time (s): 5.70213
CPU usage (%): 98.4458
Max. virtual memory (cumulated for all children) (Kb): 928216

Verifier Data

ERROR: no interpretation found !