Trace number 310846

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
MiraXT v1UNSAT 1.06184 1.06391

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1240130681-11-UNSAT.cnf
MD5SUM76f071535d514b4b4cd5d986eb064c1d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.396938
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Starting MiraXTv1...
0.99/1.06	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node13/watcher-310846-1178872583 -o ROOT/results/node13/solver-310846-1178872583 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/310846-1178872583/MiraXTv1_dyn /tmp/evaluation/310846-1178872583/instance-310846-1178872583.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 0.85 0.95 0.99 3/77 16070
/proc/meminfo: memFree=1812384/2055920 swapFree=4159364/4192956
[pid=16070] ppid=16068 vsize=3920 CPUtime=0
/proc/16070/stat : 16070 (MiraXTv1_dyn) R 16068 16070 15520 0 -1 4194304 312 0 0 0 0 0 0 0 18 0 1 0 335176108 4014080 287 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 12317645 0 0 4096 0 0 0 0 17 1 0 0
/proc/16070/statm: 980 293 205 20 0 338 0

[startup+0.066826 s]
/proc/loadavg: 0.85 0.95 0.99 3/77 16070
/proc/meminfo: memFree=1812384/2055920 swapFree=4159364/4192956
[pid=16070] ppid=16068 vsize=5148 CPUtime=0.06
/proc/16070/stat : 16070 (MiraXTv1_dyn) S 16068 16070 15520 0 -1 4194304 554 0 0 0 6 0 0 0 18 0 2 0 335176108 5271552 529 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/16070/statm: 1287 529 218 20 0 645 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5148

[startup+0.101833 s]
/proc/loadavg: 0.85 0.95 0.99 3/77 16070
/proc/meminfo: memFree=1812384/2055920 swapFree=4159364/4192956
[pid=16070] ppid=16068 vsize=5280 CPUtime=0.09
/proc/16070/stat : 16070 (MiraXTv1_dyn) S 16068 16070 15520 0 -1 4194304 569 0 0 0 9 0 0 0 18 0 2 0 335176108 5406720 544 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/16070/statm: 1320 544 218 20 0 678 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5280

[startup+0.301875 s]
/proc/loadavg: 0.85 0.95 0.99 3/77 16070
/proc/meminfo: memFree=1812384/2055920 swapFree=4159364/4192956
[pid=16070] ppid=16068 vsize=5676 CPUtime=0.29
/proc/16070/stat : 16070 (MiraXTv1_dyn) S 16068 16070 15520 0 -1 4194304 687 0 0 0 29 0 0 0 18 0 2 0 335176108 5812224 662 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/16070/statm: 1419 662 218 20 0 777 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5676

[startup+0.701961 s]
/proc/loadavg: 0.85 0.95 0.99 3/77 16070
/proc/meminfo: memFree=1812384/2055920 swapFree=4159364/4192956
[pid=16070] ppid=16068 vsize=7176 CPUtime=0.69
/proc/16070/stat : 16070 (MiraXTv1_dyn) S 16068 16070 15520 0 -1 4194304 918 0 0 0 69 0 0 0 18 0 2 0 335176108 7348224 893 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/16070/statm: 1794 893 218 20 0 1152 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7176

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

[startup+0.902003 s]
/proc/loadavg: 0.85 0.95 0.99 3/77 16070
/proc/meminfo: memFree=1812384/2055920 swapFree=4159364/4192956
[pid=16070] ppid=16068 vsize=7488 CPUtime=0.89
/proc/16070/stat : 16070 (MiraXTv1_dyn) S 16068 16070 15520 0 -1 4194304 1002 0 0 0 89 0 0 0 18 0 2 0 335176108 7667712 977 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/16070/statm: 1872 978 218 20 0 1230 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 7488

[startup+1.00203 s]
/proc/loadavg: 0.85 0.95 0.99 2/79 16072
/proc/meminfo: memFree=1809040/2055920 swapFree=4159364/4192956
[pid=16070] ppid=16068 vsize=7752 CPUtime=0.99
/proc/16070/stat : 16070 (MiraXTv1_dyn) S 16068 16070 15520 0 -1 4194304 1058 0 0 0 99 0 0 0 18 0 2 0 335176108 7938048 1033 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/16070/statm: 1938 1033 218 20 0 1296 0
[pid=16070/tid=16072] ppid=16068 vsize=7752 CPUtime=0.98
/proc/16070/task/16072/stat : 16072 (MiraXTv1_dyn) R 16068 16070 15520 0 -1 4194368 637 0 0 0 98 0 0 0 25 0 2 0 335176110 7938048 1033 18446744073709551615 134512640 134597700 4294956656 18446744073709551615 134526286 0 0 4096 0 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 7752

Child status: 20
Real time (s): 1.06391
CPU time (s): 1.06184
CPU user time (s): 1.05184
CPU system time (s): 0.009998
CPU usage (%): 99.8052
Max. virtual memory (cumulated for all children) (KiB): 7752

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.05184
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1097
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= 2

runsolver used 0.000999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Fri May 11 08:36:23 UTC 2007

IDJOB= 310846
IDBENCH= 20297
IDSOLVER= 130
FILE ID= node13/310846-1178872583

PBS_JOBID= 5251045

Free space on /tmp= 66561 MiB

SOLVER NAME= MiraXT v1
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1240130681-11-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310846-1178872583/MiraXTv1_dyn /tmp/evaluation/310846-1178872583/instance-310846-1178872583.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-310846-1178872583 -o ROOT/results/node13/solver-310846-1178872583 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/310846-1178872583/MiraXTv1_dyn /tmp/evaluation/310846-1178872583/instance-310846-1178872583.cnf            

META MD5SUM SOLVER= 2ad149617ed8d249d89b067eb44c33da
MD5SUM BENCH=  76f071535d514b4b4cd5d986eb064c1d

RANDOM SEED= 759053867

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.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		: 3000.259
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:       1812600 kB
Buffers:         39644 kB
Cached:         117032 kB
SwapCached:      12848 kB
Active:         118232 kB
Inactive:        61704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1812600 kB
SwapTotal:     4192956 kB
SwapFree:      4159364 kB
Dirty:            4120 kB
Writeback:           0 kB
Mapped:          30100 kB
Slab:            48836 kB
Committed_AS:  9794116 kB
PageTables:       1872 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= 66561 MiB

End job on node13 on Fri May 11 08:36:24 UTC 2007