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-nesm.opb
MD5SUMb7fb72cd75b9b276aedcc241f42047cf
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 8142
Biggest coefficient in the objective function 104857600000000000
Number of bits for the biggest coefficient in the objective function 57
Sum of the numbers in the objective function 5247199281280502271
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 1789569420335513600
Number of bits of the biggest number in a constraint 61
Biggest sum of numbers in a constraint 7218026776828457671
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.532918
Number of variables60075
Total number of constraints2258
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 constraints2258
Minimum length of a constraint10
Maximum length of a constraint941

Trace number 42329 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 05:42:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25548 boxname=wulflinc4 idbench=848 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b7fb72cd75b9b276aedcc241f42047cf  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-nesm.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-nesm.opb
IDLAUNCH: 25548
/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:        676608 kB
Buffers:         34224 kB
Cached:         301228 kB
SwapCached:        944 kB
Active:          51744 kB
Inactive:       285848 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        676356 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14756 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:43:54 (client local time) WITH STATUS 1 IN 99.4609 SECONDS
stats: 25548 7 99.4609 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): 0.91 0.93 0.90 2/54 22000
Raw data (stat): 22000 (runsolver) R 21999 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968317030 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+10.0011 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 23676 0 0 0 948 51 0 0 25 0 1 0 968317030 71663616 12765 4294967295 134512640 135730672 3221224576 3221202680 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 17496 12765 301 301 0 17195 0
vsize: 69984
[startup+20.0016 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 52535 0 0 0 1892 107 0 0 25 0 1 0 968317030 169082880 30378 4294967295 134512640 135730672 3221224576 3221203216 134546575 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 41280 30378 301 301 0 40979 0
vsize: 165120
[startup+30.0015 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 80027 0 0 0 2839 161 0 0 25 0 1 0 968317030 236404736 47983 4294967295 134512640 135730672 3221224576 3221204588 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 57716 47983 301 301 0 57415 0
vsize: 230864
[startup+40.0018 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 109233 0 0 0 3774 225 0 0 25 0 1 0 968317030 343269376 64659 4294967295 134512640 135730672 3221224576 3221203184 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83806 64660 301 301 0 83505 0
vsize: 335224
[startup+50.0024 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 148548 0 0 0 4699 301 0 0 25 0 1 0 968317030 460431360 83056 4294967295 134512640 135730672 3221224576 3221203784 134787729 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 112410 83056 301 301 0 112109 0
vsize: 449640
[startup+60.0023 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 163312 0 0 0 5672 328 0 0 25 0 1 0 968317030 468946944 97544 4294967295 134512640 135730672 3221224576 3221203456 135282246 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 114489 97545 301 301 0 114188 0
vsize: 457956
[startup+70.0036 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 205355 0 0 0 6587 413 0 0 25 0 1 0 968317030 596779008 114774 4294967295 134512640 135730672 3221224576 3221202768 134546473 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145698 114774 301 301 0 145397 0
vsize: 582792
[startup+80.0041 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 222557 0 0 0 7552 448 0 0 25 0 1 0 968317030 656961536 131744 4294967295 134512640 135730672 3221224576 3221203668 135109332 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 160391 131744 301 301 0 160090 0
vsize: 641564
[startup+90.0041 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 242652 0 0 0 8513 487 0 0 25 0 1 0 968317030 695431168 151542 4294967295 134512640 135730672 3221224576 3221222548 134540222 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169783 151542 301 301 0 169482 0
vsize: 679132
[startup+99.4485 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 22000
Raw data (stat): 22000 (pb2sat-v2) R 21999 21152 21151 0 -1 0 242652 0 0 0 8513 487 0 0 25 0 1 0 968317030 695431168 151542 4294967295 134512640 135730672 3221224576 3221222548 134540222 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169783 151542 301 301 0 169482 0
vsize: 0

Child status: 1
Real time (s): 99.4483
CPU time (s): 99.4609
CPU user time (s): 94.2667
CPU system time (s): 5.19421
CPU usage (%): 100.013
Max. virtual memory (Kb): 679132
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####