Trace number 456487

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
Rsat 2007-02-08UNSAT 7.31889 7.32513

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 Parsing...
0.38/0.48	c ==============================================================================
0.38/0.48	c |           |     ORIGINAL     |              LEARNT              |          |
0.38/0.48	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.38/0.48	c ==============================================================================
0.38/0.48	c |         0 |  179700   718192 |   53909       0        0     nan |  0.000 % |
4.39/4.48	c |         0 |    2098     8390 |      --       0       --      -- |     --   | -177602/-709802
4.39/4.48	c ==============================================================================
4.39/4.48	c Result  :   #vars: 1077   #clauses: 2098   #literals: 8390
4.39/4.48	c CPU time:   3.9154 s
4.39/4.48	c ==============================================================================
4.39/4.49	c Rsat version 2.00
7.28/7.30	c CNF stats: (1077 vars, 2098 clauses)
7.28/7.30	c Decisions: 360459
7.28/7.30	c Conflicts: 130189
7.28/7.31	c Time: 2.81000s
7.28/7.32	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/node4/watcher-456487-1178344459 -o ROOT/results/node4/solver-456487-1178344459 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/456487-1178344459/rsat.sh /tmp/evaluation/456487-1178344459/instance-456487-1178344459.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: 0.85 0.97 0.99 3/77 7538
/proc/meminfo: memFree=1816152/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=0
/proc/7538/stat : 7538 (rsat.sh) R 7536 7538 7482 0 -1 4194304 264 0 0 0 0 0 0 0 18 0 1 0 310483718 5484544 233 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913214623 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/7538/statm: 1339 233 194 169 0 50 0
[pid=7539] ppid=7538 vsize=1364 CPUtime=0
/proc/7539/stat : 7539 (SatElite) R 7538 7538 7482 0 -1 4194304 227 0 0 0 0 0 0 0 18 0 1 0 310483719 1396736 209 18446744073709551615 134512640 135038345 4294956640 18446744073709551615 134685036 0 0 4096 3 0 0 0 17 1 0 0
/proc/7539/statm: 341 217 50 128 0 210 0

[startup+0.00777602 s]
/proc/loadavg: 0.85 0.97 0.99 3/77 7538
/proc/meminfo: memFree=1816152/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=0
/proc/7538/stat : 7538 (rsat.sh) S 7536 7538 7482 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 310483718 5484544 234 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7538/statm: 1339 234 195 169 0 50 0
[pid=7539] ppid=7538 vsize=2388 CPUtime=0
/proc/7539/stat : 7539 (SatElite) R 7538 7538 7482 0 -1 4194304 452 0 0 0 0 0 0 0 20 0 1 0 310483719 2445312 434 18446744073709551615 134512640 135038345 4294956640 18446744073709551615 134548165 0 0 4096 3 0 0 0 17 1 0 0
/proc/7539/statm: 597 436 49 128 0 466 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 7744

[startup+0.101784 s]
/proc/loadavg: 0.85 0.97 0.99 3/77 7538
/proc/meminfo: memFree=1816152/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=0
/proc/7538/stat : 7538 (rsat.sh) S 7536 7538 7482 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 310483718 5484544 234 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7538/statm: 1339 234 195 169 0 50 0
[pid=7539] ppid=7538 vsize=18384 CPUtime=0.09
/proc/7539/stat : 7539 (SatElite) R 7538 7538 7482 0 -1 4194304 3725 0 0 0 8 1 0 0 20 0 1 0 310483719 18825216 3560 18446744073709551615 134512640 135038345 4294956640 18446744073709551615 134699389 0 0 4096 3 0 0 0 17 1 0 0
/proc/7539/statm: 4596 3561 50 128 0 4465 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 23740

[startup+0.301802 s]
/proc/loadavg: 0.85 0.97 0.99 3/77 7538
/proc/meminfo: memFree=1816152/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=0
/proc/7538/stat : 7538 (rsat.sh) S 7536 7538 7482 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 310483718 5484544 234 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7538/statm: 1339 234 195 169 0 50 0
[pid=7539] ppid=7538 vsize=27864 CPUtime=0.29
/proc/7539/stat : 7539 (SatElite) R 7538 7538 7482 0 -1 4194304 6040 0 0 0 26 3 0 0 21 0 1 0 310483719 28532736 5875 18446744073709551615 134512640 135038345 4294956640 18446744073709551615 134699389 0 0 4096 3 0 0 0 17 1 0 0
/proc/7539/statm: 6966 5875 50 128 0 6835 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 33220

[startup+0.70184 s]
/proc/loadavg: 0.85 0.97 0.99 3/77 7538
/proc/meminfo: memFree=1816152/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=0
/proc/7538/stat : 7538 (rsat.sh) S 7536 7538 7482 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 310483718 5484544 234 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7538/statm: 1339 234 195 169 0 50 0
[pid=7539] ppid=7538 vsize=35668 CPUtime=0.69
/proc/7539/stat : 7539 (SatElite) R 7538 7538 7482 0 -1 4194304 8050 0 0 0 65 4 0 0 25 0 1 0 310483719 36524032 7663 18446744073709551615 134512640 135038345 4294956640 18446744073709551615 134530776 0 0 4096 3 0 0 0 17 1 0 0
/proc/7539/statm: 8917 7663 69 128 0 8786 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 41024

[startup+1.50192 s]
/proc/loadavg: 0.85 0.97 0.99 2/79 7540
/proc/meminfo: memFree=1785224/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=0
/proc/7538/stat : 7538 (rsat.sh) S 7536 7538 7482 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 310483718 5484544 234 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7538/statm: 1339 234 195 169 0 50 0
[pid=7539] ppid=7538 vsize=36400 CPUtime=1.49
/proc/7539/stat : 7539 (SatElite) R 7538 7538 7482 0 -1 4194304 18252 0 0 0 139 10 0 0 25 0 1 0 310483719 37273600 7762 18446744073709551615 134512640 135038345 4294956640 18446744073709551615 134571584 0 0 4096 3 0 0 0 17 1 0 0
/proc/7539/statm: 9100 7762 69 128 0 8969 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 41756

[startup+3.10107 s]
/proc/loadavg: 0.86 0.97 0.99 2/79 7540
/proc/meminfo: memFree=1782792/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=0
/proc/7538/stat : 7538 (rsat.sh) S 7536 7538 7482 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 310483718 5484544 234 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7538/statm: 1339 234 195 169 0 50 0
[pid=7539] ppid=7538 vsize=37224 CPUtime=3.09
/proc/7539/stat : 7539 (SatElite) R 7538 7538 7482 0 -1 4194304 56267 0 0 0 281 28 0 0 25 0 1 0 310483719 38117376 7970 18446744073709551615 134512640 135038345 4294956640 18446744073709551615 134699485 0 0 4096 3 0 0 0 17 1 0 0
/proc/7539/statm: 9306 7970 69 128 0 9175 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 42580

[startup+6.30238 s]
/proc/loadavg: 0.86 0.97 0.99 2/79 7541
/proc/meminfo: memFree=1808264/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=4.48
/proc/7538/stat : 7538 (rsat.sh) S 7536 7538 7482 0 -1 4194304 305 114868 0 0 0 0 392 56 16 0 1 0 310483718 5484544 235 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7538/statm: 1339 235 195 169 0 50 0
[pid=7541] ppid=7538 vsize=5936 CPUtime=1.8
/proc/7541/stat : 7541 (rsat) R 7538 7538 7482 0 -1 4194304 2287 0 0 0 179 1 0 0 25 0 1 0 310484168 6078464 1233 18446744073709551615 134512640 135377749 4294956752 18446744073709551615 134522822 0 0 4096 1026 0 0 0 17 1 0 0
/proc/7541/statm: 1484 1233 86 211 0 1270 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 11292

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

[startup+7.10145 s]
/proc/loadavg: 0.86 0.97 0.99 2/79 7541
/proc/meminfo: memFree=1806856/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=4.48
/proc/7538/stat : 7538 (rsat.sh) S 7536 7538 7482 0 -1 4194304 305 114868 0 0 0 0 392 56 16 0 1 0 310483718 5484544 235 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7538/statm: 1339 235 195 169 0 50 0
[pid=7541] ppid=7538 vsize=6500 CPUtime=2.6
/proc/7541/stat : 7541 (rsat) R 7538 7538 7482 0 -1 4194304 2444 0 0 0 259 1 0 0 25 0 1 0 310484168 6656000 1390 18446744073709551615 134512640 135377749 4294956752 18446744073709551615 134522801 0 0 4096 1026 0 0 0 17 1 0 0
/proc/7541/statm: 1625 1390 86 211 0 1411 0
Current children cumulated CPU time (s) 7.08
Current children cumulated vsize (KiB) 11856

[startup+7.30148 s]
/proc/loadavg: 0.86 0.97 0.99 2/79 7541
/proc/meminfo: memFree=1806856/2055920 swapFree=4141216/4192956
[pid=7538] ppid=7536 vsize=5356 CPUtime=4.48
/proc/7538/stat : 7538 (rsat.sh) S 7536 7538 7482 0 -1 4194304 305 114868 0 0 0 0 392 56 16 0 1 0 310483718 5484544 235 18446744073709551615 4194304 4889804 548682069200 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/7538/statm: 1339 235 195 169 0 50 0
[pid=7541] ppid=7538 vsize=6636 CPUtime=2.8
/proc/7541/stat : 7541 (rsat) R 7538 7538 7482 0 -1 4194304 2493 0 0 0 279 1 0 0 25 0 1 0 310484168 6795264 1439 18446744073709551615 134512640 135377749 4294956752 18446744073709551615 134518151 0 0 4096 1026 0 0 0 17 1 0 0
/proc/7541/statm: 1659 1439 86 211 0 1445 0
Current children cumulated CPU time (s) 7.28
Current children cumulated vsize (KiB) 11992

Child status: 20
Real time (s): 7.32513
CPU time (s): 7.31889
CPU user time (s): 6.72898
CPU system time (s): 0.58991
CPU usage (%): 99.9148
Max. virtual memory (cumulated for all children) (KiB): 45600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.72898
system time used= 0.58991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 117826
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= 27
involuntary context switches= 166

runsolver used 0.012998 second user time and 0.019996 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Sat May  5 05:54:20 UTC 2007

IDJOB= 456487
IDBENCH= 24728
IDSOLVER= 169
FILE ID= node4/456487-1178344459

PBS_JOBID= 5188612

Free space on /tmp= 66558 MiB

SOLVER NAME= Rsat 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/456487-1178344459/rsat.sh /tmp/evaluation/456487-1178344459/instance-456487-1178344459.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-456487-1178344459 -o ROOT/results/node4/solver-456487-1178344459 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/456487-1178344459/rsat.sh /tmp/evaluation/456487-1178344459/instance-456487-1178344459.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  4c3b2816cb16b0fd4134bf2c85ce45d0

RANDOM SEED= 928027324

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.218
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	: 5931.00
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		: 3000.218
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:       1816624 kB
Buffers:         37968 kB
Cached:         112628 kB
SwapCached:      15188 kB
Active:         100180 kB
Inactive:        73252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1816624 kB
SwapTotal:     4192956 kB
SwapFree:      4141216 kB
Dirty:            6692 kB
Writeback:           0 kB
Mapped:          29728 kB
Slab:            51420 kB
Committed_AS:  9806020 kB
PageTables:       1816 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= 66558 MiB

End job on node4 on Sat May  5 05:54:27 UTC 2007