Trace number 2683069

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 fixedOPT-1281 2.08368 2.08459

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/submitted-PB06/roussel/factor/
normalized-factor-sizeN=20-sizeP=11-sizeQ=20-900543-max.opb
MD5SUMc49ae2232cc025bcb67a7710817d2f1e
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-1281
Best CPU time to get the best result obtained on this benchmark1.9497
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -1281
Optimality of the best value was proved YES
Number of variables251
Total number of constraints661
Number of constraints which are clauses660
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint220
Number of terms in the objective function 11
Biggest coefficient in the objective function 1024
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 2047
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 536870912
Number of bits of the biggest number in a constraint 30
Biggest sum of numbers in a constraint 2147333568
Number of bits of the biggest sum of numbers31
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

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 1/0 clauses 660/0 units 0
0.00/0.00	c vars 251
0.00/0.00	c objective 11 + -2047
0.09/0.19	c 0.177972 6.32812 641 4507
0.09/0.19	o -21
0.89/0.91	c 0.883865 6.47266 537 16799
0.89/0.91	o -57
0.89/0.92	c 0.894863 6.47266 399 17067
0.89/0.92	o -61
0.89/0.98	c 0.952855 6.47266 507 18507
0.89/0.98	o -111
1.39/1.42	c 1.37379 6.47266 431 25613
1.39/1.42	o -259
1.59/1.68	c 1.60875 6.47266 526 29841
1.59/1.68	o -777
1.79/1.82	c 1.74773 6.47266 507 32428
1.79/1.82	o -1159
1.89/1.93	c 1.84672 6.47266 498 34054
1.89/1.93	o -1281
1.99/2.07	c 1.9747 6.47266 609 36559
1.99/2.07	s OPTIMUM FOUND
1.99/2.07	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 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x190 -x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x210 -x211 x212 x213 x214 x215 x216 x217 -x218 x219 -x220 x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230 -x231 -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x250 -x251

Verifier Data 

OK	-1281

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2683069-1277495040/watcher-2683069-1277495040 -o /tmp/evaluation-result-2683069-1277495040/solver-2683069-1277495040 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2683069-1277495040.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: 0.92 0.98 0.99 3/106 23240
/proc/meminfo: memFree=1908464/2059040 swapFree=4139120/4192956
[pid=23240] ppid=23238 vsize=2656 CPUtime=0
/proc/23240/stat : 23240 (pbct) R 23238 23240 23004 0 -1 4202496 283 0 0 0 0 0 0 0 20 0 1 0 123160314 2719744 203 1992294400 134512640 136421960 4292410144 18446744073709551615 135878019 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23240/statm: 664 216 174 467 0 195 0

[startup+0.085594 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23240
/proc/meminfo: memFree=1908464/2059040 swapFree=4139120/4192956
[pid=23240] ppid=23238 vsize=6348 CPUtime=0.07
/proc/23240/stat : 23240 (pbct) R 23238 23240 23004 0 -1 4202496 1302 0 0 0 7 0 0 0 20 0 1 0 123160314 6500352 1222 1992294400 134512640 136421960 4292410144 18446744073709551615 134861902 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23240/statm: 1587 1222 217 467 0 1118 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6348

[startup+0.101596 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23240
/proc/meminfo: memFree=1908464/2059040 swapFree=4139120/4192956
[pid=23240] ppid=23238 vsize=6348 CPUtime=0.09
/proc/23240/stat : 23240 (pbct) R 23238 23240 23004 0 -1 4202496 1316 0 0 0 9 0 0 0 20 0 1 0 123160314 6500352 1236 1992294400 134512640 136421960 4292410144 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23240/statm: 1587 1236 217 467 0 1118 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6348

[startup+0.300634 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23240
/proc/meminfo: memFree=1908464/2059040 swapFree=4139120/4192956
[pid=23240] ppid=23238 vsize=6624 CPUtime=0.29
/proc/23240/stat : 23240 (pbct) R 23238 23240 23004 0 -1 4202496 1397 0 0 0 28 1 0 0 20 0 1 0 123160314 6782976 1316 1992294400 134512640 136421960 4292410144 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23240/statm: 1656 1316 239 467 0 1187 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6624

[startup+0.700709 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23240
/proc/meminfo: memFree=1908464/2059040 swapFree=4139120/4192956
[pid=23240] ppid=23238 vsize=6624 CPUtime=0.69
/proc/23240/stat : 23240 (pbct) R 23238 23240 23004 0 -1 4202496 1400 0 0 0 67 2 0 0 21 0 1 0 123160314 6782976 1319 1992294400 134512640 136421960 4292410144 18446744073709551615 134640961 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23240/statm: 1656 1319 239 467 0 1187 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6624

[startup+1.50086 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 23241
/proc/meminfo: memFree=1903992/2059040 swapFree=4139120/4192956
[pid=23240] ppid=23238 vsize=6624 CPUtime=1.49
/proc/23240/stat : 23240 (pbct) R 23238 23240 23004 0 -1 4202496 1404 0 0 0 144 5 0 0 23 0 1 0 123160314 6782976 1319 1992294400 134512640 136421960 4292410144 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23240/statm: 1656 1319 239 467 0 1187 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6624

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

[startup+1.90093 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 23241
/proc/meminfo: memFree=1903992/2059040 swapFree=4139120/4192956
[pid=23240] ppid=23238 vsize=6624 CPUtime=1.89
/proc/23240/stat : 23240 (pbct) R 23238 23240 23004 0 -1 4202496 1406 0 0 0 181 8 0 0 25 0 1 0 123160314 6782976 1319 1992294400 134512640 136421960 4292410144 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23240/statm: 1656 1319 239 467 0 1187 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 6624

[startup+2.00095 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 23241
/proc/meminfo: memFree=1903992/2059040 swapFree=4139120/4192956
[pid=23240] ppid=23238 vsize=6624 CPUtime=1.99
/proc/23240/stat : 23240 (pbct) R 23238 23240 23004 0 -1 4202496 1407 0 0 0 191 8 0 0 25 0 1 0 123160314 6782976 1319 1992294400 134512640 136421960 4292410144 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23240/statm: 1656 1319 239 467 0 1187 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 6624

Child status: 0
Real time (s): 2.08459
CPU time (s): 2.08368
CPU user time (s): 1.9827
CPU system time (s): 0.100984
CPU usage (%): 99.9566
Max. virtual memory (cumulated for all children) (KiB): 6624

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9827
system time used= 0.100984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1412
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= 26

runsolver used 0.006998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node019 at 2010-06-25 21:44:00
IDJOB=2683069
IDBENCH=3041
IDSOLVER=1192
FILE ID=node019/2683069-1277495040
PBS_JOBID= 11190577
Free space on /tmp= 62272 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06/final/normalized-PB06/OPT-BIGINT/submitted-PB06/roussel/factor/normalized-factor-sizeN=20-sizeP=11-sizeQ=20-900543-max.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683069-1277495040/watcher-2683069-1277495040 -o /tmp/evaluation-result-2683069-1277495040/solver-2683069-1277495040 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2683069-1277495040.opb

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

MD5SUM BENCH= c49ae2232cc025bcb67a7710817d2f1e
RANDOM SEED=541071858

node019.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		: 3000.264
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	: 6000.52
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		: 3000.264
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:       1908992 kB
Buffers:          5936 kB
Cached:          62904 kB
SwapCached:       6036 kB
Active:          68564 kB
Inactive:        12936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1908992 kB
SwapTotal:     4192956 kB
SwapFree:      4139120 kB
Dirty:            1904 kB
Writeback:           0 kB
AnonPages:       11380 kB
Mapped:          11936 kB
Slab:            46688 kB
PageTables:       4168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182336 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= 62272 MiB
End job on node019 at 2010-06-25 21:44:02