Trace number 458255

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, and are wall clock time (not CPU 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
PBS4_v2 2007-03-23SAT 28.0767 28.0878

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900547334.opb
MD5SUM0a9770757b6cd9327f36ff7b48e0a712
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.359944
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables231
Total number of constraints2707
Number of constraints which are clauses2684
Number of constraints which are cardinality constraints (but not clauses)22
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint110
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 25
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 661
Number of bits of the biggest sum of numbers10
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/458255-1178620791/instance-458255-1178620791.opb ......
27.98/28.08	c done parsing opb.
27.98/28.08	s SATISFIABLE
27.98/28.08	c Total Run Time					28.0507
27.98/28.08	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 x107 -x108 -x109 -x11 -x110 -x111 x112 -x113 -x114 -x115 -x116 -x117 -x118
27.98/28.08	v -x119 x12 -x120 -x121 -x122 x123 -x124 -x125 -x126 -x127 -x128 -x129 -x13 -x130 -x131 -x132 -x133 -x134 x135 -x136 -x137 -x138
27.98/28.08	v -x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x15 -x150 x151 -x152 -x153 -x154 -x155 x156 -x157
27.98/28.08	v -x158 -x159 -x16 -x160 -x161 x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x170 -x171 -x172 -x173 -x174 -x175 -x176
27.98/28.08	v x177 -x178 -x179 -x18 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x19 x190 -x191 -x192 x193 -x194 -x195 -x196
27.98/28.08	v -x197 -x198 -x199 -x2 -x20 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 x209 -x21 -x210 -x211 -x212 -x213 -x214 -x215
27.98/28.08	v -x216 -x217 -x218 -x219 -x22 x220 -x221 -x222 -x223 -x224 x225 -x226 -x227 -x228 -x229 -x23 -x230 -x231 -x24 x25 -x26 -x27
27.98/28.08	v -x28 -x29 -x3 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x4 -x40 -x41 -x42 -x43 x44 -x45 -x46 -x47 x48 -x49 x5 -x50 -x51
27.98/28.08	v -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x6 -x60 x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x7 -x70 -x71 -x72 x73 -x74 -x75 -x76
27.98/28.08	v -x77 -x78 -x79 -x8 -x80 -x81 -x82 -x83 -x84 -x85 -x86 x87 -x88 -x89 -x9 -x90 -x91 -x92 -x93 -x94 -x95 -x96 x97 -x98 -x99

Verifier Data (download as text)

OK	0

Conversion Script Data (download as text)

/tmp/evaluation/458255-1178620791/instance-458255-1178620791.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node69/watcher-458255-1178620791 -o ROOT/results/node69/solver-458255-1178620791 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458255-1178620791/instance-458255-1178620791.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 29377
/proc/meminfo: memFree=1501572/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=1324 CPUtime=0
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 338068602 1355776 120 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134518540 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 331 120 86 219 0 108 0

[startup+0.0660599 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 29377
/proc/meminfo: memFree=1501572/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=1472 CPUtime=0.06
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 229 0 0 0 6 0 0 0 18 0 1 0 338068602 1507328 211 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 368 211 90 219 0 145 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1472

[startup+0.101065 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 29377
/proc/meminfo: memFree=1501572/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=1604 CPUtime=0.09
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 253 0 0 0 9 0 0 0 18 0 1 0 338068602 1642496 235 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 401 235 90 219 0 178 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1604

[startup+0.301097 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 29377
/proc/meminfo: memFree=1501572/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=2568 CPUtime=0.29
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 399 0 0 0 29 0 0 0 19 0 1 0 338068602 2629632 381 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 642 381 90 219 0 419 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2568

[startup+0.701162 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 29377
/proc/meminfo: memFree=1501572/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=3784 CPUtime=0.69
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 659 0 0 0 69 0 0 0 22 0 1 0 338068602 3874816 592 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 946 592 90 219 0 723 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3784

[startup+1.50129 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 29378
/proc/meminfo: memFree=1498748/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=6228 CPUtime=1.49
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 1077 0 0 0 148 1 0 0 25 0 1 0 338068602 6377472 1010 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 1557 1010 90 219 0 1334 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6228

[startup+3.10155 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 29378
/proc/meminfo: memFree=1496828/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=7284 CPUtime=3.08
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 1664 0 0 0 306 2 0 0 25 0 1 0 338068602 7458816 1500 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 1821 1500 90 219 0 1598 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 7284

[startup+6.30107 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 29378
/proc/meminfo: memFree=1493116/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=12968 CPUtime=6.29
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 2686 0 0 0 625 4 0 0 25 0 1 0 338068602 13279232 2329 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134547222 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 3242 2329 90 219 0 3019 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 12968

[startup+12.7011 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 29378
/proc/meminfo: memFree=1487228/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=22640 CPUtime=12.69
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 4079 0 0 0 1261 8 0 0 25 0 1 0 338068602 23183360 3722 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134546904 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 5660 3722 90 219 0 5437 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 22640

[startup+25.5012 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 29378
/proc/meminfo: memFree=1479484/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=26128 CPUtime=25.48
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 6290 0 0 0 2536 12 0 0 25 0 1 0 338068602 26755072 5548 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544680 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 6532 5548 90 219 0 6309 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 26128

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

[startup+27.1014 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 29378
/proc/meminfo: memFree=1479036/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=26320 CPUtime=27.09
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 6479 0 0 0 2696 13 0 0 25 0 1 0 338068602 26951680 5737 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134546912 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 6580 5737 90 219 0 6357 0
Current children cumulated CPU time (s) 27.09
Current children cumulated vsize (KiB) 26320

[startup+27.5055 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 29378
/proc/meminfo: memFree=1478460/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=26480 CPUtime=27.49
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 6539 0 0 0 2736 13 0 0 25 0 1 0 338068602 27115520 5797 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134547376 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 6620 5797 90 219 0 6397 0
Current children cumulated CPU time (s) 27.49
Current children cumulated vsize (KiB) 26480

[startup+27.9016 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 29378
/proc/meminfo: memFree=1478460/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=26480 CPUtime=27.88
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 6588 0 0 0 2775 13 0 0 25 0 1 0 338068602 27115520 5846 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 6620 5846 90 219 0 6397 0
Current children cumulated CPU time (s) 27.88
Current children cumulated vsize (KiB) 26480

[startup+28.0016 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 29378
/proc/meminfo: memFree=1478460/2055920 swapFree=4183084/4192956
[pid=29377] ppid=29375 vsize=26480 CPUtime=27.98
/proc/29377/stat : 29377 (PBS4_SAT07v2) R 29375 29377 28668 0 -1 4194304 6606 0 0 0 2785 13 0 0 25 0 1 0 338068602 27115520 5864 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134550531 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29377/statm: 6620 5864 90 219 0 6397 0
Current children cumulated CPU time (s) 27.98
Current children cumulated vsize (KiB) 26480

Child status: 0
Real time (s): 28.0878
CPU time (s): 28.0767
CPU user time (s): 27.9388
CPU system time (s): 0.137979
CPU usage (%): 99.9605
Max. virtual memory (cumulated for all children) (KiB): 26480

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.9388
system time used= 0.137979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6627
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= 8
involuntary context switches= 41

runsolver used 0.020996 second user time and 0.06299 second system time

The end

Launcher Data (download as text)

Begin job on node69 on Tue May  8 10:39:52 UTC 2007

IDJOB= 458255
IDBENCH= 1332
IDSOLVER= 200
FILE ID= node69/458255-1178620791

PBS_JOBID= 5218255

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900547334.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458255-1178620791/instance-458255-1178620791.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node69/convwatcher-458255-1178620791 -o ROOT/results/node69/conversion-458255-1178620791 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458255-1178620791/instance-458255-1178620791.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node69/watcher-458255-1178620791 -o ROOT/results/node69/solver-458255-1178620791 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458255-1178620791/instance-458255-1178620791.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  0a9770757b6cd9327f36ff7b48e0a712

RANDOM SEED= 626898827

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node69.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5931.00
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
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1501980 kB
Buffers:         36924 kB
Cached:         418064 kB
SwapCached:       4012 kB
Active:          81712 kB
Inactive:       383516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1501980 kB
SwapTotal:     4192956 kB
SwapFree:      4183084 kB
Dirty:            2332 kB
Writeback:           0 kB
Mapped:          16224 kB
Slab:            74700 kB
Committed_AS:  7698888 kB
PageTables:       1472 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66562 MiB

End job on node69 on Tue May  8 10:40:20 UTC 2007