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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-swath2.opb
MD5SUM0c26e65f0a67107cc10849baae774e12
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 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1048576000000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 202485512285885
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.23266
Number of variables38571
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2599
Number of constraints which are nor clauses,nor cardinality constraints5009
Minimum length of a constraint1
Maximum length of a constraint36970

Trace number 35743 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-05-28 14:00:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25055 boxname=wulflinc10 idbench=1527 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0c26e65f0a67107cc10849baae774e12  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-swath2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-swath2.opb
IDLAUNCH: 25055
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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		: 450.999
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:        674140 kB
Buffers:          7612 kB
Cached:         332036 kB
SwapCached:         80 kB
Active:          25408 kB
Inactive:       316844 kB
HighTotal:      131008 kB
HighFree:         4760 kB
LowTotal:       903652 kB
LowFree:        669380 kB
SwapTotal:     2097136 kB
SwapFree:      2096732 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5880 kB
Slab:            12476 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 14:02:26 (client local time) WITH STATUS 1 IN 126.142 SECONDS
stats: 25055 7 126.142 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 0.94 0.90 2/54 24656
Raw data (stat): 24656 (runsolver) R 24655 15547 15546 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 807147743 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+9.99982 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 24656
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 7554 0 0 0 977 21 0 0 25 0 1 0 807147743 24875008 4474 4294967295 134512640 135726644 3221224576 3221221664 134556192 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6073 4474 300 300 0 5773 0
vsize: 24292
[startup+20.0003 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 24656
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 7595 0 0 0 1976 22 0 0 25 0 1 0 807147743 24875008 4515 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6073 4515 300 300 0 5773 0
vsize: 24292
[startup+29.9995 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 24656
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 7751 0 0 0 2975 22 0 0 25 0 1 0 807147743 25399296 4542 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6201 4542 300 300 0 5901 0
vsize: 24804
[startup+40.0002 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 24656
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 31956 0 0 0 3917 82 0 0 25 0 1 0 807147743 98586624 20893 4294967295 134512640 135726644 3221224576 3207912904 135280584 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 24069 20893 300 300 0 23769 0
vsize: 96276
[startup+50.0015 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 24656
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 61674 0 0 0 4849 149 0 0 25 0 1 0 807147743 197582848 39354 4294967295 134512640 135726644 3221224576 3206452320 135287437 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 48238 39354 300 300 0 47938 0
vsize: 192952
[startup+60.0012 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 24656
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 90916 0 0 0 5789 210 0 0 25 0 1 0 807147743 362225664 58628 4294967295 134512640 135726644 3221224576 3206452336 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 88434 58628 300 300 0 88134 0
vsize: 353736
[startup+70.0008 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 24658
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 121054 0 0 0 6721 277 0 0 25 0 1 0 807147743 377331712 76219 4294967295 134512640 135726644 3221224576 3206481968 134604398 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 92122 76219 300 300 0 91822 0
vsize: 368488
[startup+80.0018 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 24658
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 157703 0 0 0 7654 345 0 0 25 0 1 0 807147743 491003904 94267 4294967295 134512640 135726644 3221224576 3206501324 135287588 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119874 94267 300 300 0 119574 0
vsize: 479496
[startup+90.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 24658
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 196405 0 0 0 8569 430 0 0 25 0 1 0 807147743 600858624 108135 4294967295 134512640 135726644 3221224576 3206478676 134768803 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146694 108135 300 300 0 146394 0
vsize: 586776
[startup+100.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 24658
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 216805 0 0 0 9521 478 0 0 25 0 1 0 807147743 666333184 128262 4294967295 134512640 135726644 3221224576 3206487744 134780450 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162679 128262 300 300 0 162379 0
vsize: 650716
[startup+110.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 24658
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 236678 0 0 0 10479 520 0 0 25 0 1 0 807147743 699822080 147870 4294967295 134512640 135726644 3221224576 3206449528 135279148 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170855 147870 300 300 0 170555 0
vsize: 683420
[startup+120.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 24658
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 244545 0 0 0 11462 537 0 0 25 0 1 0 807147743 713654272 155489 4294967295 134512640 135726644 3221224576 3221222828 135277617 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 174232 155489 300 300 0 173932 0
vsize: 696928
[startup+126.145 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 24658
Raw data (stat): 24656 (pb2sat) R 24655 15547 15546 0 -1 0 244545 0 0 0 11462 537 0 0 25 0 1 0 807147743 713654272 155489 4294967295 134512640 135726644 3221224576 3221222828 135277617 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 174232 155489 300 300 0 173932 0
vsize: 0

Child status: 1
Real time (s): 126.145
CPU time (s): 126.142
CPU user time (s): 120.448
CPU system time (s): 5.69413
CPU usage (%): 99.9978
Max. virtual memory (Kb): 696928
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####