Trace number 359021

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 5.12722 5.12861

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110974553.opb
MD5SUMa8a51c2e735c1a05850a59dcf05a69f7
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 benchmark0.014996
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 1165
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/359021-1176919793/instance-359021-1176919793.opb ......
5.09/5.12	c done parsing opb.
5.09/5.12	s SATISFIABLE
5.09/5.12	c Total Run Time					5.12022
5.09/5.12	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 x105 -x106 -x107 -x108 -x109 -x11 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118
5.09/5.12	v -x119 -x12 x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x13 -x130 -x131 -x132 -x133 -x134 -x135 x136 -x137
5.09/5.12	v -x138 -x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x15 -x150 -x151 -x152 -x153 x154 -x155 -x156
5.09/5.12	v -x157 -x158 -x159 -x16 -x160 -x161 -x162 x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x18 -x19 -x2 -x20 -x21 x22 -x23 -x24
5.09/5.12	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
5.09/5.12	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
5.09/5.12	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
5.09/5.12	v -x98 x99

Verifier Data (download as text)

OK	0

Conversion Script Data (download as text)

/tmp/evaluation/359021-1176919793/instance-359021-1176919793.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/node55/watcher-359021-1176919793 -o ROOT/results/node55/solver-359021-1176919793 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/359021-1176919793/PBS4 /tmp/evaluation/359021-1176919793/instance-359021-1176919793.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: 0.91 0.94 0.98 3/64 861
/proc/meminfo: memFree=1643172/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=1320 CPUtime=0
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 139889339 1351680 125 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 330 125 92 219 0 107 0

[startup+0.042229 s]
/proc/loadavg: 0.91 0.94 0.98 3/64 861
/proc/meminfo: memFree=1643172/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=1456 CPUtime=0.04
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 177 0 0 0 4 0 0 0 18 0 1 0 139889339 1490944 159 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 364 159 92 219 0 141 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1456

[startup+0.101234 s]
/proc/loadavg: 0.91 0.94 0.98 3/64 861
/proc/meminfo: memFree=1643172/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=1456 CPUtime=0.09
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 217 0 0 0 9 0 0 0 18 0 1 0 139889339 1490944 199 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 364 199 92 219 0 141 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1456

[startup+0.301252 s]
/proc/loadavg: 0.91 0.94 0.98 3/64 861
/proc/meminfo: memFree=1643172/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=2380 CPUtime=0.29
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 358 0 0 0 29 0 0 0 19 0 1 0 139889339 2437120 340 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 595 340 93 219 0 372 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2380

[startup+0.70129 s]
/proc/loadavg: 0.91 0.94 0.98 3/64 861
/proc/meminfo: memFree=1643172/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=3600 CPUtime=0.69
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 592 0 0 0 69 0 0 0 23 0 1 0 139889339 3686400 574 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 900 574 93 219 0 677 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3600

[startup+1.50236 s]
/proc/loadavg: 0.92 0.94 0.98 2/65 862
/proc/meminfo: memFree=1640732/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=6112 CPUtime=1.49
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 973 0 0 0 148 1 0 0 25 0 1 0 139889339 6258688 906 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 1528 906 94 219 0 1305 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6112

[startup+3.10152 s]
/proc/loadavg: 0.92 0.94 0.98 2/65 862
/proc/meminfo: memFree=1639068/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=6760 CPUtime=3.09
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 1502 0 0 0 307 2 0 0 25 0 1 0 139889339 6922240 1338 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134547106 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 1690 1338 94 219 0 1467 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6760

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

[startup+3.90159 s]
/proc/loadavg: 0.92 0.94 0.98 2/65 862
/proc/meminfo: memFree=1637788/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=7024 CPUtime=3.9
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 1610 0 0 0 387 3 0 0 25 0 1 0 139889339 7192576 1446 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 1756 1446 94 219 0 1533 0
Current children cumulated CPU time (s) 3.9
Current children cumulated vsize (KiB) 7024

[startup+4.70167 s]
/proc/loadavg: 0.92 0.94 0.98 2/65 862
/proc/meminfo: memFree=1637340/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=7024 CPUtime=4.69
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 1681 0 0 0 466 3 0 0 25 0 1 0 139889339 7192576 1517 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 1756 1517 94 219 0 1533 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 7024

[startup+5.10171 s]
/proc/loadavg: 0.92 0.94 0.98 2/65 862
/proc/meminfo: memFree=1637340/2055920 swapFree=4184496/4192956
[pid=861] ppid=859 vsize=7168 CPUtime=5.09
/proc/861/stat : 861 (PBS4) R 859 861 32028 0 -1 4194304 1695 0 0 0 506 3 0 0 25 0 1 0 139889339 7340032 1531 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/861/statm: 1792 1531 94 219 0 1569 0
Current children cumulated CPU time (s) 5.09
Current children cumulated vsize (KiB) 7168

Child status: 0
Real time (s): 5.12861
CPU time (s): 5.12722
CPU user time (s): 5.09223
CPU system time (s): 0.034994
CPU usage (%): 99.9729
Max. virtual memory (cumulated for all children) (KiB): 7168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.09223
system time used= 0.034994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1712
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= 5

runsolver used 0.005999 second user time and 0.015997 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Wed Apr 18 18:09:53 UTC 2007

IDJOB= 359021
IDBENCH= 1256
IDSOLVER= 157
FILE ID= node55/359021-1176919793

PBS_JOBID= 4595248

Free space on /tmp= 66354 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110974553.opb
COMMAND LINE= /tmp/evaluation/359021-1176919793/PBS4 /tmp/evaluation/359021-1176919793/instance-359021-1176919793.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node55/convwatcher-359021-1176919793 -o ROOT/results/node55/conversion-359021-1176919793 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/359021-1176919793/instance-359021-1176919793.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-359021-1176919793 -o ROOT/results/node55/solver-359021-1176919793 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/359021-1176919793/PBS4 /tmp/evaluation/359021-1176919793/instance-359021-1176919793.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  a8a51c2e735c1a05850a59dcf05a69f7

RANDOM SEED= 499835757

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.216
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		: 3000.216
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:       1643644 kB
Buffers:         16120 kB
Cached:         315836 kB
SwapCached:       2196 kB
Active:          67380 kB
Inactive:       274632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1643644 kB
SwapTotal:     4192956 kB
SwapFree:      4184496 kB
Dirty:            1148 kB
Writeback:           0 kB
Mapped:          16496 kB
Slab:            56364 kB
Committed_AS:  1082868 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= 66354 MiB

End job on node55 on Wed Apr 18 18:09:58 UTC 2007