Trace number 360113

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 2007-03-23SAT 0.824874 0.826996

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900547427.opb
MD5SUM1354b5547377d8c2faefb00752f6b79c
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 benchmark0.066988
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 655
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/360113-1176955617/instance-360113-1176955617.opb ......
0.79/0.82	c done parsing opb.
0.79/0.82	s SATISFIABLE
0.79/0.82	c Total Run Time					0.800878
0.79/0.82	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 x108 -x109 -x11 -x110 -x111 -x112 -x113 -x114 x115 -x116 -x117 -x118
0.79/0.82	v -x119 -x12 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 x128 -x129 -x13 -x130 -x131 -x132 -x133 x134 -x135 -x136 -x137
0.79/0.82	v -x138 -x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 x146 -x147 -x148 -x149 x15 -x150 -x151 -x152 -x153 -x154 -x155 -x156
0.79/0.82	v -x157 -x158 -x159 -x16 -x160 x161 -x162 x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x170 -x171 x172 -x173 -x174 -x175 -x176
0.79/0.82	v -x177 -x178 -x179 -x18 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x19 x190 -x191 -x192 -x193 -x194 -x195
0.79/0.82	v -x196 -x197 -x198 x199 x2 -x20 -x200 -x201 -x202 -x203 -x204 -x205 x206 -x207 -x208 -x209 -x21 -x210 -x211 -x212 -x213 x214
0.79/0.82	v -x215 -x216 -x217 -x218 -x219 -x22 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 x228 -x229 -x23 -x230 -x231 -x24 -x25 -x26
0.79/0.82	v -x27 -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
0.79/0.82	v -x51 -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
0.79/0.82	v -x76 -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/360113-1176955617/instance-360113-1176955617.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node52/watcher-360113-1176955617 -o ROOT/results/node52/solver-360113-1176955617 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/360113-1176955617/PBS4 /tmp/evaluation/360113-1176955617/instance-360113-1176955617.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: 1.02 1.00 1.00 3/64 8859
/proc/meminfo: memFree=1883660/2055920 swapFree=4182956/4192956
[pid=8859] ppid=8857 vsize=1324 CPUtime=0
/proc/8859/stat : 8859 (PBS4) R 8857 8859 7383 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 50406803 1355776 121 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 134804335 0 0 4096 0 0 0 0 17 1 0 0
/proc/8859/statm: 331 121 87 219 0 108 0

[startup+0.0329859 s]
/proc/loadavg: 1.02 1.00 1.00 3/64 8859
/proc/meminfo: memFree=1883660/2055920 swapFree=4182956/4192956
[pid=8859] ppid=8857 vsize=1472 CPUtime=0.03
/proc/8859/stat : 8859 (PBS4) R 8857 8859 7383 0 -1 4194304 203 0 0 0 3 0 0 0 18 0 1 0 50406803 1507328 185 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8859/statm: 368 185 92 219 0 145 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1472

[startup+0.10199 s]
/proc/loadavg: 1.02 1.00 1.00 3/64 8859
/proc/meminfo: memFree=1883660/2055920 swapFree=4182956/4192956
[pid=8859] ppid=8857 vsize=1728 CPUtime=0.09
/proc/8859/stat : 8859 (PBS4) R 8857 8859 7383 0 -1 4194304 258 0 0 0 9 0 0 0 18 0 1 0 50406803 1769472 240 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8859/statm: 432 240 93 219 0 209 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1728

[startup+0.302004 s]
/proc/loadavg: 1.02 1.00 1.00 3/64 8859
/proc/meminfo: memFree=1883660/2055920 swapFree=4182956/4192956
[pid=8859] ppid=8857 vsize=2568 CPUtime=0.29
/proc/8859/stat : 8859 (PBS4) R 8857 8859 7383 0 -1 4194304 406 0 0 0 29 0 0 0 19 0 1 0 50406803 2629632 388 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8859/statm: 642 388 93 219 0 419 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2568

[startup+0.701031 s]
/proc/loadavg: 1.02 1.00 1.00 3/64 8859
/proc/meminfo: memFree=1883660/2055920 swapFree=4182956/4192956
[pid=8859] ppid=8857 vsize=3916 CPUtime=0.69
/proc/8859/stat : 8859 (PBS4) R 8857 8859 7383 0 -1 4194304 694 0 0 0 69 0 0 0 22 0 1 0 50406803 4009984 627 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8859/statm: 979 627 94 219 0 756 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3916

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

[startup+0.801038 s]
/proc/loadavg: 1.02 1.00 1.00 3/64 8859
/proc/meminfo: memFree=1883660/2055920 swapFree=4182956/4192956
[pid=8859] ppid=8857 vsize=3916 CPUtime=0.79
/proc/8859/stat : 8859 (PBS4) R 8857 8859 7383 0 -1 4194304 743 0 0 0 79 0 0 0 23 0 1 0 50406803 4009984 676 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8859/statm: 979 676 94 219 0 756 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 3916

Child status: 0
Real time (s): 0.826996
CPU time (s): 0.824874
CPU user time (s): 0.813876
CPU system time (s): 0.010998
CPU usage (%): 99.7434
Max. virtual memory (cumulated for all children) (KiB): 3916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.813876
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 776
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= 1

runsolver used 0.003999 second user time and 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node52 on Thu Apr 19 04:06:57 UTC 2007

IDJOB= 360113
IDBENCH= 1345
IDSOLVER= 157
FILE ID= node52/360113-1176955617

PBS_JOBID= 4605779

Free space on /tmp= 66313 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900547427.opb
COMMAND LINE= /tmp/evaluation/360113-1176955617/PBS4 /tmp/evaluation/360113-1176955617/instance-360113-1176955617.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node52/convwatcher-360113-1176955617 -o ROOT/results/node52/conversion-360113-1176955617 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/360113-1176955617/instance-360113-1176955617.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-360113-1176955617 -o ROOT/results/node52/solver-360113-1176955617 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/360113-1176955617/PBS4 /tmp/evaluation/360113-1176955617/instance-360113-1176955617.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  1354b5547377d8c2faefb00752f6b79c

RANDOM SEED= 531603425

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node52.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		: 3000.236
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	: 5914.62
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		: 3000.236
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:       1884068 kB
Buffers:         18384 kB
Cached:         104080 kB
SwapCached:       4288 kB
Active:          70140 kB
Inactive:        62584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1884068 kB
SwapTotal:     4192956 kB
SwapFree:      4182956 kB
Dirty:            1220 kB
Writeback:           0 kB
Mapped:          15752 kB
Slab:            25136 kB
Committed_AS:  1579444 kB
PageTables:       1484 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= 66313 MiB

End job on node52 on Thu Apr 19 04:06:58 UTC 2007