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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-bell5.opb
MD5SUMfa1c29f360870381638d135cd26eadfd
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 948
Biggest coefficient in the objective function 6291456000000000
Number of bits for the biggest coefficient in the objective function 53
Sum of the numbers in the objective function 104362034158211275
Number of bits of the sum of numbers in the objective function 57
Biggest number in a constraint 6291456000000000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 104362034158211275
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark3.13152
Number of variables1244
Total number of constraints149
Number of constraints which are clauses15
Number of constraints which are cardinality constraints (but not clauses)30
Number of constraints which are nor clauses,nor cardinality constraints104
Minimum length of a constraint1
Maximum length of a constraint95

Trace number 42771 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 14:29:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25987 boxname=wulflinc3 idbench=1287 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fa1c29f360870381638d135cd26eadfd  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-bell5.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-bell5.opb
IDLAUNCH: 25987
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        728056 kB
Buffers:         15256 kB
Cached:         269488 kB
SwapCached:        788 kB
Active:          30908 kB
Inactive:       255984 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        727804 kB
SwapTotal:     2097136 kB
SwapFree:      2095372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14016 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:32:15 (client local time) WITH STATUS 1 IN 140.921 SECONDS
stats: 25987 7 140.921 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 795858874296654
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023
c CONFLICT during preprocess 
c trying from 1024 to 1535

	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): 0.88 0.92 0.90 1/54 25235
Raw data (stat): 25235 (runsolver) R 25234 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971484339 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+10.0008 s]
Raw data (loadavg): 0.90 0.92 0.90 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 25733 0 0 0 951 48 0 0 25 0 1 0 971484339 76849152 14719 4294967295 134512640 135730672 3221224576 3221206104 135285545 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 18762 14719 301 301 0 18461 0
vsize: 75048
[startup+20.002 s]
Raw data (loadavg): 0.91 0.92 0.90 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 47504 0 0 0 1904 95 0 0 25 0 1 0 971484339 136777728 24914 4294967295 134512640 135730672 3221224576 3221223072 134747563 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 33393 24914 301 301 0 33092 0
vsize: 133572
[startup+30.003 s]
Raw data (loadavg): 0.92 0.92 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 74995 0 0 0 2850 149 0 0 25 0 1 0 971484339 228036608 42996 4294967295 134512640 135730672 3221224576 3220816048 135109333 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 55673 42996 301 301 0 55372 0
vsize: 222692
[startup+40.0032 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 100508 0 0 0 3794 205 0 0 25 0 1 0 971484339 322060288 55987 4294967295 134512640 135730672 3221224576 3220968320 134783984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 78628 55987 301 301 0 78327 0
vsize: 314512
[startup+50.0037 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 114971 0 0 0 4763 237 0 0 25 0 1 0 971484339 362033152 67959 4294967295 134512640 135730672 3221224576 3221222616 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 88387 67959 301 301 0 88086 0
vsize: 353548
[startup+60.0041 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 125057 0 0 0 5741 259 0 0 25 0 1 0 971484339 367439872 77855 4294967295 134512640 135730672 3221224576 3221103472 134770721 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 89707 77855 301 301 0 89406 0
vsize: 358828
[startup+70.0047 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 158189 0 0 0 6679 321 0 0 25 0 1 0 971484339 472264704 92412 4294967295 134512640 135730672 3221224576 3221030124 134608046 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 115299 92412 301 301 0 114998 0
vsize: 461196
[startup+80.0048 s]
Raw data (loadavg): 0.97 0.93 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 193446 0 0 0 7599 400 0 0 25 0 1 0 971484339 575766528 102875 4294967295 134512640 135730672 3221224576 3220788968 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140568 102875 301 301 0 140267 0
vsize: 562272
[startup+90.0057 s]
Raw data (loadavg): 0.97 0.93 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 209815 0 0 0 8561 439 0 0 25 0 1 0 971484339 601329664 119024 4294967295 134512640 135730672 3221224576 3221123148 135301642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146809 119024 301 301 0 146508 0
vsize: 587236
[startup+100.005 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 221866 0 0 0 9534 466 0 0 25 0 1 0 971484339 624209920 130895 4294967295 134512640 135730672 3221224576 3221222976 134742366 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152395 130895 301 301 0 152094 0
vsize: 609580
[startup+110.007 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 236580 0 0 0 10502 498 0 0 25 0 1 0 971484339 657092608 138561 4294967295 134512640 135730672 3221224576 3221222616 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160423 138561 301 301 0 160122 0
vsize: 641692
[startup+120.007 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 248602 0 0 0 11476 525 0 0 25 0 1 0 971484339 706293760 150583 4294967295 134512640 135730672 3221224576 3221222272 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 172435 150583 301 301 0 172134 0
vsize: 689740
[startup+130.007 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 255837 0 0 0 12459 541 0 0 25 0 1 0 971484339 706293760 157617 4294967295 134512640 135730672 3221224576 3220853968 134549508 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 172435 157617 301 301 0 172134 0
vsize: 689740
[startup+140.007 s]
Raw data (loadavg): 0.99 0.94 0.91 2/54 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 258569 0 0 0 13443 557 0 0 25 0 1 0 971484339 420184064 102169 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 102584 102169 301 301 0 102283 0
vsize: 410336
[startup+140.915 s]
Raw data (loadavg): 0.99 0.94 0.91 1/53 25235
Raw data (stat): 25235 (pb2sat-v2) R 25234 20224 20223 0 -1 0 258569 0 0 0 13443 557 0 0 25 0 1 0 971484339 420184064 102169 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 102584 102169 301 301 0 102283 0
vsize: 0

Child status: 1
Real time (s): 140.915
CPU time (s): 140.921
CPU user time (s): 135.137
CPU system time (s): 5.78312
CPU usage (%): 100.004
Max. virtual memory (Kb): 689740
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####