Trace number 370090

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
CMUSAT 2007-02-08UNSAT 2.01669 2.01816

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
MD5SUM922dc9f32281b0c4efd640c112a641b6
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.71574
Satisfiable
(Un)Satisfiability was proved
Number of variables864
Number of clauses32700
Sum of the clauses size256765
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228
Number of clauses of size 3180
Number of clauses of size 4348
Number of clauses of size 51746
Number of clauses of size over 530396

Solver Data (download as text)

0.00/0.00	c Pre-processing provided 0 assignments
0.00/0.00	c |  Number of variables:  864                                                  |
0.06/0.07	c |  Number of clauses:    32700                                                |
1.99/2.01	c |  Parsing time:         0.07         sec                                       |
1.99/2.01	c #varS 864 #clauseS 38498
1.99/2.01	c REMAP internally 1
1.99/2.01	c 
1.99/2.01	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node39/watcher-370090-1177551938 -o ROOT/results/node39/solver-370090-1177551938 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370090-1177551938/cmusat /tmp/evaluation/370090-1177551938/instance-370090-1177551938.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.78 0.91 0.89 3/77 10868
/proc/meminfo: memFree=1702520/2055920 swapFree=4159384/4192956
[pid=10868] ppid=10866 vsize=2316 CPUtime=0
/proc/10868/stat : 10868 (cmusat) R 10866 10868 8942 0 -1 4194304 431 0 0 0 0 0 0 0 18 0 1 0 203105907 2371584 415 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/10868/statm: 579 415 96 243 0 333 0

[startup+0.0672731 s]
/proc/loadavg: 0.78 0.91 0.89 3/77 10868
/proc/meminfo: memFree=1702520/2055920 swapFree=4159384/4192956
[pid=10868] ppid=10866 vsize=5400 CPUtime=0.06
/proc/10868/stat : 10868 (cmusat) R 10866 10868 8942 0 -1 4194304 1158 0 0 0 6 0 0 0 18 0 1 0 203105907 5529600 1142 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135145085 0 0 4096 35 0 0 0 17 1 0 0
/proc/10868/statm: 1350 1142 96 243 0 1104 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5400

[startup+0.101279 s]
/proc/loadavg: 0.78 0.91 0.89 3/77 10868
/proc/meminfo: memFree=1702520/2055920 swapFree=4159384/4192956
[pid=10868] ppid=10866 vsize=5660 CPUtime=0.09
/proc/10868/stat : 10868 (cmusat) R 10866 10868 8942 0 -1 4194304 1247 0 0 0 9 0 0 0 18 0 1 0 203105907 5795840 1231 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134530502 0 0 4096 35 0 0 0 17 1 0 0
/proc/10868/statm: 1415 1231 107 243 0 1169 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5660

[startup+0.301312 s]
/proc/loadavg: 0.78 0.91 0.89 3/77 10868
/proc/meminfo: memFree=1702520/2055920 swapFree=4159384/4192956
[pid=10868] ppid=10866 vsize=5660 CPUtime=0.29
/proc/10868/stat : 10868 (cmusat) R 10866 10868 8942 0 -1 4194304 1247 0 0 0 29 0 0 0 19 0 1 0 203105907 5795840 1231 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134530328 0 0 4096 35 0 0 0 17 1 0 0
/proc/10868/statm: 1415 1231 107 243 0 1169 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5660

[startup+0.70138 s]
/proc/loadavg: 0.78 0.91 0.89 3/77 10868
/proc/meminfo: memFree=1702520/2055920 swapFree=4159384/4192956
[pid=10868] ppid=10866 vsize=6652 CPUtime=0.69
/proc/10868/stat : 10868 (cmusat) R 10866 10868 8942 0 -1 4194304 1502 0 0 0 69 0 0 0 22 0 1 0 203105907 6811648 1486 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134530288 0 0 4096 35 0 0 0 17 1 0 0
/proc/10868/statm: 1663 1486 108 243 0 1417 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6652

[startup+1.50152 s]
/proc/loadavg: 0.78 0.91 0.89 2/78 10869
/proc/meminfo: memFree=1696304/2055920 swapFree=4159384/4192956
[pid=10868] ppid=10866 vsize=7980 CPUtime=1.49
/proc/10868/stat : 10868 (cmusat) R 10866 10868 8942 0 -1 4194304 1822 0 0 0 149 0 0 0 25 0 1 0 203105907 8171520 1806 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134522240 0 0 4096 35 0 0 0 17 1 0 0
/proc/10868/statm: 1995 1806 108 243 0 1749 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7980

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

[startup+1.90158 s]
/proc/loadavg: 0.78 0.91 0.89 2/78 10869
/proc/meminfo: memFree=1696304/2055920 swapFree=4159384/4192956
[pid=10868] ppid=10866 vsize=9040 CPUtime=1.89
/proc/10868/stat : 10868 (cmusat) R 10866 10868 8942 0 -1 4194304 2074 0 0 0 188 1 0 0 25 0 1 0 203105907 9256960 2058 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/10868/statm: 2260 2058 108 243 0 2014 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 9040

[startup+2.0016 s]
/proc/loadavg: 0.78 0.91 0.89 2/78 10869
/proc/meminfo: memFree=1696304/2055920 swapFree=4159384/4192956
[pid=10868] ppid=10866 vsize=8944 CPUtime=1.99
/proc/10868/stat : 10868 (cmusat) R 10866 10868 8942 0 -1 4194304 2416 0 0 0 198 1 0 0 25 0 1 0 203105907 9158656 2084 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134542486 0 0 4096 35 0 0 0 17 1 0 0
/proc/10868/statm: 2236 2084 111 243 0 1990 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 8944

Child status: 20
Real time (s): 2.01816
CPU time (s): 2.01669
CPU user time (s): 2.00269
CPU system time (s): 0.013997
CPU usage (%): 99.9274
Max. virtual memory (cumulated for all children) (KiB): 9040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.0027
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= 2418
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= 3

runsolver used 0.002999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Thu Apr 26 01:45:39 UTC 2007

IDJOB= 370090
IDBENCH= 24590
IDSOLVER= 182
FILE ID= node39/370090-1177551938

PBS_JOBID= 4696584

Free space on /tmp= 66486 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/370090-1177551938/cmusat /tmp/evaluation/370090-1177551938/instance-370090-1177551938.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-370090-1177551938 -o ROOT/results/node39/solver-370090-1177551938 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370090-1177551938/cmusat /tmp/evaluation/370090-1177551938/instance-370090-1177551938.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  922dc9f32281b0c4efd640c112a641b6

RANDOM SEED= 981035799

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.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		: 3000.256
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		: 3000.256
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:       1702864 kB
Buffers:         39908 kB
Cached:         211804 kB
SwapCached:      13964 kB
Active:         186388 kB
Inactive:       101148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1702864 kB
SwapTotal:     4192956 kB
SwapFree:      4159384 kB
Dirty:            3732 kB
Writeback:           0 kB
Mapped:          42768 kB
Slab:            50716 kB
Committed_AS:  2042200 kB
PageTables:       2040 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= 66486 MiB

End job on node39 on Thu Apr 26 01:45:41 UTC 2007