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-scorpion.opb
MD5SUM407688f2ee1c26681a4ae06671027d6f
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 5640
Biggest coefficient in the objective function 10536091648
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 589543467975
Number of bits of the sum of numbers in the objective function 40
Biggest number in a constraint 32768000000
Number of bits of the biggest number in a constraint 35
Biggest sum of numbers in a constraint 589543467975
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.065989
Number of variables7160
Total number of constraints388
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 constraints388
Minimum length of a constraint20
Maximum length of a constraint400

Trace number 42733 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 14:13:26 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25950 boxname=wulflinc1 idbench=1250 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  407688f2ee1c26681a4ae06671027d6f  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-scorpion.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-scorpion.opb
IDLAUNCH: 25950
/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:        722296 kB
Buffers:         18996 kB
Cached:         268984 kB
SwapCached:       1156 kB
Active:          26380 kB
Inactive:       263892 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        722044 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16220 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:15:08 (client local time) WITH STATUS 1 IN 101.91 SECONDS
stats: 25950 7 101.91 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 0.92 0.90 2/55 20869
Raw data (stat): 20869 (runsolver) R 20868 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914537531 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+10.0006 s]
Raw data (loadavg): 0.91 0.92 0.90 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 26530 0 0 0 942 57 0 0 25 0 1 0 914537531 78458880 15429 4294967295 134512640 135730672 3221224576 3221202720 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19155 15430 301 301 0 18854 0
vsize: 76620
[startup+20.0006 s]
Raw data (loadavg): 0.92 0.92 0.90 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 52765 0 0 0 1888 111 0 0 25 0 1 0 914537531 153501696 30692 4294967295 134512640 135730672 3221224576 3221176852 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37476 30692 301 301 0 37175 0
vsize: 149904
[startup+30.0004 s]
Raw data (loadavg): 0.94 0.92 0.91 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 91103 0 0 0 2807 191 0 0 25 0 1 0 914537531 266653696 47333 4294967295 134512640 135730672 3221224576 3221201824 135282737 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 65101 47333 301 301 0 64800 0
vsize: 260404
[startup+40.0001 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 105617 0 0 0 3771 227 0 0 25 0 1 0 914537531 302505984 61585 4294967295 134512640 135730672 3221224576 3221195756 134607984 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73854 61585 301 301 0 73553 0
vsize: 295416
[startup+50.0014 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 145579 0 0 0 4694 303 0 0 25 0 1 0 914537531 428822528 82961 4294967295 134512640 135730672 3221224576 3221194328 135284239 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 104693 82961 301 301 0 104392 0
vsize: 418772
[startup+60.0017 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 182089 0 0 0 5615 382 0 0 25 0 1 0 914537531 529485824 94672 4294967295 134512640 135730672 3221224576 3221203660 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 129269 94672 301 301 0 128968 0
vsize: 517076
[startup+70.0025 s]
Raw data (loadavg): 0.97 0.93 0.91 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 193727 0 0 0 6585 411 0 0 25 0 1 0 914537531 563040256 106094 4294967295 134512640 135730672 3221224576 3221180544 135284091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137461 106094 301 301 0 137160 0
vsize: 549844
[startup+80.0021 s]
Raw data (loadavg): 0.97 0.93 0.91 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 209050 0 0 0 7552 443 0 0 25 0 1 0 914537531 568717312 121159 4294967295 134512640 135730672 3221224576 3221185992 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138847 121160 301 301 0 138546 0
vsize: 555388
[startup+90.002 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 223979 0 0 0 8521 475 0 0 25 0 1 0 914537531 634863616 135883 4294967295 134512640 135730672 3221224576 3221185204 135281187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154996 135883 301 301 0 154695 0
vsize: 619984
[startup+100.002 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 242792 0 0 0 9468 527 0 0 25 0 1 0 914537531 288276480 70218 4294967295 134512640 135730672 3221224576 3221222956 135104780 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 70380 70218 301 301 0 70079 0
vsize: 281520
[startup+101.95 s]
Raw data (loadavg): 0.98 0.94 0.91 1/54 20869
Raw data (stat): 20869 (pb2sat-v2) R 20868 8378 8377 0 -1 0 242792 0 0 0 9468 527 0 0 25 0 1 0 914537531 288276480 70218 4294967295 134512640 135730672 3221224576 3221222956 135104780 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 70380 70218 301 301 0 70079 0
vsize: 0

Child status: 1
Real time (s): 101.95
CPU time (s): 101.91
CPU user time (s): 96.4823
CPU system time (s): 5.42717
CPU usage (%): 99.9605
Max. virtual memory (Kb): 619984
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####