Trace number 2668488

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 into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1? (MO) 43.2274 43.483

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-van.opb
MD5SUMf8bd04e1a409d78891d8cd3f4d8f54c0
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark24193312742
Best CPU time to get the best result obtained on this benchmark1800.71
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 24193312742
Optimality of the best value was proved NO
Number of variables135360
Total number of constraints39616
Number of constraints which are clauses128
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints39488
Minimum length of a constraint2
Maximum length of a constraint496
Number of terms in the objective function 192
Biggest coefficient in the objective function 2427002644
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 319999999936
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 226795425792
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 973128929893
Number of bits of the biggest sum of numbers40
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
18.38/18.44	c constraints 39296/0 clauses 320/0 units 0
18.38/18.44	c vars 135360
18.38/18.44	c objective 192 + 0
43.05/43.30	s UNKNOWN

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668488-1276565703/watcher-2668488-1276565703 -o /tmp/evaluation-result-2668488-1276565703/solver-2668488-1276565703 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668488-1276565703.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.05 1.04 1.00 3/107 32139
/proc/meminfo: memFree=1703252/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=2340 CPUtime=0
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 293 0 0 0 0 0 0 0 20 0 1 0 30226519 2396160 216 1992294400 134512640 136485738 4293243584 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32139/statm: 585 217 156 482 0 101 0

[startup+0.025828 s]
/proc/loadavg: 1.05 1.04 1.00 3/107 32139
/proc/meminfo: memFree=1703252/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=2736 CPUtime=0.02
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 400 0 0 0 2 0 0 0 20 0 1 0 30226519 2801664 323 1992294400 134512640 136485738 4293243584 18446744073709551615 134524749 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32139/statm: 684 323 156 482 0 200 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2736

[startup+0.100835 s]
/proc/loadavg: 1.05 1.04 1.00 3/107 32139
/proc/meminfo: memFree=1703252/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=4592 CPUtime=0.09
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 855 0 0 0 9 0 0 0 20 0 1 0 30226519 4702208 778 1992294400 134512640 136485738 4293243584 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32139/statm: 1148 778 156 482 0 664 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4592

[startup+0.300852 s]
/proc/loadavg: 1.05 1.04 1.00 3/107 32139
/proc/meminfo: memFree=1703252/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=9344 CPUtime=0.29
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 2056 0 0 0 29 0 0 0 20 0 1 0 30226519 9568256 1979 1992294400 134512640 136485738 4293243584 18446744073709551615 135178857 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32139/statm: 2336 1979 156 482 0 1852 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9344

[startup+0.700888 s]
/proc/loadavg: 1.05 1.04 1.00 3/107 32139
/proc/meminfo: memFree=1703252/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=18784 CPUtime=0.69
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 4414 0 0 0 68 1 0 0 21 0 1 0 30226519 19234816 4337 1992294400 134512640 136485738 4293243584 18446744073709551615 135857055 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32139/statm: 4696 4339 156 482 0 4212 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 18784

[startup+1.50097 s]
/proc/loadavg: 1.05 1.04 1.00 2/108 32140
/proc/meminfo: memFree=1679312/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=37864 CPUtime=1.49
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 9179 0 0 0 146 3 0 0 23 0 1 0 30226519 38772736 9102 1992294400 134512640 136485738 4293243584 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32139/statm: 9466 9102 156 482 0 8982 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 37864

[startup+3.1011 s]
/proc/loadavg: 1.21 1.07 1.01 2/108 32140
/proc/meminfo: memFree=1653892/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=75944 CPUtime=3.09
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 18705 0 0 0 302 7 0 0 25 0 1 0 30226519 77766656 18628 1992294400 134512640 136485738 4293243584 18446744073709551615 135869135 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32139/statm: 18986 18629 156 482 0 18502 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 75944

[startup+6.30139 s]
/proc/loadavg: 1.21 1.07 1.01 2/108 32140
/proc/meminfo: memFree=1579244/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=143740 CPUtime=6.29
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 35635 0 0 0 613 16 0 0 25 0 1 0 30226519 147189760 35558 1992294400 134512640 136485738 4293243584 18446744073709551615 135177566 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32139/statm: 35935 35558 156 482 0 35451 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 143740

[startup+12.701 s]
/proc/loadavg: 1.17 1.07 1.01 2/108 32142
/proc/meminfo: memFree=1460700/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=258172 CPUtime=12.68
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 64267 0 0 0 1238 30 0 0 25 0 1 0 30226519 264368128 64157 1992294400 134512640 136485738 4293243584 18446744073709551615 135411211 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32139/statm: 64543 64157 156 482 0 64059 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 258172

[startup+25.5011 s]
/proc/loadavg: 1.15 1.07 1.01 2/108 32142
/proc/meminfo: memFree=783164/2059040 swapFree=4140108/4192956
[pid=32139] ppid=32137 vsize=963332 CPUtime=25.48
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 247380 0 0 0 2433 115 0 0 25 0 1 0 30226519 986451968 236669 1992294400 134512640 136485738 4293243584 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32139/statm: 240833 236670 198 482 0 240349 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 963332



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+43.3004 s]
/proc/loadavg: 1.18 1.08 1.01 4/108 32142
/proc/meminfo: memFree=10552/2059040 swapFree=4140072/4192956
[pid=32139] ppid=32137 vsize=1845856 CPUtime=43.05
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4202496 487585 0 0 0 4081 224 0 0 19 0 1 0 30226519 1890156544 459207 1992294400 134512640 136485738 4293243584 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 0 0 0 20
/proc/32139/statm: 461464 459208 198 482 0 460980 0
Current children cumulated CPU time (s) 43.05
Current children cumulated vsize (KiB) 1845856

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Solver just ended. Dumping a history of the last processes samples

[startup+43.4094 s]
/proc/loadavg: 1.18 1.08 1.01 4/108 32142
/proc/meminfo: memFree=10552/2059040 swapFree=4140072/4192956
[pid=32139] ppid=32137 vsize=0 CPUtime=43.15
/proc/32139/stat : 32139 (pbct) R 32137 32139 31726 0 -1 4194308 487592 0 0 0 4081 234 0 0 19 0 1 0 30226519 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 20
/proc/32139/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 43.15
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 43.483
CPU time (s): 43.2274
CPU user time (s): 40.8108
CPU system time (s): 2.41663
CPU usage (%): 99.4122
Max. virtual memory (cumulated for all children) (KiB): 1845856

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 40.8108
system time used= 2.41663
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 487592
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 5
involuntary context switches= 167

runsolver used 0.074988 second user time and 0.227965 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-15 03:35:08
IDJOB=2668488
IDBENCH=2503
IDSOLVER=1170
FILE ID=node025/2668488-1276565703
PBS_JOBID= 11173506
Free space on /tmp= 62496 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-van.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668488-1276565703/watcher-2668488-1276565703 -o /tmp/evaluation-result-2668488-1276565703/solver-2668488-1276565703 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668488-1276565703.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= f8bd04e1a409d78891d8cd3f4d8f54c0
RANDOM SEED=1252430530

node025.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.242
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.48
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.242
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1703408 kB
Buffers:         59480 kB
Cached:         202536 kB
SwapCached:       6516 kB
Active:         160028 kB
Inactive:       115240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1703408 kB
SwapTotal:     4192956 kB
SwapFree:      4140108 kB
Dirty:           79316 kB
Writeback:           0 kB
AnonPages:       11448 kB
Mapped:          12896 kB
Slab:            58188 kB
PageTables:       4072 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182164 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62496 MiB
End job on node025 at 2010-06-15 03:35:53