Trace number 1832330

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
MiniSAT 09z 2009-03-22? (exit code) 2.54461 2.54587

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-sat-grid-pbl-0300.sat05-1341.sat05-1341.reshuffled-07.cnf
MD5SUMe899c85929b7de69ebfb14f0dad93191
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.53577
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179701
Sum of the clauses size718198
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 4179399
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c Parsing...
0.00/0.43	c ==============================================================================
0.00/0.43	c |           |     ORIGINAL     |              LEARNT              |          |
0.00/0.43	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.00/0.43	c ==============================================================================
0.00/0.43	c |         0 |  179699   718196 |   53909       0        0     nan |  0.000 % |
2.48/2.53	c |         0 |       0        0 |      --       0       --      -- |     --   | -179699/-718188
2.48/2.53	c ==============================================================================
2.48/2.53	c Result  :   #vars: 0   #clauses: 0   #literals: 0
2.48/2.53	c CPU time:   2.34364 s
2.48/2.53	c ==============================================================================
2.48/2.54	c WARNING: for repeatability, setting FPU to use double precision
2.48/2.54	c Number of variables   : 0            
2.48/2.54	c Number of clauses     : 0            
2.48/2.54	c Parsing time: 0.00         s
2.48/2.54	HOME/SatELiteGTI: line 36: 10321 Segmentation fault      (core dumped) $MS $2 $TMP.cnf $TMP.result

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1832330-1242771944/watcher-1832330-1242771944 -o /tmp/evaluation-result-1832330-1242771944/solver-1832330-1242771944 -C 1200 -W 1800 -M 1800 SatELiteGTI HOME/instance-1832330-1242771944.cnf -random-seed=1184020153 

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): 1800 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 10315
/proc/meminfo: memFree=1840176/2055920 swapFree=4179876/4192956
[pid=10315] ppid=10313 vsize=5356 CPUtime=0
/proc/10315/stat : 10315 (SatELiteGTI) S 10313 10315 10088 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 305220899 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 227607634756 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10315/statm: 1339 237 197 169 0 50 0

[startup+0.013102 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 10315
/proc/meminfo: memFree=1840176/2055920 swapFree=4179876/4192956
[pid=10315] ppid=10313 vsize=5356 CPUtime=0
/proc/10315/stat : 10315 (SatELiteGTI) S 10313 10315 10088 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 305220899 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 227607634756 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10315/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101127 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 10315
/proc/meminfo: memFree=1840176/2055920 swapFree=4179876/4192956
[pid=10315] ppid=10313 vsize=5356 CPUtime=0
/proc/10315/stat : 10315 (SatELiteGTI) S 10313 10315 10088 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 305220899 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 227607634756 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10315/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.301165 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 10315
/proc/meminfo: memFree=1840176/2055920 swapFree=4179876/4192956
[pid=10315] ppid=10313 vsize=5356 CPUtime=0
/proc/10315/stat : 10315 (SatELiteGTI) S 10313 10315 10088 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 305220899 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 227607634756 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10315/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.701244 s]
/proc/loadavg: 0.99 0.97 0.91 3/64 10315
/proc/meminfo: memFree=1840176/2055920 swapFree=4179876/4192956
[pid=10315] ppid=10313 vsize=5356 CPUtime=0
/proc/10315/stat : 10315 (SatELiteGTI) S 10313 10315 10088 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 305220899 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 227607634756 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10315/statm: 1339 237 197 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+1.5014 s]
/proc/loadavg: 0.99 0.97 0.91 2/66 10320
/proc/meminfo: memFree=1809504/2055920 swapFree=4179876/4192956
[pid=10315] ppid=10313 vsize=5356 CPUtime=0
/proc/10315/stat : 10315 (SatELiteGTI) S 10313 10315 10088 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 305220899 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 227607634756 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10315/statm: 1339 237 197 169 0 50 0
[pid=10319] ppid=10315 vsize=39852 CPUtime=1.48
/proc/10319/stat : 10319 (SatELite_releas) R 10315 10315 10088 0 -1 4194304 17485 0 0 0 139 9 0 0 25 0 1 0 305220900 40808448 8297 1992294400 134512640 135223648 4294956128 18446744073709551615 134546390 0 0 4096 3 0 0 0 17 1 0 0
/proc/10319/statm: 9963 8297 76 173 0 9788 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 45208

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

[startup+2.30255 s]
/proc/loadavg: 0.99 0.97 0.91 2/66 10320
/proc/meminfo: memFree=1806240/2055920 swapFree=4179876/4192956
[pid=10315] ppid=10313 vsize=5356 CPUtime=0
/proc/10315/stat : 10315 (SatELiteGTI) S 10313 10315 10088 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 305220899 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 227607634756 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10315/statm: 1339 237 197 169 0 50 0
[pid=10319] ppid=10315 vsize=38276 CPUtime=2.28
/proc/10319/stat : 10319 (SatELite_releas) R 10315 10315 10088 0 -1 4194304 32578 0 0 0 212 16 0 0 25 0 1 0 305220900 39194624 8077 1992294400 134512640 135223648 4294956128 18446744073709551615 134741121 0 0 4096 3 0 0 0 17 1 0 0
/proc/10319/statm: 9569 8077 76 173 0 9394 0
Current children cumulated CPU time (s) 2.28
Current children cumulated vsize (KiB) 43632

[startup+2.50159 s]
/proc/loadavg: 0.99 0.97 0.91 2/66 10320
/proc/meminfo: memFree=1806240/2055920 swapFree=4179876/4192956
[pid=10315] ppid=10313 vsize=5356 CPUtime=0
/proc/10315/stat : 10315 (SatELiteGTI) S 10313 10315 10088 0 -1 4194304 310 250 0 0 0 0 0 0 19 0 1 0 305220899 5484544 237 1992294400 4194304 4889804 548682068800 18446744073709551615 227607634756 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10315/statm: 1339 237 197 169 0 50 0
[pid=10319] ppid=10315 vsize=38788 CPUtime=2.48
/proc/10319/stat : 10319 (SatELite_releas) R 10315 10315 10088 0 -1 4194304 32672 0 0 0 231 17 0 0 25 0 1 0 305220900 39718912 8171 1992294400 134512640 135223648 4294956128 18446744073709551615 134737406 0 0 4096 3 0 0 0 17 1 0 0
/proc/10319/statm: 9697 8171 76 173 0 9522 0
Current children cumulated CPU time (s) 2.48
Current children cumulated vsize (KiB) 44144

Child status: 139
Real time (s): 2.54587
CPU time (s): 2.54461
CPU user time (s): 2.34964
CPU system time (s): 0.19497
CPU usage (%): 99.9504
Max. virtual memory (cumulated for all children) (KiB): 45568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.34964
system time used= 0.19497
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 33818
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= 20
involuntary context switches= 21

runsolver used 0.002999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node66 at 2009-05-20 00:25:45
IDJOB=1832330
IDBENCH=24723
IDSOLVER=672
FILE ID=node66/1832330-1242771944
PBS_JOBID= 9322236
Free space on /tmp= 66436 MiB

SOLVER NAME= MiniSAT 09z 2009-03-22
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-sat-grid-pbl-0300.sat05-1341.sat05-1341.reshuffled-07.cnf
COMMAND LINE= SatELiteGTI BENCHNAME -random-seed=RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1832330-1242771944/watcher-1832330-1242771944 -o /tmp/evaluation-result-1832330-1242771944/solver-1832330-1242771944 -C 1200 -W 1800 -M 1800  SatELiteGTI HOME/instance-1832330-1242771944.cnf -random-seed=1184020153

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= e899c85929b7de69ebfb14f0dad93191
RANDOM SEED=1184020153

node66.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.263
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		: 3000.263
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:       1840720 kB
Buffers:         15912 kB
Cached:         159000 kB
SwapCached:       7328 kB
Active:          30208 kB
Inactive:       153576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1840720 kB
SwapTotal:     4192956 kB
SwapFree:      4179876 kB
Dirty:            6396 kB
Writeback:           0 kB
Mapped:          13980 kB
Slab:            17532 kB
Committed_AS:  1113884 kB
PageTables:       1364 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= 66432 MiB
End job on node66 at 2009-05-20 00:25:48