Trace number 310612

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
SAT7 2007-02-08UNSAT 24.2753 24.2824

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
MD5SUMda575672f9caad385bd5edff99ee5f4d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.42378
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c Starting solver ...
0.00/0.01	c Restarting after 101 conflicts
0.00/0.02	c Restarting after 252 conflicts
0.00/0.04	c Restarting after 479 conflicts
0.00/0.06	c Restarting after 818 conflicts
0.00/0.10	c Restarting after 1324 conflicts
0.10/0.15	c Restarting after 2084 conflicts
0.20/0.24	c Restarting after 3223 conflicts
0.30/0.38	c Restarting after 4932 conflicts
0.51/0.60	c Restarting after 7496 conflicts
0.92/0.93	c Restarting after 11341 conflicts
1.33/1.43	c Restarting after 17107 conflicts
2.14/2.20	c Restarting after 25756 conflicts
3.27/3.36	c Restarting after 38730 conflicts
5.11/5.15	c Restarting after 58191 conflicts
7.88/7.93	c Restarting after 87383 conflicts
12.08/12.16	c Restarting after 131173 conflicts
18.43/18.52	c Restarting after 196858 conflicts
24.16/24.27	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-310612-1172560367 -o ROOT/results/node5/solver-310612-1172560367 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310612-1172560367/sat7_bin /tmp/evaluation/310612-1172560367/instance-310612-1172560367.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.72 0.92 0.97 2/77 18872
/proc/meminfo: memFree=1662688/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=1216 CPUtime=0
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 148 0 0 0 0 0 0 0 18 0 1 0 275991514 1245184 131 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532130 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 304 131 87 220 0 81 0

[startup+0.10648 s]
/proc/loadavg: 0.72 0.92 0.97 2/77 18872
/proc/meminfo: memFree=1662688/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=1612 CPUtime=0.1
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 222 0 0 0 10 0 0 0 18 0 1 0 275991514 1650688 205 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 403 205 95 220 0 180 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1612

[startup+0.514519 s]
/proc/loadavg: 0.72 0.92 0.97 2/77 18872
/proc/meminfo: memFree=1662688/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=1612 CPUtime=0.51
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 250 0 0 0 51 0 0 0 22 0 1 0 275991514 1650688 233 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532561 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 403 233 95 220 0 180 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1612

[startup+1.33461 s]
/proc/loadavg: 0.72 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1662040/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=2128 CPUtime=1.33
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 276 0 0 0 133 0 0 0 25 0 1 0 275991514 2179072 259 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134528507 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 532 259 95 220 0 309 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2128

[startup+2.9708 s]
/proc/loadavg: 0.72 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661848/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=2128 CPUtime=2.96
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 312 0 0 0 296 0 0 0 25 0 1 0 275991514 2179072 295 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 532 295 95 220 0 309 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 2128

[startup+6.24717 s]
/proc/loadavg: 0.74 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661592/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=2128 CPUtime=6.24
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 347 0 0 0 624 0 0 0 25 0 1 0 275991514 2179072 330 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134558414 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 532 330 95 220 0 309 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2128

[startup+12.7059 s]
/proc/loadavg: 0.76 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661400/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=2128 CPUtime=12.7
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 398 0 0 0 1270 0 0 0 25 0 1 0 275991514 2179072 381 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134533789 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 532 381 95 220 0 309 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 2128

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

[startup+13.118 s]
/proc/loadavg: 0.76 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661400/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=2128 CPUtime=13.11
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 400 0 0 0 1311 0 0 0 25 0 1 0 275991514 2179072 383 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532614 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 532 383 95 220 0 309 0
Current children cumulated CPU time (s) 13.11
Current children cumulated vsize (KiB) 2128

[startup+19.6747 s]
/proc/loadavg: 0.80 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661208/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=3288 CPUtime=19.66
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 434 0 0 0 1966 0 0 0 25 0 1 0 275991514 3366912 417 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134578702 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 822 417 95 220 0 599 0
Current children cumulated CPU time (s) 19.66
Current children cumulated vsize (KiB) 3288

[startup+21.3109 s]
/proc/loadavg: 0.80 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661208/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=3288 CPUtime=21.3
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 444 0 0 0 2130 0 0 0 25 0 1 0 275991514 3366912 427 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134539776 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 822 427 95 220 0 599 0
Current children cumulated CPU time (s) 21.3
Current children cumulated vsize (KiB) 3288

[startup+22.9511 s]
/proc/loadavg: 0.80 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661144/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=3288 CPUtime=22.94
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 453 0 0 0 2294 0 0 0 25 0 1 0 275991514 3366912 436 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134532694 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 822 436 95 220 0 599 0
Current children cumulated CPU time (s) 22.94
Current children cumulated vsize (KiB) 3288

[startup+23.7712 s]
/proc/loadavg: 0.81 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661144/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=3288 CPUtime=23.76
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 454 0 0 0 2376 0 0 0 25 0 1 0 275991514 3366912 437 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134541007 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 822 437 95 220 0 599 0
Current children cumulated CPU time (s) 23.76
Current children cumulated vsize (KiB) 3288

[startup+24.1792 s]
/proc/loadavg: 0.81 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661144/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=3288 CPUtime=24.16
/proc/18872/stat : 18872 (sat7_bin) R 18870 18872 18196 0 -1 4194304 457 0 0 0 2416 0 0 0 25 0 1 0 275991514 3366912 440 18446744073709551615 134512640 135417445 4294956704 18446744073709551615 134541099 0 0 4096 0 0 0 0 17 1 0 0
/proc/18872/statm: 822 440 95 220 0 599 0
Current children cumulated CPU time (s) 24.16
Current children cumulated vsize (KiB) 3288

[startup+24.2812 s]
/proc/loadavg: 0.81 0.92 0.97 2/78 18873
/proc/meminfo: memFree=1661144/2055920 swapFree=4192812/4192956
[pid=18872] ppid=18870 vsize=0 CPUtime=24.26
/proc/18872/stat : 18872 (sat7_bin) D 18870 18872 18196 0 -1 4194308 457 0 0 0 2426 0 0 0 24 0 1 0 275991514 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/18872/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 24.26
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 24.2824
CPU time (s): 24.2753
CPU user time (s): 24.2693
CPU system time (s): 0.005999
CPU usage (%): 99.9708
Max. virtual memory (cumulated for all children) (KiB): 3288

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.2693
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 457
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= 500

runsolver used 0.030995 second user time and 0.055991 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Tue Feb 27 07:12:47 UTC 2007

IDJOB= 310612
IDBENCH= 20292
IDSOLVER= 101
FILE ID= node5/310612-1172560367

PBS_JOBID= 3971668

Free space on /tmp= 66555 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310612-1172560367/sat7_bin /tmp/evaluation/310612-1172560367/instance-310612-1172560367.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-310612-1172560367 -o ROOT/results/node5/solver-310612-1172560367 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310612-1172560367/sat7_bin /tmp/evaluation/310612-1172560367/instance-310612-1172560367.cnf            

META MD5SUM SOLVER= 499b432f7af158d8586c91b2e490220f
MD5SUM BENCH=  da575672f9caad385bd5edff99ee5f4d

RANDOM SEED= 479484722

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.224
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		: 3000.224
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:       1663160 kB
Buffers:         50732 kB
Cached:         226980 kB
SwapCached:          0 kB
Active:         232192 kB
Inactive:        89548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1663160 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1364 kB
Writeback:           0 kB
Mapped:          62908 kB
Slab:            56680 kB
Committed_AS:   902268 kB
PageTables:       1692 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= 66555 MiB

End job on node5 on Tue Feb 27 07:13:12 UTC 2007