Trace number 2668730

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) 30.3784 30.3853

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/unibo/normalized-mps-v2-20-10-dc1l.opb
MD5SUMb626c8307376f19de1f1e51bf91eca4f
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark322124436347890954240
Best CPU time to get the best result obtained on this benchmark1800.58
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 17540679175205888
Optimality of the best value was proved NO
Number of variables85198
Total number of constraints1652
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 constraints1652
Minimum length of a constraint31
Maximum length of a constraint35129
Number of terms in the objective function 85198
Biggest coefficient in the objective function 536870912000000000000
Number of bits for the biggest coefficient in the objective function 69
Sum of the numbers in the objective function 6796468271401867858547
Number of bits of the sum of numbers in the objective function 73
Biggest number in a constraint 536870912000000000000
Number of bits of the biggest number in a constraint 69
Biggest sum of numbers in a constraint 6796468271401867858547
Number of bits of the biggest sum of numbers73
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
2.30/2.36	c constraints 1652/0 clauses 0/0 units 0
2.30/2.36	c vars 85198
2.30/2.36	c objective 85198 + 0
30.19/30.20	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-2668730-1276542108/watcher-2668730-1276542108 -o /tmp/evaluation-result-2668730-1276542108/solver-2668730-1276542108 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668730-1276542108.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: 0.85 0.97 0.99 3/106 31609
/proc/meminfo: memFree=1858768/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=2488 CPUtime=0
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 303 0 0 0 0 0 0 0 18 0 1 0 27867177 2547712 225 1992294400 134512640 136485738 4289034288 18446744073709551615 135172024 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31609/statm: 622 225 151 482 0 138 0

[startup+0.017437 s]
/proc/loadavg: 0.85 0.97 0.99 3/106 31609
/proc/meminfo: memFree=1858768/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=2752 CPUtime=0.01
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 361 0 0 0 1 0 0 0 18 0 1 0 27867177 2818048 283 1992294400 134512640 136485738 4289034288 18446744073709551615 135411158 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31609/statm: 688 283 151 482 0 204 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2752

[startup+0.101444 s]
/proc/loadavg: 0.85 0.97 0.99 3/106 31609
/proc/meminfo: memFree=1858768/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=4212 CPUtime=0.09
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 901 0 0 0 9 0 0 0 21 0 1 0 27867177 4313088 676 1992294400 134512640 136485738 4289034288 18446744073709551615 135178812 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31609/statm: 1053 678 151 482 0 569 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4212

[startup+0.301463 s]
/proc/loadavg: 0.85 0.97 0.99 3/106 31609
/proc/meminfo: memFree=1858768/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=9564 CPUtime=0.29
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 2568 0 0 0 29 0 0 0 21 0 1 0 27867177 9793536 1667 1992294400 134512640 136485738 4289034288 18446744073709551615 135857111 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31609/statm: 2391 1667 152 482 0 1907 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9564

[startup+0.701501 s]
/proc/loadavg: 0.85 0.97 0.99 3/106 31609
/proc/meminfo: memFree=1858768/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=16184 CPUtime=0.69
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 4195 0 0 0 68 1 0 0 22 0 1 0 27867177 16572416 3294 1992294400 134512640 136485738 4289034288 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31609/statm: 4046 3294 155 482 0 3562 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16184

[startup+1.50158 s]
/proc/loadavg: 0.85 0.97 0.99 2/107 31610
/proc/meminfo: memFree=1838796/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=29852 CPUtime=1.49
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 7454 0 0 0 146 3 0 0 25 0 1 0 27867177 30568448 6553 1992294400 134512640 136485738 4289034288 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31609/statm: 7463 6553 156 482 0 6979 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 29852

[startup+3.10173 s]
/proc/loadavg: 0.85 0.97 0.99 2/107 31610
/proc/meminfo: memFree=1822304/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=95656 CPUtime=3.09
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 23678 0 0 0 298 11 0 0 25 0 1 0 27867177 97951744 22648 1992294400 134512640 136485738 4289034288 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31609/statm: 23947 22649 197 482 0 23463 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 95656

[startup+6.30104 s]
/proc/loadavg: 0.86 0.97 0.99 2/107 31610
/proc/meminfo: memFree=1637544/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=288864 CPUtime=6.29
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 74944 0 0 0 598 31 0 0 25 0 1 0 27867177 295796736 68845 1992294400 134512640 136485738 4289034288 18446744073709551615 134802724 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31609/statm: 72216 68846 197 482 0 71732 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 288864

[startup+12.7017 s]
/proc/loadavg: 0.87 0.97 0.99 2/107 31610
/proc/meminfo: memFree=1262196/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=675136 CPUtime=12.69
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 177835 0 0 0 1192 77 0 0 25 0 1 0 27867177 691339264 165267 1992294400 134512640 136485738 4289034288 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31609/statm: 168784 165268 197 482 0 168300 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 675136

[startup+25.5009 s]
/proc/loadavg: 0.90 0.97 0.99 2/107 31612
/proc/meminfo: memFree=545104/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=1342896 CPUtime=25.48
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 360815 0 0 0 2394 154 0 0 25 0 1 0 27867177 1375125504 331800 1992294400 134512640 136485738 4289034288 18446744073709551615 134802724 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31609/statm: 335724 331801 197 482 0 335240 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1342896



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+30.2013 s]
/proc/loadavg: 0.91 0.97 0.99 2/107 31612
/proc/meminfo: memFree=59024/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=1880040 CPUtime=30.19
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4202496 499442 0 0 0 2811 208 0 0 25 0 1 0 27867177 1925160960 449958 1992294400 134512640 136485738 4289034288 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31609/statm: 470010 449962 199 482 0 469526 0
Current children cumulated CPU time (s) 30.19
Current children cumulated vsize (KiB) 1880040

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

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

[startup+30.3093 s]
/proc/loadavg: 0.91 0.97 0.99 2/107 31612
/proc/meminfo: memFree=59024/2059040 swapFree=4140228/4192956
[pid=31609] ppid=31607 vsize=0 CPUtime=30.29
/proc/31609/stat : 31609 (pbct) R 31607 31609 31584 0 -1 4194308 499472 0 0 0 2811 218 0 0 25 0 1 0 27867177 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/31609/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 30.29
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 30.3853
CPU time (s): 30.3784
CPU user time (s): 28.1147
CPU system time (s): 2.26366
CPU usage (%): 99.9771
Max. virtual memory (cumulated for all children) (KiB): 1880040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.1147
system time used= 2.26365
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 499472
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= 1
involuntary context switches= 126

runsolver used 0.047992 second user time and 0.161975 second system time

The end

Launcher Data 

Begin job on node018 at 2010-06-14 21:01:48
IDJOB=2668730
IDBENCH=2370
IDSOLVER=1170
FILE ID=node018/2668730-1276542108
PBS_JOBID= 11173477
Free space on /tmp= 62360 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-dc1l.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668730-1276542108/watcher-2668730-1276542108 -o /tmp/evaluation-result-2668730-1276542108/solver-2668730-1276542108 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668730-1276542108.opb

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

MD5SUM BENCH= b626c8307376f19de1f1e51bf91eca4f
RANDOM SEED=180815148

node018.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		: 3000.248
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	: 6000.49
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		: 3000.248
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1859420 kB
Buffers:         18648 kB
Cached:          94120 kB
SwapCached:       5836 kB
Active:          80212 kB
Inactive:        44860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1859420 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:           10232 kB
Writeback:           0 kB
AnonPages:       10856 kB
Mapped:          12984 kB
Slab:            52748 kB
PageTables:       4052 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180504 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= 62360 MiB
End job on node018 at 2010-06-14 21:02:21