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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scagr7.opb
MD5SUMba8d9e2ddb6c7fbe5dbad283bafaa87d
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 2660
Biggest coefficient in the objective function 34707865600
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 1276562467950
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 34707865600
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 1276562467950
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.120981
Number of variables2800
Total number of constraints129
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 constraints129
Minimum length of a constraint20
Maximum length of a constraint200

Trace number 42728 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 14:11:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25946 boxname=wulflinc1 idbench=1246 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ba8d9e2ddb6c7fbe5dbad283bafaa87d  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-scagr7.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-scagr7.opb
IDLAUNCH: 25946
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        723576 kB
Buffers:         18900 kB
Cached:         267992 kB
SwapCached:       1156 kB
Active:          25992 kB
Inactive:       263160 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        723324 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16092 kB
Committed_AS:    92696 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:13:18 (client local time) WITH STATUS 1 IN 110.59 SECONDS
stats: 25946 7 110.59 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): 0.79 0.91 0.90 2/55 20776
Raw data (stat): 20776 (runsolver) R 20775 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914525685 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+10.0003 s]
Raw data (loadavg): 0.82 0.91 0.90 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 28128 0 0 0 939 59 0 0 25 0 1 0 914525685 84709376 17122 4294967295 134512640 135730672 3221224576 3221163288 134546395 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 20681 17122 301 301 0 20380 0
vsize: 82724
[startup+20.0001 s]
Raw data (loadavg): 0.85 0.92 0.90 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 57037 0 0 0 1885 114 0 0 25 0 1 0 914525685 171511808 35066 4294967295 134512640 135730672 3221224576 3221205432 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 41873 35066 301 301 0 41572 0
vsize: 167492
[startup+30.0009 s]
Raw data (loadavg): 0.87 0.92 0.90 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 89884 0 0 0 2817 182 0 0 25 0 1 0 914525685 269930496 46255 4294967295 134512640 135730672 3221224576 3221159568 134786812 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65901 46255 301 301 0 65600 0
vsize: 263604
[startup+40.0007 s]
Raw data (loadavg): 0.89 0.92 0.90 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 107000 0 0 0 3782 217 0 0 25 0 1 0 914525685 319299584 63128 4294967295 134512640 135730672 3221224576 3221205052 134607999 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 77954 63128 301 301 0 77653 0
vsize: 311816
[startup+50.0015 s]
Raw data (loadavg): 0.91 0.92 0.90 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 123783 0 0 0 4745 253 0 0 25 0 1 0 914525685 467451904 79464 4294967295 134512640 135730672 3221224576 3221135088 134775356 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 114124 79467 301 301 0 113823 0
vsize: 456496
[startup+60.0013 s]
Raw data (loadavg): 0.92 0.92 0.90 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 177815 0 0 0 5640 358 0 0 25 0 1 0 914525685 540749824 90627 4294967295 134512640 135730672 3221224576 3221162700 135301601 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 132019 90627 301 301 0 131718 0
vsize: 528076
[startup+70.0019 s]
Raw data (loadavg): 0.93 0.93 0.90 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 189676 0 0 0 6614 385 0 0 25 0 1 0 914525685 574304256 102275 4294967295 134512640 135730672 3221224576 3221200272 135291069 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140211 102275 301 301 0 139910 0
vsize: 560844
[startup+80.0029 s]
Raw data (loadavg): 0.94 0.93 0.90 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 202015 0 0 0 7592 407 0 0 25 0 1 0 914525685 574304256 114392 4294967295 134512640 135730672 3221224576 3221168284 135291222 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140211 114392 301 301 0 139910 0
vsize: 560844
[startup+90.0028 s]
Raw data (loadavg): 0.95 0.93 0.90 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 219596 0 0 0 8557 442 0 0 25 0 1 0 914525685 593633280 131742 4294967295 134512640 135730672 3221224576 3221201340 134608065 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144930 131742 301 301 0 144629 0
vsize: 579720
[startup+100.003 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 230264 0 0 0 9529 470 0 0 25 0 1 0 914525685 644100096 142217 4294967295 134512640 135730672 3221224576 3221145068 135301642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157251 142218 301 301 0 156950 0
vsize: 629004
[startup+110.004 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 242480 0 0 0 10481 518 0 0 25 0 1 0 914525685 141017088 34264 4294967295 134512640 135730672 3221224576 3221223020 135281187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 34428 34264 301 301 0 34127 0
vsize: 137712
[startup+110.602 s]
Raw data (loadavg): 0.96 0.93 0.91 1/54 20776
Raw data (stat): 20776 (pb2sat-v2) R 20775 8378 8377 0 -1 0 242480 0 0 0 10481 518 0 0 25 0 1 0 914525685 141017088 34264 4294967295 134512640 135730672 3221224576 3221223020 135281187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 34428 34264 301 301 0 34127 0
vsize: 0

Child status: 1
Real time (s): 110.602
CPU time (s): 110.59
CPU user time (s): 105.331
CPU system time (s): 5.2592
CPU usage (%): 99.9894
Max. virtual memory (Kb): 629004
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####