Trace number 2668553

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) 32.5481 32.5817

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/unibo/normalized-mps-v2-20-10-CMS750_4.opb
MD5SUM793a421e66649b71c1e582af22e89954
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark646144
Best CPU time to get the best result obtained on this benchmark1800.77
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 589824
Optimality of the best value was proved NO
Number of variables142226
Total number of constraints20881
Number of constraints which are clauses2438
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints18443
Minimum length of a constraint4
Maximum length of a constraint61
Number of terms in the objective function 780
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1074509823
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1024000000
Number of bits of the biggest number in a constraint 30
Biggest sum of numbers in a constraint 2147731454
Number of bits of the biggest sum of numbers32
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
3.49/3.55	c constraints 18443/0 clauses 2438/0 units 0
3.49/3.55	c vars 142226
3.49/3.55	c objective 780 + -768000
32.36/32.40	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-2668553-1276539219/watcher-2668553-1276539219 -o /tmp/evaluation-result-2668553-1276539219/solver-2668553-1276539219 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668553-1276539219.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: 1.00 1.00 1.00 2/106 30626
/proc/meminfo: memFree=1832724/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=2340 CPUtime=0
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 284 0 0 0 0 0 0 0 17 0 1 0 29523343 2396160 206 1992294400 134512640 136485738 4291886144 18446744073709551615 135173668 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30626/statm: 585 206 156 482 0 101 0

[startup+0.0554151 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 30626
/proc/meminfo: memFree=1832724/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=3132 CPUtime=0.05
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 492 0 0 0 5 0 0 0 17 0 1 0 29523343 3207168 414 1992294400 134512640 136485738 4291886144 18446744073709551615 135411152 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30626/statm: 783 414 156 482 0 299 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3132

[startup+0.101422 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 30626
/proc/meminfo: memFree=1832724/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=3924 CPUtime=0.09
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 696 0 0 0 9 0 0 0 17 0 1 0 29523343 4018176 618 1992294400 134512640 136485738 4291886144 18446744073709551615 135350462 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30626/statm: 981 618 156 482 0 497 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3924

[startup+0.301456 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 30626
/proc/meminfo: memFree=1832724/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=7488 CPUtime=0.29
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 1574 0 0 0 29 0 0 0 17 0 1 0 29523343 7667712 1496 1992294400 134512640 136485738 4291886144 18446744073709551615 134524668 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30626/statm: 1872 1496 156 482 0 1388 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7488

[startup+0.700524 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 30626
/proc/meminfo: memFree=1832724/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=14748 CPUtime=0.69
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 3383 0 0 0 67 2 0 0 17 0 1 0 29523343 15101952 3305 1992294400 134512640 136485738 4291886144 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30626/statm: 3687 3305 156 482 0 3203 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14748

[startup+1.50076 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30627
/proc/meminfo: memFree=1814240/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=30080 CPUtime=1.49
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 7235 0 0 0 145 4 0 0 18 0 1 0 29523343 30801920 7157 1992294400 134512640 136485738 4291886144 18446744073709551615 135411191 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30626/statm: 7520 7158 156 482 0 7036 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 30080

[startup+3.10094 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30627
/proc/meminfo: memFree=1793160/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=60964 CPUtime=3.09
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 14938 0 0 0 302 7 0 0 21 0 1 0 29523343 62427136 14860 1992294400 134512640 136485738 4291886144 18446744073709551615 135839975 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30626/statm: 15241 14861 156 482 0 14757 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 60964

[startup+6.30049 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30627
/proc/meminfo: memFree=1611996/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=297484 CPUtime=6.29
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 76327 0 0 0 596 33 0 0 25 0 1 0 29523343 304623616 73592 1992294400 134512640 136485738 4291886144 18446744073709551615 134651007 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30626/statm: 74371 73592 198 482 0 73887 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 297484

[startup+12.7006 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30627
/proc/meminfo: memFree=1093180/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=801652 CPUtime=12.69
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 208836 0 0 0 1168 101 0 0 25 0 1 0 29523343 820891648 196819 1992294400 134512640 136485738 4291886144 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30626/statm: 200413 196819 198 482 0 199929 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 801652

[startup+25.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30630
/proc/meminfo: memFree=423952/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=1438340 CPUtime=25.46
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 383947 0 0 0 2363 183 0 0 25 0 1 0 29523343 1472860160 355538 1992294400 134512640 136485738 4291886144 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30626/statm: 359585 355539 198 482 0 359101 0
Current children cumulated CPU time (s) 25.46
Current children cumulated vsize (KiB) 1438340



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+32.401 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30630
/proc/meminfo: memFree=59672/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=1846368 CPUtime=32.36
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4202496 492284 0 0 0 3003 233 0 0 25 0 1 0 29523343 1890680832 442628 1992294400 134512640 136485738 4291886144 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30626/statm: 461592 442628 198 482 0 461108 0
Current children cumulated CPU time (s) 32.36
Current children cumulated vsize (KiB) 1846368

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

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

[startup+32.509 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30630
/proc/meminfo: memFree=59672/2059040 swapFree=4136080/4192956
[pid=30626] ppid=30624 vsize=0 CPUtime=32.46
/proc/30626/stat : 30626 (pbct) R 30624 30626 30396 0 -1 4194308 492290 0 0 0 3003 243 0 0 25 0 1 0 29523343 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/30626/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 32.46
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 32.5817
CPU time (s): 32.5481
CPU user time (s): 30.0384
CPU system time (s): 2.50962
CPU usage (%): 99.8968
Max. virtual memory (cumulated for all children) (KiB): 1846368

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.0384
system time used= 2.50962
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 492290
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= 461

runsolver used 0.06199 second user time and 0.163975 second system time

The end

Launcher Data 

Begin job on node014 at 2010-06-14 20:13:40
IDJOB=2668553
IDBENCH=2360
IDSOLVER=1170
FILE ID=node014/2668553-1276539219
PBS_JOBID= 11173468
Free space on /tmp= 62492 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-CMS750_4.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668553-1276539219/watcher-2668553-1276539219 -o /tmp/evaluation-result-2668553-1276539219/solver-2668553-1276539219 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668553-1276539219.opb

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

MD5SUM BENCH= 793a421e66649b71c1e582af22e89954
RANDOM SEED=327003337

node014.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		: 3000.258
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	: 6000.51
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		: 3000.258
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1833244 kB
Buffers:         23260 kB
Cached:         115124 kB
SwapCached:      11156 kB
Active:          85880 kB
Inactive:        66664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1833244 kB
SwapTotal:     4192956 kB
SwapFree:      4136080 kB
Dirty:           15832 kB
Writeback:           0 kB
AnonPages:       11412 kB
Mapped:           9120 kB
Slab:            51432 kB
PageTables:       4024 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181720 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= 62488 MiB
End job on node014 at 2010-06-14 20:14:14