Trace number 2682441

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 NameAnswerCPU timeWall clock time
PB/CT 0.1 fixedSAT 2.83357 2.83376

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110971766.opb
MD5SUM4ce656c7025396ed91a180996d592d66
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.168973
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1210
Number of bits of the biggest sum of numbers11
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.00	c constraints 71/0 clauses 30/0 units 0
0.00/0.00	c vars 169
2.79/2.82	c 2.54461 7.80078 1518 14649
2.79/2.82	s SATISFIABLE
2.79/2.82	v -x1 -x2 -x3 -x4 x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 x21 -x22 -x23 -x24 -x25 -x26 -x27 x28 -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 x50 -x51 -x52 -x53 -x54 x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86 x87 -x88 -x89 -x90 -x91 x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 x116 -x117 -x118 -x119 -x120 x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 x166 -x167 -x168 -x169

Verifier Data 

OK	0

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682441-1277475629/watcher-2682441-1277475629 -o /tmp/evaluation-result-2682441-1277475629/solver-2682441-1277475629 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682441-1277475629.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: 0.00 0.00 0.00 3/106 30184
/proc/meminfo: memFree=1774420/2059040 swapFree=4135576/4192956
[pid=30184] ppid=30182 vsize=3444 CPUtime=0
/proc/30184/stat : 30184 (pbct) R 30182 30184 30159 0 -1 4202496 580 0 0 0 0 0 0 0 18 0 1 0 123166911 3526656 500 1992294400 134512640 136421960 4289633856 18446744073709551615 134651289 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30184/statm: 861 500 193 467 0 392 0

[startup+0.0352629 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 30184
/proc/meminfo: memFree=1774420/2059040 swapFree=4135576/4192956
[pid=30184] ppid=30182 vsize=5548 CPUtime=0.02
/proc/30184/stat : 30184 (pbct) R 30182 30184 30159 0 -1 4202496 1083 0 0 0 2 0 0 0 20 0 1 0 123166911 5681152 1003 1992294400 134512640 136421960 4289633856 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30184/statm: 1387 1004 193 467 0 918 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 5548

[startup+0.10127 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 30184
/proc/meminfo: memFree=1774420/2059040 swapFree=4135576/4192956
[pid=30184] ppid=30182 vsize=7336 CPUtime=0.09
/proc/30184/stat : 30184 (pbct) R 30182 30184 30159 0 -1 4202496 1542 0 0 0 8 1 0 0 20 0 1 0 123166911 7512064 1462 1992294400 134512640 136421960 4289633856 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30184/statm: 1834 1462 213 467 0 1365 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7336

[startup+0.30129 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 30184
/proc/meminfo: memFree=1774420/2059040 swapFree=4135576/4192956
[pid=30184] ppid=30182 vsize=7464 CPUtime=0.29
/proc/30184/stat : 30184 (pbct) R 30182 30184 30159 0 -1 4202496 1579 0 0 0 26 3 0 0 20 0 1 0 123166911 7643136 1499 1992294400 134512640 136421960 4289633856 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30184/statm: 1866 1499 213 467 0 1397 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7464

[startup+0.70133 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 30184
/proc/meminfo: memFree=1774420/2059040 swapFree=4135576/4192956
[pid=30184] ppid=30182 vsize=7596 CPUtime=0.69
/proc/30184/stat : 30184 (pbct) R 30182 30184 30159 0 -1 4202496 1605 0 0 0 62 7 0 0 21 0 1 0 123166911 7778304 1525 1992294400 134512640 136421960 4289633856 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30184/statm: 1899 1525 213 467 0 1430 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7596

[startup+1.50141 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 30185
/proc/meminfo: memFree=1768832/2059040 swapFree=4135576/4192956
[pid=30184] ppid=30182 vsize=7724 CPUtime=1.49
/proc/30184/stat : 30184 (pbct) R 30182 30184 30159 0 -1 4202496 1647 0 0 0 135 14 0 0 23 0 1 0 123166911 7909376 1567 1992294400 134512640 136421960 4289633856 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30184/statm: 1931 1567 213 467 0 1462 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7724

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

[startup+2.30149 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 30185
/proc/meminfo: memFree=1768460/2059040 swapFree=4135576/4192956
[pid=30184] ppid=30182 vsize=7984 CPUtime=2.29
/proc/30184/stat : 30184 (pbct) R 30182 30184 30159 0 -1 4202496 1690 0 0 0 207 22 0 0 25 0 1 0 123166911 8175616 1610 1992294400 134512640 136421960 4289633856 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30184/statm: 1996 1610 213 467 0 1527 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 7984

[startup+2.70153 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 30185
/proc/meminfo: memFree=1768460/2059040 swapFree=4135576/4192956
[pid=30184] ppid=30182 vsize=7984 CPUtime=2.69
/proc/30184/stat : 30184 (pbct) R 30182 30184 30159 0 -1 4202496 1690 0 0 0 243 26 0 0 25 0 1 0 123166911 8175616 1610 1992294400 134512640 136421960 4289633856 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30184/statm: 1996 1610 213 467 0 1527 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 7984

[startup+2.80154 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 30185
/proc/meminfo: memFree=1768460/2059040 swapFree=4135576/4192956
[pid=30184] ppid=30182 vsize=7984 CPUtime=2.79
/proc/30184/stat : 30184 (pbct) R 30182 30184 30159 0 -1 4202496 1690 0 0 0 252 27 0 0 25 0 1 0 123166911 8175616 1610 1992294400 134512640 136421960 4289633856 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30184/statm: 1996 1610 213 467 0 1527 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 7984

Child status: 0
Real time (s): 2.83376
CPU time (s): 2.83357
CPU user time (s): 2.55761
CPU system time (s): 0.275958
CPU usage (%): 99.9933
Max. virtual memory (cumulated for all children) (KiB): 7984

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.55761
system time used= 0.275958
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1717
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= 37

runsolver used 0.008998 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-25 16:20:29
IDJOB=2682441
IDBENCH=1179
IDSOLVER=1192
FILE ID=node002/2682441-1277475629
PBS_JOBID= 11190533
Free space on /tmp= 62412 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110971766.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682441-1277475629/watcher-2682441-1277475629 -o /tmp/evaluation-result-2682441-1277475629/solver-2682441-1277475629 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682441-1277475629.opb

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

MD5SUM BENCH= 4ce656c7025396ed91a180996d592d66
RANDOM SEED=420229504

node002.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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1774948 kB
Buffers:         36780 kB
Cached:         147716 kB
SwapCached:       9840 kB
Active:          65928 kB
Inactive:       131388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1774948 kB
SwapTotal:     4192956 kB
SwapFree:      4135576 kB
Dirty:            2128 kB
Writeback:           0 kB
AnonPages:       11520 kB
Mapped:           8252 kB
Slab:            64896 kB
PageTables:       4172 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181976 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= 62412 MiB
End job on node002 at 2010-06-25 16:20:32