Trace number 370202

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 2.65459 2.65553

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
MD5SUM4c3b2816cb16b0fd4134bf2c85ce45d0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.9397
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179702
Sum of the clauses size718202
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2300
Number of clauses of size 30
Number of clauses of size 4179400
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Pre-processing provided 0 assignments
0.00/0.00	c |  Number of variables:  90300                                                |
0.79/0.83	c |  Number of clauses:    179702                                               |
2.59/2.64	c |  Parsing time:         0.80         sec                                       |
2.59/2.64	c #varS 90300 #clauseS 314238
2.59/2.64	c REMAP internally 1
2.59/2.64	c 
2.59/2.64	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/node14/watcher-370202-1177552473 -o ROOT/results/node14/solver-370202-1177552473 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370202-1177552473/cmusat /tmp/evaluation/370202-1177552473/instance-370202-1177552473.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: 0.91 0.97 0.94 3/77 1948
/proc/meminfo: memFree=1624840/2055920 swapFree=4148824/4192956
[pid=1948] ppid=1946 vsize=2936 CPUtime=0
/proc/1948/stat : 1948 (cmusat) R 1946 1948 1135 0 -1 4194304 579 0 0 0 0 0 0 0 18 0 1 0 203165096 3006464 563 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134548958 0 0 4096 35 0 0 0 17 1 0 0
/proc/1948/statm: 734 564 95 243 0 488 0

[startup+0.0681829 s]
/proc/loadavg: 0.91 0.97 0.94 3/77 1948
/proc/meminfo: memFree=1624840/2055920 swapFree=4148824/4192956
[pid=1948] ppid=1946 vsize=12400 CPUtime=0.06
/proc/1948/stat : 1948 (cmusat) R 1946 1948 1135 0 -1 4194304 2837 0 0 0 5 1 0 0 18 0 1 0 203165096 12697600 2804 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134551386 0 0 4096 35 0 0 0 17 1 0 0
/proc/1948/statm: 3100 2805 96 243 0 2854 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12400

[startup+0.101184 s]
/proc/loadavg: 0.91 0.97 0.94 3/77 1948
/proc/meminfo: memFree=1624840/2055920 swapFree=4148824/4192956
[pid=1948] ppid=1946 vsize=13256 CPUtime=0.09
/proc/1948/stat : 1948 (cmusat) R 1946 1948 1135 0 -1 4194304 3062 0 0 0 8 1 0 0 18 0 1 0 203165096 13574144 3029 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/1948/statm: 3347 3030 96 243 0 3101 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13256

[startup+0.301204 s]
/proc/loadavg: 0.91 0.97 0.94 3/77 1948
/proc/meminfo: memFree=1624840/2055920 swapFree=4148824/4192956
[pid=1948] ppid=1946 vsize=17188 CPUtime=0.29
/proc/1948/stat : 1948 (cmusat) R 1946 1948 1135 0 -1 4194304 3980 0 0 0 27 2 0 0 19 0 1 0 203165096 17600512 3947 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/1948/statm: 4297 3947 96 243 0 4051 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17188

[startup+0.701242 s]
/proc/loadavg: 0.91 0.97 0.94 3/77 1948
/proc/meminfo: memFree=1624840/2055920 swapFree=4148824/4192956
[pid=1948] ppid=1946 vsize=23760 CPUtime=0.69
/proc/1948/stat : 1948 (cmusat) R 1946 1948 1135 0 -1 4194304 5566 0 0 0 66 3 0 0 22 0 1 0 203165096 24330240 5533 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/1948/statm: 5940 5533 96 243 0 5694 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 23760

[startup+1.50132 s]
/proc/loadavg: 0.91 0.97 0.94 2/78 1949
/proc/meminfo: memFree=1601152/2055920 swapFree=4148824/4192956
[pid=1948] ppid=1946 vsize=33356 CPUtime=1.49
/proc/1948/stat : 1948 (cmusat) R 1946 1948 1135 0 -1 4194304 7885 0 0 0 145 4 0 0 25 0 1 0 203165096 34156544 7852 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/1948/statm: 8339 7852 109 243 0 8093 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33356

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

[startup+2.30139 s]
/proc/loadavg: 0.91 0.97 0.94 2/78 1949
/proc/meminfo: memFree=1585408/2055920 swapFree=4148824/4192956
[pid=1948] ppid=1946 vsize=33112 CPUtime=2.29
/proc/1948/stat : 1948 (cmusat) R 1946 1948 1135 0 -1 4194304 10845 0 0 0 223 6 0 0 25 0 1 0 203165096 33906688 8119 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135107896 0 0 4096 35 0 0 0 17 1 0 0
/proc/1948/statm: 8278 8119 112 243 0 8032 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 33112

[startup+2.50141 s]
/proc/loadavg: 0.91 0.97 0.94 2/78 1949
/proc/meminfo: memFree=1585408/2055920 swapFree=4148824/4192956
[pid=1948] ppid=1946 vsize=33112 CPUtime=2.49
/proc/1948/stat : 1948 (cmusat) R 1946 1948 1135 0 -1 4194304 10845 0 0 0 243 6 0 0 25 0 1 0 203165096 33906688 8119 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135090871 0 0 4096 35 0 0 0 17 1 0 0
/proc/1948/statm: 8278 8119 112 243 0 8032 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 33112

[startup+2.60142 s]
/proc/loadavg: 0.91 0.97 0.94 2/78 1949
/proc/meminfo: memFree=1585408/2055920 swapFree=4148824/4192956
[pid=1948] ppid=1946 vsize=33112 CPUtime=2.59
/proc/1948/stat : 1948 (cmusat) R 1946 1948 1135 0 -1 4194304 10845 0 0 0 253 6 0 0 25 0 1 0 203165096 33906688 8119 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135107899 0 0 4096 35 0 0 0 17 1 0 0
/proc/1948/statm: 8278 8119 112 243 0 8032 0
Current children cumulated CPU time (s) 2.59
Current children cumulated vsize (KiB) 33112

Child status: 20
Real time (s): 2.65553
CPU time (s): 2.65459
CPU user time (s): 2.58061
CPU system time (s): 0.073988
CPU usage (%): 99.9646
Max. virtual memory (cumulated for all children) (KiB): 45076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.58061
system time used= 0.073988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10847
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= 6

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Thu Apr 26 01:54:33 UTC 2007

IDJOB= 370202
IDBENCH= 24728
IDSOLVER= 182
FILE ID= node14/370202-1177552473

PBS_JOBID= 4696618

Free space on /tmp= 66204 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/370202-1177552473/cmusat /tmp/evaluation/370202-1177552473/instance-370202-1177552473.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-370202-1177552473 -o ROOT/results/node14/solver-370202-1177552473 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370202-1177552473/cmusat /tmp/evaluation/370202-1177552473/instance-370202-1177552473.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  4c3b2816cb16b0fd4134bf2c85ce45d0

RANDOM SEED= 354266237

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.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		: 3000.227
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		: 3000.227
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:       1625248 kB
Buffers:         41060 kB
Cached:         266248 kB
SwapCached:      12020 kB
Active:         241948 kB
Inactive:       126652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1625248 kB
SwapTotal:     4192956 kB
SwapFree:      4148824 kB
Dirty:            7360 kB
Writeback:           0 kB
Mapped:          67936 kB
Slab:            47528 kB
Committed_AS:  7881644 kB
PageTables:       1888 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= 66204 MiB

End job on node14 on Thu Apr 26 01:54:36 UTC 2007