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).
  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

Namenormalized-opb/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-qiu.opb
MD5SUM9029e59d305ed70ef352ded3c086e2a0
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 7968
Biggest coefficient in the objective function 9098351345664
Number of bits for the biggest coefficient in the objective function 44
Sum of the numbers in the objective function 4803935111035752
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 9098351345664
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 4803935111035752
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.204968
Number of variables23808
Total number of constraints1240
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)48
Number of constraints which are nor clauses,nor cardinality constraints1192
Minimum length of a constraint1
Maximum length of a constraint5940

Trace number 42477 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 08:45:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25697 boxname=wulflinc4 idbench=997 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9029e59d305ed70ef352ded3c086e2a0  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-qiu.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-qiu.opb
IDLAUNCH: 25697
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        692736 kB
Buffers:         34548 kB
Cached:         284992 kB
SwapCached:        944 kB
Active:          33996 kB
Inactive:       287716 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        692484 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14556 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 08:47:33 (client local time) WITH STATUS 1 IN 113.656 SECONDS
stats: 25697 7 113.656 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.93 0.97 0.91 2/54 24024
Raw data (stat): 24024 (runsolver) R 24023 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969417673 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0011 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 20153 0 0 0 952 46 0 0 25 0 1 0 969417673 59482112 12236 4294967295 134512640 135730672 3221224576 3218606856 135284290 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 14522 12236 301 301 0 14221 0
vsize: 58088
[startup+20.0017 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 51192 0 0 0 1883 115 0 0 25 0 1 0 969417673 165060608 28996 4294967295 134512640 135730672 3221224576 3218907824 134546470 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 40298 28996 301 301 0 39997 0
vsize: 161192
[startup+30.0012 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 81387 0 0 0 2821 177 0 0 25 0 1 0 969417673 240648192 49272 4294967295 134512640 135730672 3221224576 3219156656 134788136 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 58752 49273 301 301 0 58451 0
vsize: 235008
[startup+40.0075 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 108226 0 0 0 3763 236 0 0 25 0 1 0 969417673 335753216 63611 4294967295 134512640 135730672 3221224576 3219615376 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81971 63611 301 301 0 81670 0
vsize: 327884
[startup+50.0155 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 128697 0 0 0 4717 283 0 0 25 0 1 0 969417673 365084672 83845 4294967295 134512640 135730672 3221224576 3220135056 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 89132 83846 301 301 0 88831 0
vsize: 356528
[startup+60.0158 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 190161 0 0 0 5591 409 0 0 25 0 1 0 969417673 588685312 102195 4294967295 134512640 135730672 3221224576 3220144016 134607963 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 143722 102196 301 301 0 143421 0
vsize: 574888
[startup+70.0248 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 202049 0 0 0 6566 436 0 0 25 0 1 0 969417673 622239744 113870 4294967295 134512640 135730672 3221224576 3220412800 135282737 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 151914 113870 301 301 0 151613 0
vsize: 607656
[startup+80.1299 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 220678 0 0 0 7534 478 0 0 25 0 1 0 969417673 643325952 132258 4294967295 134512640 135730672 3221224576 3220915640 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157062 132258 301 301 0 156761 0
vsize: 628248
[startup+90.1306 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 234843 0 0 0 8502 510 0 0 25 0 1 0 969417673 663060480 146254 4294967295 134512640 135730672 3221224576 3218594724 135281187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161880 146254 301 301 0 161579 0
vsize: 647520
[startup+100.132 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 243173 0 0 0 9483 529 0 0 25 0 1 0 969417673 713392128 154435 4294967295 134512640 135730672 3221224576 3218864336 134550216 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 174168 154435 301 301 0 173867 0
vsize: 696672
[startup+110.133 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 252932 0 0 0 10460 551 0 0 25 0 1 0 969417673 714170368 163965 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 174358 163965 301 301 0 174057 0
vsize: 697432
[startup+113.673 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 24024
Raw data (stat): 24024 (pb2sat-v2) R 24023 21152 21151 0 -1 0 252932 0 0 0 10460 551 0 0 25 0 1 0 969417673 714170368 163965 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 174358 163965 301 301 0 174057 0
vsize: 0

Child status: 1
Real time (s): 113.672
CPU time (s): 113.656
CPU user time (s): 107.811
CPU system time (s): 5.84511
CPU usage (%): 99.9854
Max. virtual memory (Kb): 697432
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####