Trace number 426876

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 78.3431 78.3729

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1377128774-12-UNSAT.cnf
MD5SUMcc733e9a0d26b1e09913a40f9eba8e3c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark30.0934
Satisfiable
(Un)Satisfiability was proved
Number of variables3500
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.02/0.04	c Starting solver ...
0.02/0.06	c Restarting after 101 conflicts
0.02/0.09	c Restarting after 251 conflicts
0.10/0.13	c Restarting after 477 conflicts
0.20/0.20	c Restarting after 814 conflicts
0.30/0.32	c Restarting after 1320 conflicts
0.40/0.49	c Restarting after 2079 conflicts
0.70/0.77	c Restarting after 3218 conflicts
1.19/1.21	c Restarting after 4926 conflicts
1.79/1.90	c Restarting after 7489 conflicts
2.89/2.96	c Restarting after 11338 conflicts
4.59/4.66	c Restarting after 17105 conflicts
7.29/7.37	c Restarting after 25754 conflicts
11.69/11.76	c Restarting after 38728 conflicts
18.88/18.93	c Restarting after 58189 conflicts
29.78/29.80	c Restarting after 87384 conflicts
47.37/47.44	c Restarting after 131173 conflicts
74.86/74.99	c Restarting after 196858 conflicts
78.26/78.36	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/node38/watcher-426876-1177830390 -o ROOT/results/node38/solver-426876-1177830390 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/426876-1177830390/sat7_bin /tmp/evaluation/426876-1177830390/instance-426876-1177830390.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: 0.92 0.95 0.98 3/77 20110
/proc/meminfo: memFree=1482104/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=1368 CPUtime=0
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 221 0 0 0 0 0 0 0 18 0 1 0 215205675 1400832 205 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532130 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 407 207 88 220 0 184 0

[startup+0.0259629 s]
/proc/loadavg: 0.92 0.95 0.98 3/77 20110
/proc/meminfo: memFree=1482104/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=1628 CPUtime=0.02
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 284 0 0 0 2 0 0 0 18 0 1 0 215205675 1667072 268 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134558673 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 407 268 88 220 0 184 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1628

[startup+0.101977 s]
/proc/loadavg: 0.92 0.95 0.98 3/77 20110
/proc/meminfo: memFree=1482104/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=2292 CPUtime=0.1
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 412 0 0 0 10 0 0 0 18 0 1 0 215205675 2347008 396 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134529396 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 573 396 95 220 0 350 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2292

[startup+0.302015 s]
/proc/loadavg: 0.92 0.95 0.98 3/77 20110
/proc/meminfo: memFree=1482104/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=3320 CPUtime=0.3
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 449 0 0 0 30 0 0 0 19 0 1 0 215205675 3399680 433 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134542721 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 830 433 95 220 0 607 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 3320

[startup+0.702101 s]
/proc/loadavg: 0.92 0.95 0.98 3/77 20110
/proc/meminfo: memFree=1482104/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=3320 CPUtime=0.7
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 510 0 0 0 70 0 0 0 23 0 1 0 215205675 3399680 494 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134565491 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 830 494 95 220 0 607 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 3320

[startup+1.50125 s]
/proc/loadavg: 0.92 0.95 0.98 2/78 20111
/proc/meminfo: memFree=1480304/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=3320 CPUtime=1.49
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 620 0 0 0 149 0 0 0 25 0 1 0 215205675 3399680 604 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532401 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 830 604 95 220 0 607 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3320

[startup+3.10155 s]
/proc/loadavg: 0.92 0.95 0.98 2/78 20111
/proc/meminfo: memFree=1479792/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=3320 CPUtime=3.09
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 690 0 0 0 309 0 0 0 25 0 1 0 215205675 3399680 674 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532759 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 830 674 95 220 0 607 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3320

[startup+6.30117 s]
/proc/loadavg: 0.93 0.95 0.98 2/78 20111
/proc/meminfo: memFree=1479408/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=5372 CPUtime=6.29
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 780 0 0 0 629 0 0 0 25 0 1 0 215205675 5500928 764 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 1343 764 95 220 0 1120 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5372

[startup+12.7014 s]
/proc/loadavg: 0.93 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1478832/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=5504 CPUtime=12.69
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 897 0 0 0 1269 0 0 0 25 0 1 0 215205675 5636096 881 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134536531 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 1376 881 95 220 0 1153 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 5504

[startup+25.5019 s]
/proc/loadavg: 0.95 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1478256/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=5636 CPUtime=25.48
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 1039 0 0 0 2548 0 0 0 25 0 1 0 215205675 5771264 1023 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 1409 1023 95 220 0 1186 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 5636

[startup+51.1018 s]
/proc/loadavg: 0.96 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1477432/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=5768 CPUtime=51.07
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 1266 0 0 0 5106 1 0 0 25 0 1 0 215205675 5906432 1250 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532688 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 1442 1250 95 220 0 1219 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 5768

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

[startup+63.9012 s]
/proc/loadavg: 0.97 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1477240/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=5768 CPUtime=63.87
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 1298 0 0 0 6386 1 0 0 25 0 1 0 215205675 5906432 1282 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134533564 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 1442 1282 95 220 0 1219 0
Current children cumulated CPU time (s) 63.87
Current children cumulated vsize (KiB) 5768

[startup+70.3015 s]
/proc/loadavg: 0.97 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1477176/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=5900 CPUtime=70.27
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 1317 0 0 0 7026 1 0 0 25 0 1 0 215205675 6041600 1301 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 1475 1301 95 220 0 1252 0
Current children cumulated CPU time (s) 70.27
Current children cumulated vsize (KiB) 5900

[startup+73.5011 s]
/proc/loadavg: 0.97 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1477176/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=5900 CPUtime=73.46
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 1323 0 0 0 7345 1 0 0 25 0 1 0 215205675 6041600 1307 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134529280 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 1475 1307 95 220 0 1252 0
Current children cumulated CPU time (s) 73.46
Current children cumulated vsize (KiB) 5900

[startup+76.7027 s]
/proc/loadavg: 0.98 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1477112/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=10000 CPUtime=76.66
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 1342 0 0 0 7665 1 0 0 25 0 1 0 215205675 10240000 1326 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134578837 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 2500 1326 95 220 0 2277 0
Current children cumulated CPU time (s) 76.66
Current children cumulated vsize (KiB) 10000

[startup+77.5019 s]
/proc/loadavg: 0.98 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1477112/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=10000 CPUtime=77.46
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 1342 0 0 0 7745 1 0 0 25 0 1 0 215205675 10240000 1326 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 135029304 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 2500 1326 95 220 0 2277 0
Current children cumulated CPU time (s) 77.46
Current children cumulated vsize (KiB) 10000

[startup+77.9019 s]
/proc/loadavg: 0.98 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1477112/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=10000 CPUtime=77.86
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 1343 0 0 0 7785 1 0 0 25 0 1 0 215205675 10240000 1327 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532419 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 2500 1327 95 220 0 2277 0
Current children cumulated CPU time (s) 77.86
Current children cumulated vsize (KiB) 10000

[startup+78.302 s]
/proc/loadavg: 0.98 0.96 0.98 2/78 20111
/proc/meminfo: memFree=1477048/2055920 swapFree=4159768/4192956
[pid=20110] ppid=20108 vsize=10000 CPUtime=78.26
/proc/20110/stat : 20110 (sat7_bin) R 20108 20110 19018 0 -1 4194304 1345 0 0 0 7825 1 0 0 25 0 1 0 215205675 10240000 1329 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134533384 0 0 4096 0 0 0 0 17 1 0 0
/proc/20110/statm: 2500 1329 95 220 0 2277 0
Current children cumulated CPU time (s) 78.26
Current children cumulated vsize (KiB) 10000

Child status: 20
Real time (s): 78.3729
CPU time (s): 78.3431
CPU user time (s): 78.3251
CPU system time (s): 0.017997
CPU usage (%): 99.962
Max. virtual memory (cumulated for all children) (KiB): 10000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 78.3251
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1345
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= 7
involuntary context switches= 1723

runsolver used 0.073988 second user time and 0.166974 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Sun Apr 29 07:06:30 UTC 2007

IDJOB= 426876
IDBENCH= 20220
IDSOLVER= 183
FILE ID= node38/426876-1177830390

PBS_JOBID= 4718241

Free space on /tmp= 66563 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1377128774-12-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/426876-1177830390/sat7_bin /tmp/evaluation/426876-1177830390/instance-426876-1177830390.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-426876-1177830390 -o ROOT/results/node38/solver-426876-1177830390 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/426876-1177830390/sat7_bin /tmp/evaluation/426876-1177830390/instance-426876-1177830390.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  cc733e9a0d26b1e09913a40f9eba8e3c

RANDOM SEED= 94487711

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.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		: 3000.263
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	: 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		: 3000.263
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:       1482512 kB
Buffers:         49916 kB
Cached:         427244 kB
SwapCached:       3532 kB
Active:         306020 kB
Inactive:       196660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1482512 kB
SwapTotal:     4192956 kB
SwapFree:      4159768 kB
Dirty:            1472 kB
Writeback:           0 kB
Mapped:          33536 kB
Slab:            55920 kB
Committed_AS:  1800160 kB
PageTables:       2064 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= 66563 MiB

End job on node38 on Sun Apr 29 07:07:49 UTC 2007