Trace number 458174

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 24.2253 24.2327

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111227418.opb
MD5SUM1d0806e8d2a90a81262a0ea6810fc3cb
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 benchmark0.352945
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
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 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1171
Number of bits of the biggest sum of numbers11
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/458174-1178619656/instance-458174-1178619656.opb ......
24.19/24.22	c done parsing opb.
24.19/24.22	s SATISFIABLE
24.19/24.22	c Total Run Time					24.2173
24.19/24.22	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x11 -x110 -x111 -x112 -x113 -x114 x115 -x116 -x117 -x118
24.19/24.22	v -x119 -x12 -x120 -x121 -x122 -x123 -x124 x125 -x126 -x127 -x128 -x129 -x13 -x130 -x131 -x132 -x133 -x134 x135 -x136 -x137
24.19/24.22	v -x138 -x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x15 -x150 -x151 x152 -x153 -x154 -x155 -x156
24.19/24.22	v -x157 -x158 -x159 -x16 x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x18 -x19 x2 -x20 -x21 -x22 -x23 -x24
24.19/24.22	v x25 -x26 -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
24.19/24.22	v -x5 -x50 -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
24.19/24.22	v -x74 -x75 -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
24.19/24.22	v -x99

Verifier Data (download as text)

OK	0

Conversion Script Data (download as text)

/tmp/evaluation/458174-1178619656/instance-458174-1178619656.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/node41/watcher-458174-1178619656 -o ROOT/results/node41/solver-458174-1178619656 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458174-1178619656/instance-458174-1178619656.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: 0.96 0.97 0.99 3/77 24700
/proc/meminfo: memFree=1502920/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=1320 CPUtime=0
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 309877523 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 330 123 90 219 0 107 0

[startup+0.057378 s]
/proc/loadavg: 0.96 0.97 0.99 3/77 24700
/proc/meminfo: memFree=1502920/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=1456 CPUtime=0.05
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 174 0 0 0 5 0 0 0 18 0 1 0 309877523 1490944 156 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 364 156 90 219 0 141 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1456

[startup+0.10138 s]
/proc/loadavg: 0.96 0.97 0.99 3/77 24700
/proc/meminfo: memFree=1502920/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=1456 CPUtime=0.1
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 201 0 0 0 10 0 0 0 18 0 1 0 309877523 1490944 183 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 364 183 90 219 0 141 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1456

[startup+0.301397 s]
/proc/loadavg: 0.96 0.97 0.99 3/77 24700
/proc/meminfo: memFree=1502920/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=1868 CPUtime=0.29
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 311 0 0 0 29 0 0 0 20 0 1 0 309877523 1912832 293 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 467 293 90 219 0 244 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1868

[startup+0.701433 s]
/proc/loadavg: 0.96 0.97 0.99 3/77 24700
/proc/meminfo: memFree=1502920/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=3600 CPUtime=0.69
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 531 0 0 0 69 0 0 0 24 0 1 0 309877523 3686400 513 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 900 513 90 219 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.5015 s]
/proc/loadavg: 0.96 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1500672/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=6104 CPUtime=1.49
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 922 0 0 0 148 1 0 0 25 0 1 0 309877523 6250496 855 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 1526 855 90 219 0 1303 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6104

[startup+3.10164 s]
/proc/loadavg: 0.96 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1498880/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=6892 CPUtime=3.09
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 1513 0 0 0 307 2 0 0 25 0 1 0 309877523 7057408 1349 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544750 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 1723 1349 90 219 0 1500 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6892

[startup+6.30192 s]
/proc/loadavg: 0.96 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1495680/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=11412 CPUtime=6.29
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 2156 0 0 0 626 3 0 0 25 0 1 0 309877523 11685888 1992 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 2853 1992 90 219 0 2630 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11412

[startup+12.7015 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1492992/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=13176 CPUtime=12.69
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 2967 0 0 0 1264 5 0 0 25 0 1 0 309877523 13492224 2610 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 3294 2610 90 219 0 3071 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13176

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

[startup+19.101 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1490176/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=21952 CPUtime=19.09
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 3584 0 0 0 1902 7 0 0 25 0 1 0 309877523 22478848 3227 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 5488 3227 90 219 0 5265 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 21952

[startup+22.3013 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1489024/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=24088 CPUtime=22.29
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 4245 0 0 0 2221 8 0 0 25 0 1 0 309877523 24666112 3503 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 6022 3503 90 219 0 5799 0
Current children cumulated CPU time (s) 22.29
Current children cumulated vsize (KiB) 24088

[startup+23.1054 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1488832/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=24260 CPUtime=23.09
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 4280 0 0 0 2301 8 0 0 25 0 1 0 309877523 24842240 3538 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 6065 3538 90 219 0 5842 0
Current children cumulated CPU time (s) 23.09
Current children cumulated vsize (KiB) 24260

[startup+23.9015 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1488832/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=24260 CPUtime=23.89
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 4297 0 0 0 2380 9 0 0 25 0 1 0 309877523 24842240 3555 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134594427 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 6065 3555 90 219 0 5842 0
Current children cumulated CPU time (s) 23.89
Current children cumulated vsize (KiB) 24260

[startup+24.1015 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1488768/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=24260 CPUtime=24.09
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 4299 0 0 0 2400 9 0 0 25 0 1 0 309877523 24842240 3557 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544738 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 6065 3557 90 219 0 5842 0
Current children cumulated CPU time (s) 24.09
Current children cumulated vsize (KiB) 24260

[startup+24.2055 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 24701
/proc/meminfo: memFree=1488768/2055920 swapFree=4169412/4192956
[pid=24700] ppid=24698 vsize=24448 CPUtime=24.19
/proc/24700/stat : 24700 (PBS4_SAT07v2) R 24698 24700 23489 0 -1 4194304 4318 0 0 0 2410 9 0 0 25 0 1 0 309877523 25034752 3576 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24700/statm: 6112 3576 90 219 0 5889 0
Current children cumulated CPU time (s) 24.19
Current children cumulated vsize (KiB) 24448

Child status: 0
Real time (s): 24.2327
CPU time (s): 24.2253
CPU user time (s): 24.1313
CPU system time (s): 0.093985
CPU usage (%): 99.9696
Max. virtual memory (cumulated for all children) (KiB): 24448

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.1313
system time used= 0.093985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4337
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= 510

runsolver used 0.019996 second user time and 0.06299 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue May  8 10:20:56 UTC 2007

IDJOB= 458174
IDBENCH= 1251
IDSOLVER= 200
FILE ID= node41/458174-1178619656

PBS_JOBID= 5218237

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/wnqueen/normalized-t2001.13queen13.1111227418.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458174-1178619656/instance-458174-1178619656.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node41/convwatcher-458174-1178619656 -o ROOT/results/node41/conversion-458174-1178619656 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458174-1178619656/instance-458174-1178619656.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-458174-1178619656 -o ROOT/results/node41/solver-458174-1178619656 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458174-1178619656/instance-458174-1178619656.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  1d0806e8d2a90a81262a0ea6810fc3cb

RANDOM SEED= 488973473

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.232
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		: 3000.232
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:       1503328 kB
Buffers:         40456 kB
Cached:         387320 kB
SwapCached:       3072 kB
Active:         142612 kB
Inactive:       309592 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1503328 kB
SwapTotal:     4192956 kB
SwapFree:      4169412 kB
Dirty:            2276 kB
Writeback:           0 kB
Mapped:          31936 kB
Slab:            85708 kB
Committed_AS:  8578056 kB
PageTables:       2008 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 node41 on Tue May  8 10:21:21 UTC 2007