Trace number 233343

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 9.32958 9.42871

General information on the benchmark

Nametaillard/os-taillard-15/
os-taillard-15-105-3.xml
MD5SUM69b5565aeb2925a1d5ec2e6bae551819
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 benchmark0.280956
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables225
Number of constraints3150
Maximum constraint arity2
Maximum domain size993
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3150
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c solution file
c 
c 

SAT
235 488 52 702 185 873 403 479 321 95 527 790 0 513 665 331 604 97 491 527 944 658 0 707 752 182 791 270 386 689 513 555 169 385 634 692 746 87 842 296 511 239 445 0 251 121 251 46 644 464 547 689 0 71 369 413 750 898 332 166 744 0 175 387 644 550 146 55 836 496 209 20 257 442 105 787 604 468 96 555 0 382 209 694 819 235 176 253 309 803 257 340 71 671 820 0 496 707 436 579 96 332 741 161 413 866 636 235 159 87 48 270 92 687 360 221 386 787 70 0 873 622 641 0 176 510 166 97 815 745 599 476 304 397 251 866 592 832 251 72 161 510 746 52 427 340 791 0 671 894 13 304 636 741 491 112 381 820 899 209 864 665 765 454 547 92 547 209 687 292 723 588 319 864 0 169 464 185 641 397 97 262 574 147 0 351 239 403 859 752 832 479 511 717 651 63 449 898 112 921 386 666 206 579 0 767 296 782 491 820 447 360 331 550 899 479 666 354 253 765 382 717 96 0 175

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/node45/watcher-233343-1168325508 -o ROOT/results/node45/solver-233343-1168325508 -C 1800 -M 900 /tmp/evaluation/233343-1168325508/solver /tmp/evaluation/233343-1168325508/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: 2.47 2.29 1.89 4/73 20044
/proc/meminfo: memFree=1428480/2055920 swapFree=4184048/4192956
[pid=20043] ppid=20041 vsize=5212 CPUtime=0
/proc/20043/stat : 20043 (solver) R 20041 20043 19145 0 -1 4194304 104 0 0 0 0 0 0 0 20 0 1 0 180949975 5337088 77 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 258938931552 0 0 4096 0 0 0 0 17 1 0 0
/proc/20043/statm: 1303 77 60 169 0 14 0

[startup+0.111456 s]
/proc/loadavg: 2.47 2.29 1.89 4/73 20044
/proc/meminfo: memFree=1428480/2055920 swapFree=4184048/4192956
[pid=20043] ppid=20041 vsize=5352 CPUtime=0.06
/proc/20043/stat : 20043 (solver) S 20041 20043 19145 0 -1 4194304 376 2285 0 0 0 0 4 2 16 0 1 0 180949975 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 258939085636 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/20043/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5352

[startup+0.521533 s]
/proc/loadavg: 2.47 2.29 1.89 4/73 20044
/proc/meminfo: memFree=1428480/2055920 swapFree=4184048/4192956
[pid=20043] ppid=20041 vsize=5352 CPUtime=0.06
/proc/20043/stat : 20043 (solver) S 20041 20043 19145 0 -1 4194304 376 2285 0 0 0 0 4 2 16 0 1 0 180949975 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 258939085636 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/20043/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5352

[startup+1.34267 s]
/proc/loadavg: 2.47 2.29 1.89 3/74 20056
/proc/meminfo: memFree=1368312/2055920 swapFree=4184048/4192956
[pid=20043] ppid=20041 vsize=5352 CPUtime=0.06
/proc/20043/stat : 20043 (solver) S 20041 20043 19145 0 -1 4194304 376 2285 0 0 0 0 4 2 16 0 1 0 180949975 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 258939085636 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/20043/statm: 1338 242 203 169 0 49 0
[pid=20056] ppid=20043 vsize=56584 CPUtime=1.24
/proc/20056/stat : 20056 (bordewijk) R 20043 20043 19145 0 -1 4194304 14566 0 0 0 84 40 0 0 25 0 1 0 180949983 57942016 13412 18446744073709551615 134512640 134912576 4294956768 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/20056/statm: 14146 13412 217 97 0 13427 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 61936

[startup+2.98098 s]
/proc/loadavg: 2.47 2.29 1.89 3/74 20056
/proc/meminfo: memFree=1367032/2055920 swapFree=4184048/4192956
[pid=20043] ppid=20041 vsize=5352 CPUtime=2.76
/proc/20043/stat : 20043 (solver) S 20041 20043 19145 0 -1 4194304 396 16853 0 0 0 0 97 179 16 0 1 0 180949975 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 258939085636 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/20043/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 2.76
Current children cumulated vsize (KiB) 5352

[startup+6.27058 s]
/proc/loadavg: 2.44 2.28 1.89 3/74 20057
/proc/meminfo: memFree=1386488/2055920 swapFree=4184048/4192956
[pid=20043] ppid=20041 vsize=5352 CPUtime=2.76
/proc/20043/stat : 20043 (solver) S 20041 20043 19145 0 -1 4194304 396 16853 0 0 0 0 97 179 16 0 1 0 180949975 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 258939085636 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/20043/statm: 1338 242 203 169 0 49 0
[pid=20057] ppid=20043 vsize=39036 CPUtime=3.41
/proc/20057/stat : 20057 (standalone) R 20043 20043 19145 0 -1 4194304 9076 0 0 0 298 43 0 0 25 0 1 0 180950257 39972864 8995 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4125690067 0 0 4096 0 0 0 0 17 1 0 0
/proc/20057/statm: 9759 8995 137 64 0 9074 0
Current children cumulated CPU time (s) 6.17
Current children cumulated vsize (KiB) 44388

Child status: 0
Real time (s): 9.42871
CPU time (s): 9.32958
CPU user time (s): 7.08192
CPU system time (s): 2.24766
CPU usage (%): 98.9487
Max. virtual memory (cumulated for all children) (KiB): 61936

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.08192
system time used= 2.24766
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 26527
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= 146
involuntary context switches= 264

runsolver used 0.020996 s user time and 0.027995 s system time

The end

Launcher Data (download as text)

Begin job on node45 on Tue Jan  9 06:51:50 UTC 2007


IDJOB= 233343
IDBENCH= 6599
FILE ID= node45/233343-1168325508

PBS_JOBID= 3502971

Free space on /tmp= 66541 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-15/os-taillard-15-105-3.xml
COMMAND LINE= /tmp/evaluation/233343-1168325508/solver /tmp/evaluation/233343-1168325508/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node45/watcher-233343-1168325508 -o ROOT/results/node45/solver-233343-1168325508 -C 1800 -M 900  /tmp/evaluation/233343-1168325508/solver /tmp/evaluation/233343-1168325508/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  69b5565aeb2925a1d5ec2e6bae551819

RANDOM SEED= 955744523

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		: 3000.259
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		: 3000.259
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:       1428896 kB
Buffers:         69236 kB
Cached:         452556 kB
SwapCached:       3168 kB
Active:         214576 kB
Inactive:       352780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1428896 kB
SwapTotal:     4192956 kB
SwapFree:      4184048 kB
Dirty:           11184 kB
Writeback:           0 kB
Mapped:          54588 kB
Slab:            45084 kB
Committed_AS:  3768740 kB
PageTables:       1768 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= 66535 MiB



End job on node45 on Tue Jan  9 06:52:00 UTC 2007