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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-vtp.base.opb
MD5SUM62492fa5ef4f36caec6c1eec4eeb566a
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 181
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 7516192762
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 198568686125056
Number of bits of the biggest number in a constraint 48
Biggest sum of numbers in a constraint 12817928787879752
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.260959
Number of variables4524
Total number of constraints262
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 constraints262
Minimum length of a constraint11
Maximum length of a constraint1080

Trace number 42373 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 06:11:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25591 boxname=wulflinc5 idbench=891 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  62492fa5ef4f36caec6c1eec4eeb566a  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-vtp.base.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-vtp.base.opb
IDLAUNCH: 25591
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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	: 2
cpu MHz		: 451.007
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:        723512 kB
Buffers:         34712 kB
Cached:         253520 kB
SwapCached:        700 kB
Active:          73536 kB
Inactive:       216844 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        723260 kB
SwapTotal:     2097136 kB
SwapFree:      2095508 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15152 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:13:29 (client local time) WITH STATUS 1 IN 104.602 SECONDS
stats: 25591 7 104.602 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): 0.90 0.95 0.90 2/54 9840
Raw data (stat): 9840 (runsolver) R 9839 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968504203 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0013 s]
Raw data (loadavg): 0.92 0.95 0.90 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 27111 0 0 0 940 59 0 0 25 0 1 0 968504203 77709312 16189 4294967295 134512640 135730672 3221224576 3221180380 135291126 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18972 16189 301 301 0 18671 0
vsize: 75888
[startup+20.0016 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 53941 0 0 0 1887 111 0 0 25 0 1 0 968504203 155455488 32047 4294967295 134512640 135730672 3221224576 3221194996 134550073 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37953 32047 301 301 0 37652 0
vsize: 151812
[startup+30.0023 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 91419 0 0 0 2818 180 0 0 25 0 1 0 968504203 268337152 47845 4294967295 134512640 135730672 3221224576 3221188892 135291220 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65512 47845 301 301 0 65211 0
vsize: 262048
[startup+40.0026 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 104466 0 0 0 3789 209 0 0 25 0 1 0 968504203 302972928 60655 4294967295 134512640 135730672 3221224576 3221164276 134612433 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73968 60655 301 301 0 73667 0
vsize: 295872
[startup+50.0028 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 145563 0 0 0 4715 283 0 0 25 0 1 0 968504203 501407744 100561 4294967295 134512640 135730672 3221224576 3221163248 135282716 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 122414 100561 301 301 0 122113 0
vsize: 489656
[startup+60.0026 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 180702 0 0 0 5637 361 0 0 25 0 1 0 968504203 539156480 93540 4294967295 134512640 135730672 3221224576 3221168300 134770062 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 131630 93540 301 301 0 131329 0
vsize: 526520
[startup+70.0038 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 192533 0 0 0 6609 389 0 0 25 0 1 0 968504203 572710912 105156 4294967295 134512640 135730672 3221224576 3221164344 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 139822 105156 301 301 0 139521 0
vsize: 559288
[startup+80.0052 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 206885 0 0 0 7577 421 0 0 25 0 1 0 968504203 572715008 119245 4294967295 134512640 135730672 3221224576 3221150700 135291064 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 139823 119245 301 301 0 139522 0
vsize: 559292
[startup+90.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 220251 0 0 0 8546 452 0 0 25 0 1 0 968504203 631562240 132407 4294967295 134512640 135730672 3221224576 3221154008 134546398 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154190 132407 301 301 0 153889 0
vsize: 616760
[startup+100.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 243614 0 0 0 9477 521 0 0 25 0 1 0 968504203 281137152 68475 4294967295 134512640 135730672 3221224576 3221222764 135281206 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 68637 68475 301 301 0 68336 0
vsize: 274548
[startup+104.615 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 9840
Raw data (stat): 9840 (pb2sat-v2) R 9839 7266 7265 0 -1 0 243614 0 0 0 9477 521 0 0 25 0 1 0 968504203 281137152 68475 4294967295 134512640 135730672 3221224576 3221222764 135281206 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 68637 68475 301 301 0 68336 0
vsize: 0

Child status: 1
Real time (s): 104.614
CPU time (s): 104.602
CPU user time (s): 99.2399
CPU system time (s): 5.36218
CPU usage (%): 99.9884
Max. virtual memory (Kb): 616760
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####