Trace number 458229

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 2.51762 2.51982

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900554375.opb
MD5SUM94c9ec489efaf922d51279ebf575f8fa
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 benchmark0.084986
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/458229-1178620501/instance-458229-1178620501.opb ......
2.49/2.51	c done parsing opb.
2.49/2.51	s SATISFIABLE
2.49/2.51	c Total Run Time					2.49262
2.49/2.51	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 x109 -x11 -x110 -x111 -x112 -x113 -x114 x115 -x116 -x117 -x118
2.49/2.51	v -x119 -x12 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x13 -x130 x131 -x132 -x133 x134 -x135 -x136 -x137
2.49/2.51	v -x138 -x139 x14 -x140 -x141 x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x15 -x150 -x151 -x152 -x153 -x154 -x155 -x156
2.49/2.51	v -x157 -x158 x159 -x16 -x160 -x161 -x162 -x163 -x164 -x165 -x166 x167 -x168 -x169 -x17 -x170 -x171 -x172 -x173 -x174 -x175
2.49/2.51	v -x176 -x177 -x178 -x179 -x18 x180 -x181 -x182 -x183 x184 -x185 -x186 -x187 -x188 -x189 -x19 -x190 -x191 -x192 x193 -x194 -x195
2.49/2.51	v -x196 -x197 -x198 -x199 -x2 -x20 -x200 -x201 -x202 -x203 -x204 -x205 -x206 x207 -x208 -x209 -x21 -x210 -x211 -x212 -x213 -x214
2.49/2.51	v -x215 x216 -x217 -x218 -x219 -x22 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 x229 x23 -x230 -x231 -x24 -x25 -x26
2.49/2.51	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
2.49/2.51	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
2.49/2.51	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/458229-1178620501/instance-458229-1178620501.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/node15/watcher-458229-1178620501 -o ROOT/results/node15/solver-458229-1178620501 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458229-1178620501/instance-458229-1178620501.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: 0.89 1.00 0.99 3/77 18244
/proc/meminfo: memFree=1547824/2055920 swapFree=4169132/4192956
[pid=18244] ppid=18242 vsize=1324 CPUtime=0
/proc/18244/stat : 18244 (PBS4_SAT07v2) R 18242 18244 17491 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 309967742 1355776 120 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134530468 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18244/statm: 331 120 86 219 0 108 0

[startup+0.041848 s]
/proc/loadavg: 0.89 1.00 0.99 3/77 18244
/proc/meminfo: memFree=1547824/2055920 swapFree=4169132/4192956
[pid=18244] ppid=18242 vsize=1472 CPUtime=0.03
/proc/18244/stat : 18244 (PBS4_SAT07v2) R 18242 18244 17491 0 -1 4194304 209 0 0 0 3 0 0 0 18 0 1 0 309967742 1507328 191 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18244/statm: 368 191 90 219 0 145 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1472

[startup+0.101853 s]
/proc/loadavg: 0.89 1.00 0.99 3/77 18244
/proc/meminfo: memFree=1547824/2055920 swapFree=4169132/4192956
[pid=18244] ppid=18242 vsize=1728 CPUtime=0.09
/proc/18244/stat : 18244 (PBS4_SAT07v2) R 18242 18244 17491 0 -1 4194304 254 0 0 0 9 0 0 0 18 0 1 0 309967742 1769472 236 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18244/statm: 432 236 90 219 0 209 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1728

[startup+0.301872 s]
/proc/loadavg: 0.89 1.00 0.99 3/77 18244
/proc/meminfo: memFree=1547824/2055920 swapFree=4169132/4192956
[pid=18244] ppid=18242 vsize=2564 CPUtime=0.29
/proc/18244/stat : 18244 (PBS4_SAT07v2) R 18242 18244 17491 0 -1 4194304 398 0 0 0 29 0 0 0 19 0 1 0 309967742 2625536 380 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18244/statm: 641 380 90 219 0 418 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2564

[startup+0.701908 s]
/proc/loadavg: 0.89 1.00 0.99 3/77 18244
/proc/meminfo: memFree=1547824/2055920 swapFree=4169132/4192956
[pid=18244] ppid=18242 vsize=3912 CPUtime=0.69
/proc/18244/stat : 18244 (PBS4_SAT07v2) R 18242 18244 17491 0 -1 4194304 682 0 0 0 69 0 0 0 22 0 1 0 309967742 4005888 615 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18244/statm: 978 615 90 219 0 755 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3912

[startup+1.50198 s]
/proc/loadavg: 0.89 1.00 0.99 2/78 18245
/proc/meminfo: memFree=1544936/2055920 swapFree=4169132/4192956
[pid=18244] ppid=18242 vsize=6608 CPUtime=1.49
/proc/18244/stat : 18244 (PBS4_SAT07v2) R 18242 18244 17491 0 -1 4194304 1187 0 0 0 148 1 0 0 25 0 1 0 309967742 6766592 1023 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18244/statm: 1652 1023 90 219 0 1429 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6608

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

[startup+2.30105 s]
/proc/loadavg: 0.89 1.00 0.99 2/78 18245
/proc/meminfo: memFree=1542888/2055920 swapFree=4169132/4192956
[pid=18244] ppid=18242 vsize=6872 CPUtime=2.29
/proc/18244/stat : 18244 (PBS4_SAT07v2) R 18242 18244 17491 0 -1 4194304 1495 0 0 0 228 1 0 0 25 0 1 0 309967742 7036928 1331 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18244/statm: 1718 1331 90 219 0 1495 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 6872

[startup+2.50107 s]
/proc/loadavg: 0.89 1.00 0.99 2/78 18245
/proc/meminfo: memFree=1542888/2055920 swapFree=4169132/4192956
[pid=18244] ppid=18242 vsize=7004 CPUtime=2.49
/proc/18244/stat : 18244 (PBS4_SAT07v2) R 18242 18244 17491 0 -1 4194304 1575 0 0 0 248 1 0 0 25 0 1 0 309967742 7172096 1411 18446744073709551615 134512640 135410602 4294956656 18446744073709551615 134546923 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18244/statm: 1751 1411 90 219 0 1528 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 7004

Child status: 0
Real time (s): 2.51982
CPU time (s): 2.51762
CPU user time (s): 2.49762
CPU system time (s): 0.019996
CPU usage (%): 99.9126
Max. virtual memory (cumulated for all children) (KiB): 7004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.49762
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1595
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= 4

runsolver used 0.004999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node15 on Tue May  8 10:35:01 UTC 2007

IDJOB= 458229
IDBENCH= 1306
IDSOLVER= 200
FILE ID= node15/458229-1178620501

PBS_JOBID= 5217781

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-t3002.11tsp11.1900554375.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458229-1178620501/instance-458229-1178620501.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node15/convwatcher-458229-1178620501 -o ROOT/results/node15/conversion-458229-1178620501 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458229-1178620501/instance-458229-1178620501.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-458229-1178620501 -o ROOT/results/node15/solver-458229-1178620501 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458229-1178620501/instance-458229-1178620501.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  94c9ec489efaf922d51279ebf575f8fa

RANDOM SEED= 740565796

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node15.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		: 3000.227
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		: 3000.227
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:       1548296 kB
Buffers:         74508 kB
Cached:         334052 kB
SwapCached:       2840 kB
Active:         247924 kB
Inactive:       184288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1548296 kB
SwapTotal:     4192956 kB
SwapFree:      4169132 kB
Dirty:            2424 kB
Writeback:           0 kB
Mapped:          30624 kB
Slab:            60868 kB
Committed_AS: 10766648 kB
PageTables:       1868 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 node15 on Tue May  8 10:35:04 UTC 2007