Trace number 458184

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 23.8084 23.8157

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111226284.opb
MD5SUMb0b62e5c28712e6ca2742fcfc1914d40
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 benchmark0.010997
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 1216
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/458184-1178619702/instance-458184-1178619702.opb ......
23.79/23.81	c done parsing opb.
23.79/23.81	s SATISFIABLE
23.79/23.81	c Total Run Time					23.8014
23.79/23.81	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 x109 x11 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118
23.79/23.81	v -x119 -x12 -x120 -x121 -x122 -x123 x124 -x125 -x126 -x127 -x128 -x129 -x13 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137
23.79/23.81	v -x138 x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 x146 -x147 -x148 -x149 x15 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157
23.79/23.81	v -x158 -x159 -x16 -x160 -x161 -x162 -x163 x164 -x165 -x166 -x167 -x168 -x169 -x17 -x18 -x19 -x2 -x20 -x21 -x22 -x23 -x24 -x25
23.79/23.81	v -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 -x5
23.79/23.81	v -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
23.79/23.81	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
23.79/23.81	v -x99

Verifier Data (download as text)

OK	0

Conversion Script Data (download as text)

/tmp/evaluation/458184-1178619702/instance-458184-1178619702.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/node50/watcher-458184-1178619702 -o ROOT/results/node50/solver-458184-1178619702 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458184-1178619702/instance-458184-1178619702.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: 0.97 0.97 0.99 3/64 4340
/proc/meminfo: memFree=1808608/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=1320 CPUtime=0
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 141 0 0 0 0 0 0 0 18 0 1 0 216815356 1351680 123 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544738 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 330 123 90 219 0 107 0

[startup+0.0773979 s]
/proc/loadavg: 0.97 0.97 0.99 3/64 4340
/proc/meminfo: memFree=1808608/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=1452 CPUtime=0.07
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 178 0 0 0 7 0 0 0 18 0 1 0 216815356 1486848 160 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 363 160 90 219 0 140 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1452

[startup+0.1024 s]
/proc/loadavg: 0.97 0.97 0.99 3/64 4340
/proc/meminfo: memFree=1808608/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=1452 CPUtime=0.09
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 189 0 0 0 9 0 0 0 18 0 1 0 216815356 1486848 171 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 363 171 90 219 0 140 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1452

[startup+0.301417 s]
/proc/loadavg: 0.97 0.97 0.99 3/64 4340
/proc/meminfo: memFree=1808608/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=1872 CPUtime=0.29
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 306 0 0 0 29 0 0 0 19 0 1 0 216815356 1916928 288 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 468 288 90 219 0 245 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1872

[startup+0.702452 s]
/proc/loadavg: 0.97 0.97 0.99 3/64 4340
/proc/meminfo: memFree=1808608/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=3604 CPUtime=0.69
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 494 0 0 0 69 0 0 0 23 0 1 0 216815356 3690496 476 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 901 476 90 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.50152 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1806424/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=4060 CPUtime=1.49
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 857 0 0 0 148 1 0 0 25 0 1 0 216815356 4157440 790 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 1015 790 90 219 0 792 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4060

[startup+3.10166 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1804696/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=6892 CPUtime=3.09
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 1401 0 0 0 307 2 0 0 25 0 1 0 216815356 7057408 1237 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 1723 1237 90 219 0 1500 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6892

[startup+6.30194 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1802200/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=11536 CPUtime=6.29
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 1999 0 0 0 625 4 0 0 25 0 1 0 216815356 11812864 1835 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 2884 1835 90 219 0 2661 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11536

[startup+12.7015 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1798808/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=13304 CPUtime=12.69
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 2914 0 0 0 1262 7 0 0 25 0 1 0 216815356 13623296 2557 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 3326 2557 90 219 0 3103 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 13304

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

[startup+19.1011 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1797272/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=15508 CPUtime=19.08
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 3583 0 0 0 1899 9 0 0 25 0 1 0 216815356 15880192 2841 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 3877 2841 90 219 0 3654 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15508

[startup+22.3014 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1796824/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=15832 CPUtime=22.28
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 3692 0 0 0 2218 10 0 0 25 0 1 0 216815356 16211968 2950 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 3958 2950 90 219 0 3735 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 15832

[startup+23.1054 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1796696/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=15832 CPUtime=23.08
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 3719 0 0 0 2298 10 0 0 25 0 1 0 216815356 16211968 2977 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134557040 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 3958 2977 90 219 0 3735 0
Current children cumulated CPU time (s) 23.08
Current children cumulated vsize (KiB) 15832

[startup+23.5015 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1796696/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=15832 CPUtime=23.49
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 3726 0 0 0 2338 11 0 0 25 0 1 0 216815356 16211968 2984 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134544702 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 3958 2984 90 219 0 3735 0
Current children cumulated CPU time (s) 23.49
Current children cumulated vsize (KiB) 15832

[startup+23.7015 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1796696/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=16016 CPUtime=23.69
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 3749 0 0 0 2358 11 0 0 25 0 1 0 216815356 16400384 3007 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 4004 3007 90 219 0 3781 0
Current children cumulated CPU time (s) 23.69
Current children cumulated vsize (KiB) 16016

[startup+23.8015 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 4341
/proc/meminfo: memFree=1796696/2055920 swapFree=4183852/4192956
[pid=4340] ppid=4338 vsize=16016 CPUtime=23.79
/proc/4340/stat : 4340 (PBS4_SAT07v2) R 4338 4340 2663 0 -1 4194304 3750 0 0 0 2368 11 0 0 25 0 1 0 216815356 16400384 3008 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/4340/statm: 4004 3008 90 219 0 3781 0
Current children cumulated CPU time (s) 23.79
Current children cumulated vsize (KiB) 16016

Child status: 0
Real time (s): 23.8157
CPU time (s): 23.8084
CPU user time (s): 23.6944
CPU system time (s): 0.113982
CPU usage (%): 99.9693
Max. virtual memory (cumulated for all children) (KiB): 16016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.6944
system time used= 0.113982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3768
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= 47

runsolver used 0.022996 second user time and 0.047992 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Tue May  8 10:21:42 UTC 2007

IDJOB= 458184
IDBENCH= 1261
IDSOLVER= 200
FILE ID= node50/458184-1178619702

PBS_JOBID= 5218236

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-t2001.13queen13.1111226284.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458184-1178619702/instance-458184-1178619702.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node50/convwatcher-458184-1178619702 -o ROOT/results/node50/conversion-458184-1178619702 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458184-1178619702/instance-458184-1178619702.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-458184-1178619702 -o ROOT/results/node50/solver-458184-1178619702 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458184-1178619702/instance-458184-1178619702.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  b0b62e5c28712e6ca2742fcfc1914d40

RANDOM SEED= 902526252

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node50.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:       1809016 kB
Buffers:         18624 kB
Cached:         134472 kB
SwapCached:       3032 kB
Active:          34496 kB
Inactive:       128908 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1809016 kB
SwapTotal:     4192956 kB
SwapFree:      4183852 kB
Dirty:            2428 kB
Writeback:           0 kB
Mapped:          16452 kB
Slab:            69504 kB
Committed_AS:  4939120 kB
PageTables:       1460 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 node50 on Tue May  8 10:22:06 UTC 2007