Trace number 192019

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
Mistral 2006-12-04SAT 2.26565 2.27023

General information on the benchmark

Namequeens/
queens-200.xml
MD5SUMbc9638d33bc2eb3542de683de70ee98a
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.26565
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables200
Number of constraints19900
Maximum constraint arity2
Maximum domain size200
Number of constraints which are defined in extension0
Number of constraints which are defined in intension19900
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	c 	variables.............    0
0.01	c 	predicates............    0
0.01	c 	constraints........... 1.35
1.37	c Allocating memory
1.37	c 
1.37	c time limit = -1
1.37	c heuristic = dom/wdeg
1.37	c restart policy = No restart
1.37	c 
1.37	c Solving
1.37	c
2.24	s SATISFIABLE
2.24	v 1 3 5 108 92 4 87 7 95 88 78 75 6 71 73 76 8 90 98 70 85 105 9 77 80 94 69 199 64 10 68 200 189 194 144 109 198 11 63 106 117 195 82 196 66 72 12 188 100 91 192 74 84 79 104 51 13 86 89 43 183 81 190 187 173 182 24 14 186 180 67 177 49 62 44 47 169 155 168 15 135 118 179 175 102 48 181 191 132 40 65 193 16 164 59 170 178 83 53 42 153 197 112 119 176 96 17 111 121 166 93 157 2 146 174 154 101 52 167 97 61 18 184 158 37 172 145 139 136 39 110 99 138 163 149 142 150 19 162 137 60 114 151 23 161 26 58 55 115 27 171 185 54 141 20 107 116 103 134 28 113 156 50 25 143 124 159 123 41 130 38 140 21 122 128 165 31 127 160 32 30 152 126 147 35 133 148 129 125 120 33 22 131 45 34 56 29 36 46 57
2.24	d          SAT        18 BTS      0.85 s

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node1/watcher-192019-1168096506 -o ROOT/results/node1/solver-192019-1168096506 -C 1800 -M 900 /tmp/evaluation/192019-1168096506/mistral/bin/solver /tmp/evaluation/192019-1168096506/unknown.xml -v 1 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 0.19 0.85 1.35 4/81 25035
/proc/meminfo: memFree=1211168/2055920 swapFree=4165584/4192956
[pid=25034] ppid=25032 vsize=6792 CPUtime=0
/proc/25034/stat : 25034 (solver) R 25032 25034 24336 0 -1 4194304 400 0 0 0 0 0 0 0 18 0 1 0 158047292 6955008 380 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 5798776 0 0 4096 0 0 0 0 17 1 0 0
/proc/25034/statm: 1698 380 356 92 0 30 0

[startup+0.102815 s]
/proc/loadavg: 0.19 0.85 1.35 4/81 25035
/proc/meminfo: memFree=1211168/2055920 swapFree=4165584/4192956
[pid=25034] ppid=25032 vsize=7444 CPUtime=0.09
/proc/25034/stat : 25034 (solver) R 25032 25034 24336 0 -1 4194304 949 0 0 0 9 0 0 0 18 0 1 0 158047292 7622656 917 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 6264443 0 0 4096 0 0 0 0 17 1 0 0
/proc/25034/statm: 1861 917 706 92 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7444

[startup+0.510861 s]
/proc/loadavg: 0.19 0.85 1.35 4/81 25035
/proc/meminfo: memFree=1211168/2055920 swapFree=4165584/4192956
[pid=25034] ppid=25032 vsize=9176 CPUtime=0.5
/proc/25034/stat : 25034 (solver) R 25032 25034 24336 0 -1 4194304 1367 0 0 0 50 0 0 0 22 0 1 0 158047292 9396224 1335 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4159376408 0 0 4096 0 0 0 0 17 1 0 0
/proc/25034/statm: 2294 1335 706 92 0 638 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9176

[startup+1.33096 s]
/proc/loadavg: 0.19 0.85 1.35 2/81 25035
/proc/meminfo: memFree=1206240/2055920 swapFree=4165584/4192956
[pid=25034] ppid=25032 vsize=12556 CPUtime=1.31
/proc/25034/stat : 25034 (solver) R 25032 25034 24336 0 -1 4194304 2219 0 0 0 131 0 0 0 25 0 1 0 158047292 12857344 2154 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134575819 0 0 4096 0 0 0 0 17 1 0 0
/proc/25034/statm: 3139 2154 706 92 0 1483 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 12556

Child status: 0
Real time (s): 2.27023
CPU time (s): 2.26565
CPU user time (s): 2.25166
CPU system time (s): 0.013997
CPU usage (%): 99.7984
Max. virtual memory (cumulated for all children) (KiB): 14828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.25166
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2791
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= 13
involuntary context switches= 49

runsolver used 0.006998 s user time and 0.010998 s system time

The end

Launcher Data (download as text)

Begin job on node1 on Sat Jan  6 15:15:10 UTC 2007


IDJOB= 192019
IDBENCH= 3085
FILE ID= node1/192019-1168096506

PBS_JOBID= 3476488

Free space on /tmp= 66300 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-200.xml
COMMAND LINE= /tmp/evaluation/192019-1168096506/mistral/bin/solver /tmp/evaluation/192019-1168096506/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-192019-1168096506 -o ROOT/results/node1/solver-192019-1168096506 -C 1800 -M 900  /tmp/evaluation/192019-1168096506/mistral/bin/solver /tmp/evaluation/192019-1168096506/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  bc9638d33bc2eb3542de683de70ee98a

RANDOM SEED= 763702862

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.234
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		: 3000.234
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:       1211760 kB
Buffers:         68012 kB
Cached:         639468 kB
SwapCached:       3664 kB
Active:         241272 kB
Inactive:       505180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1211760 kB
SwapTotal:     4192956 kB
SwapFree:      4165584 kB
Dirty:            5624 kB
Writeback:           0 kB
Mapped:          48864 kB
Slab:            82796 kB
Committed_AS:  4266592 kB
PageTables:       2172 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= 66300 MiB



End job on node1 on Sat Jan  6 15:15:22 UTC 2007