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-israel.opb
MD5SUM7ba5c7ed3d893d37e85d9935730a0f21
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -2147483648
Optimality of the best value was proved NO
Number of terms in the objective function 2670
Biggest coefficient in the objective function 807185416192000
Number of bits for the biggest coefficient in the objective function 50
Sum of the numbers in the objective function 9901243932822396
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 807185416192000
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 9901243932822396
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1230.58
Number of variables4260
Total number of constraints174
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 constraints174
Minimum length of a constraint30
Maximum length of a constraint3540

Trace number 42323 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 05:38:22 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25542 boxname=wulflinc4 idbench=842 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7ba5c7ed3d893d37e85d9935730a0f21  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-israel.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-israel.opb
IDLAUNCH: 25542
/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:        696496 kB
Buffers:         34192 kB
Cached:         281608 kB
SwapCached:        944 kB
Active:          45900 kB
Inactive:       271984 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        696244 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14528 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:40:15 (client local time) WITH STATUS 1 IN 112.26 SECONDS
stats: 25542 7 112.26 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 0.94 0.90 2/54 21814
Raw data (stat): 21814 (runsolver) R 21813 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968293813 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): 0.93 0.94 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 28146 0 0 0 943 55 0 0 25 0 1 0 968293813 86872064 17242 4294967295 134512640 135730672 3221224576 3221192184 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21209 17242 301 301 0 20908 0
vsize: 84836
[startup+20.001 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 53293 0 0 0 1891 108 0 0 25 0 1 0 968293813 166461440 31451 4294967295 134512640 135730672 3221224576 3221186304 134813865 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 40640 31451 301 301 0 40339 0
vsize: 162560
[startup+30.0167 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 88102 0 0 0 2820 180 0 0 25 0 1 0 968293813 270626816 44077 4294967295 134512640 135730672 3221224576 3221206548 135344689 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 66071 44078 301 301 0 65770 0
vsize: 264284
[startup+40.0169 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 100117 0 0 0 3795 205 0 0 25 0 1 0 968293813 304181248 55868 4294967295 134512640 135730672 3221224576 3221183144 135104819 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74263 55868 301 301 0 73962 0
vsize: 297052
[startup+50.0169 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 120259 0 0 0 4755 245 0 0 25 0 1 0 968293813 466153472 75630 4294967295 134512640 135730672 3221224576 3221201472 134775425 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 113807 75633 301 301 0 113506 0
vsize: 455228
[startup+60.0168 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 174534 0 0 0 5652 348 0 0 25 0 1 0 968293813 629014528 110493 4294967295 134512640 135730672 3221224576 3221207072 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153568 110497 301 301 0 153267 0
vsize: 614272
[startup+70.0167 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 185402 0 0 0 6624 376 0 0 25 0 1 0 968293813 561901568 96581 4294967295 134512640 135730672 3221224576 3221189240 135284251 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137183 96582 301 301 0 136882 0
vsize: 548732
[startup+80.0176 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 202652 0 0 0 7592 408 0 0 25 0 1 0 968293813 578936832 113583 4294967295 134512640 135730672 3221224576 3221207372 134607999 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141342 113583 301 301 0 141041 0
vsize: 565368
[startup+90.0176 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 214567 0 0 0 8567 433 0 0 25 0 1 0 968293813 582180864 125287 4294967295 134512640 135730672 3221224576 3221196236 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 142134 125288 301 301 0 141833 0
vsize: 568536
[startup+100.018 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 227334 0 0 0 9540 460 0 0 25 0 1 0 968293813 647131136 137878 4294967295 134512640 135730672 3221224576 3221191168 134770605 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157991 137878 301 301 0 157690 0
vsize: 631964
[startup+110.019 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 242311 0 0 0 10497 503 0 0 25 0 1 0 968293813 294879232 71802 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71992 71802 301 301 0 71691 0
vsize: 287968
[startup+112.271 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 21814
Raw data (stat): 21814 (pb2sat-v2) R 21813 21152 21151 0 -1 0 242311 0 0 0 10497 503 0 0 25 0 1 0 968293813 294879232 71802 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71992 71802 301 301 0 71691 0
vsize: 0

Child status: 1
Real time (s): 112.271
CPU time (s): 112.26
CPU user time (s): 107.074
CPU system time (s): 5.18621
CPU usage (%): 99.9901
Max. virtual memory (Kb): 631964
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####