Trace number 192098

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
buggy_2_5 2007-01-08SAT 9.71552 10.0507

General information on the benchmark

Namequeens/
queens-180.xml
MD5SUMc796a276961c748e1ef388ea91350f5c
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 benchmark4.35734
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables180
Number of constraints16110
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension0
Number of constraints which are defined in intension16110
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c solution file
c 
c 

SAT
2 4 6 80 96 5 179 8 138 160 156 149 7 73 77 72 9 101 153 135 147 76 10 141 68 87 125 67 71 11 66 84 90 128 59 63 70 12 51 65 91 64 75 85 58 74 13 92 94 81 124 132 93 88 134 23 14 78 140 42 98 148 52 100 86 129 22 15 172 54 176 167 41 180 46 154 174 150 178 16 155 170 136 53 48 25 177 165 137 55 151 157 17 50 121 164 168 102 108 166 139 171 109 83 169 24 18 27 79 107 116 131 142 99 122 61 112 104 115 143 82 19 33 97 69 144 26 57 127 62 114 28 105 110 89 95 29 20 130 56 118 120 103 49 161 60 158 163 159 30 126 145 133 162 21 173 34 146 43 3 175 152 35 37 40 106 113 111 45 38 119 123 31 44 36 39 32 47 117 1

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-192098-1168279946 -o ROOT/results/node1/solver-192098-1168279946 -C 1800 -M 900 /tmp/evaluation/192098-1168279946/solver /tmp/evaluation/192098-1168279946/unknown 1800 

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: 0.87 1.07 1.50 3/87 12431
/proc/meminfo: memFree=1323992/2055920 swapFree=4165612/4192956
[pid=12430] ppid=12428 vsize=18540 CPUtime=0
/proc/12430/stat : 12430 (runsolver) R 12428 12430 10317 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 176390697 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 259353275687 0 0 4096 24578 0 0 0 17 1 0 0
/proc/12430/statm: 4635 279 244 17 0 2626 0

[startup+0.102271 s]
/proc/loadavg: 0.87 1.07 1.50 3/87 12431
/proc/meminfo: memFree=1323992/2055920 swapFree=4165612/4192956
[pid=12430] ppid=12428 vsize=5352 CPUtime=0
/proc/12430/stat : 12430 (solver) S 12428 12430 10317 0 -1 4194304 354 334 0 0 0 0 0 0 22 0 1 0 176390697 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12430/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+0.510324 s]
/proc/loadavg: 0.87 1.07 1.50 3/87 12431
/proc/meminfo: memFree=1323992/2055920 swapFree=4165612/4192956
[pid=12430] ppid=12428 vsize=5352 CPUtime=0.29
/proc/12430/stat : 12430 (solver) S 12428 12430 10317 0 -1 4194304 376 2447 0 0 0 0 26 3 15 0 1 0 176390697 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12430/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5352

[startup+1.33142 s]
/proc/loadavg: 0.87 1.07 1.50 3/88 12443
/proc/meminfo: memFree=1284880/2055920 swapFree=4165612/4192956
[pid=12430] ppid=12428 vsize=5352 CPUtime=0.29
/proc/12430/stat : 12430 (solver) S 12428 12430 10317 0 -1 4194304 376 2447 0 0 0 0 26 3 15 0 1 0 176390697 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12430/statm: 1338 242 203 169 0 49 0
[pid=12443] ppid=12430 vsize=40460 CPUtime=0.99
/proc/12443/stat : 12443 (bordewijk) R 12430 12430 10317 0 -1 4194304 9620 0 0 0 90 9 0 0 25 0 1 0 176390728 41431040 9592 18446744073709551615 134512640 134912576 4294956768 18446744073709551615 6289183 0 0 4096 0 0 0 0 17 1 0 0
/proc/12443/statm: 10115 9592 204 97 0 9396 0
Current children cumulated CPU time (s) 1.28
Current children cumulated vsize (KiB) 45812

[startup+2.96862 s]
/proc/loadavg: 0.87 1.07 1.50 3/88 12443
/proc/meminfo: memFree=1243536/2055920 swapFree=4165612/4192956
[pid=12430] ppid=12428 vsize=5352 CPUtime=0.29
/proc/12430/stat : 12430 (solver) S 12428 12430 10317 0 -1 4194304 376 2447 0 0 0 0 26 3 15 0 1 0 176390697 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12430/statm: 1338 242 203 169 0 49 0
[pid=12443] ppid=12430 vsize=67660 CPUtime=2.62
/proc/12443/stat : 12443 (bordewijk) R 12430 12430 10317 0 -1 4194304 20317 0 0 0 239 23 0 0 25 0 1 0 176390728 69283840 16399 18446744073709551615 134512640 134912576 4294956768 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/12443/statm: 16915 16399 211 97 0 16196 0
Current children cumulated CPU time (s) 2.91
Current children cumulated vsize (KiB) 73012

[startup+6.261 s]
/proc/loadavg: 0.96 1.09 1.50 3/88 12444
/proc/meminfo: memFree=1272080/2055920 swapFree=4165612/4192956
[pid=12430] ppid=12428 vsize=5352 CPUtime=4.33
/proc/12430/stat : 12430 (solver) S 12428 12430 10317 0 -1 4194304 396 31016 0 0 0 0 291 142 16 0 1 0 176390697 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 259353273156 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12430/statm: 1338 242 203 169 0 49 0
[pid=12444] ppid=12430 vsize=38124 CPUtime=1.6
/proc/12444/stat : 12444 (standalone) R 12430 12430 10317 0 -1 4194304 9581 0 0 0 129 31 0 0 25 0 1 0 176391161 39038976 8929 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134554163 0 0 4096 0 0 0 0 17 1 0 0
/proc/12444/statm: 9531 8929 138 64 0 8846 0
Current children cumulated CPU time (s) 5.93
Current children cumulated vsize (KiB) 43476

Child status: 0
Real time (s): 10.0507
CPU time (s): 9.71552
CPU user time (s): 7.96779
CPU system time (s): 1.74773
CPU usage (%): 96.665
Max. virtual memory (cumulated for all children) (KiB): 104348

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.96779
system time used= 1.74773
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 41050
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= 367
involuntary context switches= 542

runsolver used 0.014997 s user time and 0.030995 s system time

The end

Launcher Data (download as text)

Begin job on node1 on Mon Jan  8 18:12:29 UTC 2007


IDJOB= 192098
IDBENCH= 3090
FILE ID= node1/192098-1168279946

PBS_JOBID= 3501569

Free space on /tmp= 66283 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-180.xml
COMMAND LINE= /tmp/evaluation/192098-1168279946/solver /tmp/evaluation/192098-1168279946/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-192098-1168279946 -o ROOT/results/node1/solver-192098-1168279946 -C 1800 -M 900  /tmp/evaluation/192098-1168279946/solver /tmp/evaluation/192098-1168279946/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  c796a276961c748e1ef388ea91350f5c

RANDOM SEED= 830988226

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:       1324472 kB
Buffers:         63088 kB
Cached:         555016 kB
SwapCached:       3620 kB
Active:         322460 kB
Inactive:       348076 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1324472 kB
SwapTotal:     4192956 kB
SwapFree:      4165612 kB
Dirty:           32744 kB
Writeback:           0 kB
Mapped:          63604 kB
Slab:            45632 kB
Committed_AS:  5475516 kB
PageTables:       2360 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= 66285 MiB



End job on node1 on Mon Jan  8 18:12:40 UTC 2007