Trace number 459466

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 NameAnswerObjective functionCPU timeWall clock time
PBS4_v2 2007-03-23OPT3 6.32004 6.32608

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=6-P0=11-P1=37-P2=37-P3=29-B.opb
MD5SUMcbe543752cefcfc8b074d7a209a42328
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.038993
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables54
Total number of constraints7
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints7
Minimum length of a constraint6
Maximum length of a constraint48
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8064
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)108
Sum of products size (including duplicates)216
Number of different products108
Sum of products size216

Quality of the solution as a function of time


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

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/459466-1178655132/instance-459466-1178655132.opb ......
0.00/0.01	c done parsing opb.
0.00/0.01	o 39
0.00/0.02	o 29
0.00/0.04	o 27
0.06/0.08	o 7
0.06/0.09	o 3
6.29/6.32	o 3
6.29/6.32	s OPTIMUM FOUND
6.29/6.32	c Total Run Time					6.31404
6.29/6.32	v x1 x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 x109 -x11 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118
6.29/6.32	v -x119 x12 -x120 -x121 -x122 -x123 -x124 -x125 -x126 x127 x128 -x129 x13 x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138
6.29/6.32	v x139 x14 x140 -x141 x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x15 -x150 x151 x152 -x153 x154 -x155 -x156 -x157 -x158
6.29/6.32	v -x159 x16 -x160 -x161 -x162 -x17 -x18 x19 x2 -x20 x21 -x22 x23 -x24 x25 -x26 -x27 -x28 -x29 -x3 -x30 x31 x32 -x33 x34 -x35 -x36
6.29/6.32	v -x37 x38 -x39 -x4 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 x49 -x5 x50 -x51 -x52 -x53 -x54 x55 x56 -x57 -x58 -x59 -x6 -x60 x61
6.29/6.32	v x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 x7 -x70 -x71 -x72 x73 x74 -x75 -x76 -x77 -x78 -x79 x8 -x80 -x81 -x82 -x83 -x84 x85 x86 -x87
6.29/6.32	v -x88 -x89 -x9 -x90 x91 -x92 -x93 -x94 -x95 -x96 x97 -x98 -x99

Verifier Data (download as text)

OK	3

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/459466-1178655132/instance-459466-1178655132.opb

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node58/watcher-459466-1178655132 -o ROOT/results/node58/solver-459466-1178655132 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/459466-1178655132/instance-459466-1178655132.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: 1.00 1.00 1.00 3/64 26646
/proc/meminfo: memFree=1456000/2055920 swapFree=4184552/4192956
[pid=26646] ppid=26644 vsize=1324 CPUtime=0
/proc/26646/stat : 26646 (PBS4_SAT07v2) R 26644 26646 26324 0 -1 4194304 126 0 0 0 0 0 0 0 19 0 1 0 313422865 1355776 108 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135023156 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26646/statm: 331 109 86 219 0 108 0

[startup+0.0652919 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 26646
/proc/meminfo: memFree=1456000/2055920 swapFree=4184552/4192956
[pid=26646] ppid=26644 vsize=1708 CPUtime=0.06
/proc/26646/stat : 26646 (PBS4_SAT07v2) R 26644 26646 26324 0 -1 4194304 258 0 0 0 6 0 0 0 19 0 1 0 313422865 1748992 240 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26646/statm: 427 240 102 219 0 204 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1708

[startup+0.101298 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 26646
/proc/meminfo: memFree=1456000/2055920 swapFree=4184552/4192956
[pid=26646] ppid=26644 vsize=1708 CPUtime=0.09
/proc/26646/stat : 26646 (PBS4_SAT07v2) R 26644 26646 26324 0 -1 4194304 310 0 0 0 9 0 0 0 19 0 1 0 313422865 1748992 292 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26646/statm: 427 292 102 219 0 204 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1708

[startup+0.30133 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 26646
/proc/meminfo: memFree=1456000/2055920 swapFree=4184552/4192956
[pid=26646] ppid=26644 vsize=3636 CPUtime=0.29
/proc/26646/stat : 26646 (PBS4_SAT07v2) R 26644 26646 26324 0 -1 4194304 570 0 0 0 29 0 0 0 20 0 1 0 313422865 3723264 552 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26646/statm: 909 552 102 219 0 686 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3636

[startup+0.701397 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 26646
/proc/meminfo: memFree=1456000/2055920 swapFree=4184552/4192956
[pid=26646] ppid=26644 vsize=3768 CPUtime=0.68
/proc/26646/stat : 26646 (PBS4_SAT07v2) R 26644 26646 26324 0 -1 4194304 814 0 0 0 68 0 0 0 24 0 1 0 313422865 3858432 796 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26646/statm: 942 796 102 219 0 719 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 3768

[startup+1.50153 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26647
/proc/meminfo: memFree=1452792/2055920 swapFree=4184552/4192956
[pid=26646] ppid=26644 vsize=6276 CPUtime=1.49
/proc/26646/stat : 26646 (PBS4_SAT07v2) R 26644 26646 26324 0 -1 4194304 1084 0 0 0 148 1 0 0 25 0 1 0 313422865 6426624 1017 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26646/statm: 1569 1017 102 219 0 1346 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6276

[startup+3.1028 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26647
/proc/meminfo: memFree=1451704/2055920 swapFree=4184552/4192956
[pid=26646] ppid=26644 vsize=6708 CPUtime=3.09
/proc/26646/stat : 26646 (PBS4_SAT07v2) R 26644 26646 26324 0 -1 4194304 1393 0 0 0 307 2 0 0 25 0 1 0 313422865 6868992 1326 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26646/statm: 1677 1326 102 219 0 1454 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6708

[startup+6.30133 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 26647
/proc/meminfo: memFree=1449464/2055920 swapFree=4184552/4192956
[pid=26646] ppid=26644 vsize=7664 CPUtime=6.29
/proc/26646/stat : 26646 (PBS4_SAT07v2) R 26644 26646 26324 0 -1 4194304 1877 0 0 0 625 4 0 0 25 0 1 0 313422865 7847936 1713 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26646/statm: 1916 1713 102 219 0 1693 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7664

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

Child status: 0
Real time (s): 6.32608
CPU time (s): 6.32004
CPU user time (s): 6.27305
CPU system time (s): 0.046992
CPU usage (%): 99.9044
Max. virtual memory (cumulated for all children) (KiB): 7664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.27305
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1884
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= 7
involuntary context switches= 4

runsolver used 0.002999 second user time and 0.018997 second system time

The end

Launcher Data (download as text)

Begin job on node58 on Tue May  8 20:12:12 UTC 2007

IDJOB= 459466
IDBENCH= 47927
IDSOLVER= 200
FILE ID= node58/459466-1178655132

PBS_JOBID= 5218426

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=11-P1=37-P2=37-P3=29-B.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/459466-1178655132/instance-459466-1178655132.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node58/convwatcher-459466-1178655132 -o ROOT/results/node58/conversion-459466-1178655132 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/459466-1178655132/instance-459466-1178655132.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node58/watcher-459466-1178655132 -o ROOT/results/node58/solver-459466-1178655132 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/459466-1178655132/instance-459466-1178655132.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  cbe543752cefcfc8b074d7a209a42328

RANDOM SEED= 777214338

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node58.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		: 3000.265
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		: 3000.265
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:       1456408 kB
Buffers:         37612 kB
Cached:         441628 kB
SwapCached:       2472 kB
Active:         250340 kB
Inactive:       238628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1456408 kB
SwapTotal:     4192956 kB
SwapFree:      4184552 kB
Dirty:            2260 kB
Writeback:           0 kB
Mapped:          16176 kB
Slab:            96604 kB
Committed_AS:  4576528 kB
PageTables:       1380 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 node58 on Tue May  8 20:12:18 UTC 2007