Trace number 2668679

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 0.1Wrong UNSAT 9.79651 9.79956

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos7.opb
MD5SUMf5e09fc51fdb6e7c65b10c880b18ec53
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark1920918611
Best CPU time to get the best result obtained on this benchmark1800.44
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2594748416
Optimality of the best value was proved NO
Number of variables33010
Total number of constraints2154
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)142
Number of constraints which are nor clauses,nor cardinality constraints2012
Minimum length of a constraint2
Maximum length of a constraint441
Number of terms in the objective function 4506
Biggest coefficient in the objective function 8053063680000
Number of bits for the biggest coefficient in the objective function 43
Sum of the numbers in the objective function 590484474471966
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 536870912000000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 1073741839777215
Number of bits of the biggest sum of numbers50
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
0.39/0.42	c constraints 2147/0 clauses 7/0 units 5337
0.39/0.42	c vars 33010
0.39/0.43	c objective 4451 + 0
7.39/7.46	c 6.96894 454.758 1 26817
9.69/9.75	s UNSATISFIABLE

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-2668679-1276530464/watcher-2668679-1276530464 -o /tmp/evaluation-result-2668679-1276530464/solver-2668679-1276530464 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668679-1276530464.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 32240
/proc/meminfo: memFree=1850028/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=2488 CPUtime=0
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 304 0 0 0 0 0 0 0 20 0 1 0 28647983 2547712 226 1992294400 134512640 136485738 4293186608 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32240/statm: 622 226 151 482 0 138 0

[startup+0.106994 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 32240
/proc/meminfo: memFree=1850028/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=3676 CPUtime=0.1
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 605 0 0 0 10 0 0 0 23 0 1 0 28647983 3764224 527 1992294400 134512640 136485738 4293186608 18446744073709551615 135844704 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32240/statm: 919 528 156 482 0 435 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3676

[startup+0.201011 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 32240
/proc/meminfo: memFree=1850028/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=5524 CPUtime=0.19
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 1081 0 0 0 19 0 0 0 23 0 1 0 28647983 5656576 1003 1992294400 134512640 136485738 4293186608 18446744073709551615 135856849 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32240/statm: 1381 1003 157 482 0 897 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 5524

[startup+0.301028 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 32240
/proc/meminfo: memFree=1850028/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=7504 CPUtime=0.29
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 1564 0 0 0 29 0 0 0 23 0 1 0 28647983 7684096 1486 1992294400 134512640 136485738 4293186608 18446744073709551615 135857057 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32240/statm: 1876 1486 157 482 0 1392 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7504

[startup+0.701099 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 32240
/proc/meminfo: memFree=1850028/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=36944 CPUtime=0.69
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 8926 0 0 0 66 3 0 0 25 0 1 0 28647983 37830656 8782 1992294400 134512640 136485738 4293186608 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 9236 8783 198 482 0 8752 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 36944

[startup+1.50124 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 32241
/proc/meminfo: memFree=1788888/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=85080 CPUtime=1.49
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 21721 0 0 0 140 9 0 0 25 0 1 0 28647983 87121920 20463 1992294400 134512640 136485738 4293186608 18446744073709551615 135565375 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 21270 20463 198 482 0 20786 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 85080

[startup+3.10153 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 32241
/proc/meminfo: memFree=1728004/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=193952 CPUtime=3.09
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 50344 0 0 0 288 21 0 0 25 0 1 0 28647983 198606848 47609 1992294400 134512640 136485738 4293186608 18446744073709551615 134651007 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 48488 47609 198 482 0 48004 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 193952

[startup+6.3011 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 32241
/proc/meminfo: memFree=1449128/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=437536 CPUtime=6.29
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 114215 0 0 0 582 47 0 0 25 0 1 0 28647983 448036864 105720 1992294400 134512640 136485738 4293186608 18446744073709551615 134929173 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 109384 105720 210 482 0 108900 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 437536

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

[startup+6.40112 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 32241
/proc/meminfo: memFree=1449128/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=438344 CPUtime=6.39
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 114525 0 0 0 592 47 0 0 25 0 1 0 28647983 448864256 106030 1992294400 134512640 136485738 4293186608 18446744073709551615 134940511 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 109586 106030 210 482 0 109102 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 438344

[startup+8.0014 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 32241
/proc/meminfo: memFree=1410936/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=441748 CPUtime=7.98
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 121940 0 0 0 749 49 0 0 25 0 1 0 28647983 452349952 107861 1992294400 134512640 136485738 4293186608 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 110437 107861 249 482 0 109953 0
Current children cumulated CPU time (s) 7.98
Current children cumulated vsize (KiB) 441748

[startup+8.80155 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 32241
/proc/meminfo: memFree=1430156/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=428636 CPUtime=8.8
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 121940 0 0 0 830 50 0 0 25 0 1 0 28647983 438923264 104759 1992294400 134512640 136485738 4293186608 18446744073709551615 135839787 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 107159 104759 249 482 0 106675 0
Current children cumulated CPU time (s) 8.8
Current children cumulated vsize (KiB) 428636

[startup+9.20062 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 32241
/proc/meminfo: memFree=1430156/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=428636 CPUtime=9.19
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 121940 0 0 0 869 50 0 0 25 0 1 0 28647983 438923264 104759 1992294400 134512640 136485738 4293186608 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 107159 104759 249 482 0 106675 0
Current children cumulated CPU time (s) 9.19
Current children cumulated vsize (KiB) 428636

[startup+9.60069 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 32241
/proc/meminfo: memFree=1430156/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=403356 CPUtime=9.59
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 121940 0 0 0 909 50 0 0 25 0 1 0 28647983 413036544 100528 1992294400 134512640 136485738 4293186608 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 100839 100528 249 482 0 100355 0
Current children cumulated CPU time (s) 9.59
Current children cumulated vsize (KiB) 403356

[startup+9.70071 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 32241
/proc/meminfo: memFree=1430156/2059040 swapFree=4136716/4192956
[pid=32240] ppid=32238 vsize=403356 CPUtime=9.69
/proc/32240/stat : 32240 (pbct) R 32238 32240 32037 0 -1 4202496 121940 0 0 0 919 50 0 0 25 0 1 0 28647983 413036544 100528 1992294400 134512640 136485738 4293186608 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32240/statm: 100839 100528 249 482 0 100355 0
Current children cumulated CPU time (s) 9.69
Current children cumulated vsize (KiB) 403356

Child status: 0
Real time (s): 9.79956
CPU time (s): 9.79651
CPU user time (s): 9.24959
CPU system time (s): 0.546916
CPU usage (%): 99.9688
Max. virtual memory (cumulated for all children) (KiB): 465520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.24959
system time used= 0.546916
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 121941
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= 34

runsolver used 0.016997 second user time and 0.052991 second system time

The end

Launcher Data 

Begin job on node012 at 2010-06-14 17:47:44
IDJOB=2668679
IDBENCH=2328
IDSOLVER=1170
FILE ID=node012/2668679-1276530464
PBS_JOBID= 11173452
Free space on /tmp= 62504 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos7.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668679-1276530464/watcher-2668679-1276530464 -o /tmp/evaluation-result-2668679-1276530464/solver-2668679-1276530464 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668679-1276530464.opb

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

MD5SUM BENCH= f5e09fc51fdb6e7c65b10c880b18ec53
RANDOM SEED=1046563297

node012.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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1850556 kB
Buffers:         24948 kB
Cached:         104688 kB
SwapCached:       9440 kB
Active:          74104 kB
Inactive:        68008 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1850556 kB
SwapTotal:     4192956 kB
SwapFree:      4136716 kB
Dirty:            3380 kB
Writeback:           0 kB
AnonPages:       10928 kB
Mapped:           9284 kB
Slab:            44500 kB
PageTables:       3912 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181776 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= 62500 MiB
End job on node012 at 2010-06-14 17:47:54