Trace number 370010

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
MXC 2007-02-08UNSAT 12.3051 12.3215

General information on the benchmark

Namecrafted/spence/
medium/s69-100.cnf
MD5SUMb1f1c259b38436e8c9f1623770b4a93b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.98039
Satisfiable
(Un)Satisfiability was proved
Number of variables69
Number of clauses148
Sum of the clauses size444
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3148
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

12.29/12.31	c MXC attempting /tmp/evaluation/370010-1177550706/instance-370010-1177550706.cnf
12.29/12.31	c 0 assignments made, starting to guess now
12.29/12.31	c ===================================[MXC]=====================================
12.29/12.31	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
12.29/12.31	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
12.29/12.31	c =============================================================================
12.29/12.31	c |         0 |     148      444 |    1000       0       0     nan |  0.000 % |
12.29/12.31	c |       101 |     148      444 |    1100     101    1256    12.4 |  0.000 % |
12.29/12.31	c |       251 |     148      444 |    1210     251    3166    12.6 |  0.000 % |
12.29/12.31	c |       480 |     148      444 |    1331     480    5941    12.4 |  0.000 % |
12.29/12.31	c |       817 |     148      444 |    1464     817    9924    12.1 |  0.000 % |
12.29/12.31	c |      1325 |     148      444 |    1610    1325   15597    11.8 |  0.000 % |
12.29/12.31	c |      2085 |     148      444 |    1771    1280   13865    10.8 |  0.000 % |
12.29/12.31	c |      3225 |     148      444 |    1948    1534   17137    11.2 |  0.000 % |
12.29/12.32	c |      4933 |     148      444 |    2143    1293   15232    11.8 |  0.000 % |
12.29/12.32	c |      7496 |     148      444 |    2357    1712   20789    12.1 |  0.000 % |
12.29/12.32	c |     11340 |     148      444 |    2593    2021   24549    12.1 |  0.000 % |
12.29/12.32	c |     17107 |     148      444 |    2853    1305   14961    11.5 |  0.000 % |
12.29/12.32	c |     25757 |     148      444 |    3138    2821   32283    11.4 |  0.000 % |
12.29/12.32	c |     38731 |     148      444 |    3452    1679   17136    10.2 |  0.000 % |
12.29/12.32	c |     58192 |     148      444 |    3797    2165   21041     9.7 |  0.000 % |
12.29/12.32	c |     87384 |     148      444 |    4177    2888   29456    10.2 |  0.000 % |
12.29/12.32	c |    131173 |     148      444 |    4594    2833   29817    10.5 |  0.000 % |
12.29/12.32	c |    196857 |     148      444 |    5054    4227   42096    10.0 |  0.000 % |
12.29/12.32	c |    295383 |     142      426 |    5559    4203   43445    10.3 |  1.449 % |
12.29/12.32	c 12.300s elapsed
12.29/12.32	c restarts: 18
12.29/12.32	c decisions: 459139
12.29/12.32	c propagations: 7211802
12.29/12.32	c conflicts: 371428
12.29/12.32	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/node74/watcher-370010-1177550706 -o ROOT/results/node74/solver-370010-1177550706 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370010-1177550706/mxc /tmp/evaluation/370010-1177550706/instance-370010-1177550706.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 0.92 3/66 29267
/proc/meminfo: memFree=1805656/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=932 CPUtime=0
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 95 0 0 0 0 0 0 0 18 0 1 0 202985353 954368 80 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 233 80 59 122 0 107 0

[startup+0.0832211 s]
/proc/loadavg: 0.85 0.97 0.92 3/66 29267
/proc/meminfo: memFree=1805656/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1072 CPUtime=0.08
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 151 0 0 0 8 0 0 0 18 0 1 0 202985353 1097728 134 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519194 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 268 134 67 122 0 142 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1072

[startup+0.101222 s]
/proc/loadavg: 0.85 0.97 0.92 3/66 29267
/proc/meminfo: memFree=1805656/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1072 CPUtime=0.1
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 154 0 0 0 10 0 0 0 18 0 1 0 202985353 1097728 137 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 268 137 67 122 0 142 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1072

[startup+0.301245 s]
/proc/loadavg: 0.85 0.97 0.92 3/66 29267
/proc/meminfo: memFree=1805656/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1196 CPUtime=0.3
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 185 0 0 0 30 0 0 0 19 0 1 0 202985353 1224704 168 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519890 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 299 168 67 122 0 173 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1196

[startup+0.701291 s]
/proc/loadavg: 0.85 0.97 0.92 3/66 29267
/proc/meminfo: memFree=1805656/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1320 CPUtime=0.7
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 208 0 0 0 70 0 0 0 22 0 1 0 202985353 1351680 191 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 330 191 67 122 0 204 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1320

[startup+1.50138 s]
/proc/loadavg: 0.85 0.97 0.92 2/67 29268
/proc/meminfo: memFree=1805136/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1440 CPUtime=1.5
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 230 0 0 0 150 0 0 0 25 0 1 0 202985353 1474560 213 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519587 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 360 213 67 122 0 234 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1440

[startup+3.10157 s]
/proc/loadavg: 0.85 0.97 0.92 2/67 29268
/proc/meminfo: memFree=1804880/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1580 CPUtime=3.1
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 270 0 0 0 310 0 0 0 25 0 1 0 202985353 1617920 253 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519951 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 395 253 67 122 0 269 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1580

[startup+6.30194 s]
/proc/loadavg: 0.86 0.97 0.92 2/67 29268
/proc/meminfo: memFree=1804624/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1692 CPUtime=6.3
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 308 0 0 0 630 0 0 0 25 0 1 0 202985353 1732608 291 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 423 291 67 122 0 297 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 1692

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

[startup+9.50131 s]
/proc/loadavg: 0.86 0.97 0.92 2/67 29268
/proc/meminfo: memFree=1804496/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1804 CPUtime=9.49
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 330 0 0 0 949 0 0 0 25 0 1 0 202985353 1847296 313 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134534751 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 451 313 67 122 0 325 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 1804

[startup+11.1015 s]
/proc/loadavg: 0.87 0.97 0.92 2/67 29268
/proc/meminfo: memFree=1804432/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1804 CPUtime=11.09
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 338 0 0 0 1109 0 0 0 25 0 1 0 202985353 1847296 321 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519261 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 451 321 67 122 0 325 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 1804

[startup+11.9026 s]
/proc/loadavg: 0.87 0.97 0.92 2/67 29268
/proc/meminfo: memFree=1804432/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1804 CPUtime=11.89
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 342 0 0 0 1189 0 0 0 25 0 1 0 202985353 1847296 325 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519238 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 451 325 67 122 0 325 0
Current children cumulated CPU time (s) 11.89
Current children cumulated vsize (KiB) 1804

[startup+12.3016 s]
/proc/loadavg: 0.87 0.97 0.92 2/67 29268
/proc/meminfo: memFree=1804368/2055920 swapFree=4183092/4192956
[pid=29267] ppid=29265 vsize=1916 CPUtime=12.29
/proc/29267/stat : 29267 (mxc) R 29265 29267 28709 0 -1 4194304 344 0 0 0 1229 0 0 0 25 0 1 0 202985353 1961984 327 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/29267/statm: 479 327 67 122 0 353 0
Current children cumulated CPU time (s) 12.29
Current children cumulated vsize (KiB) 1916

Child status: 20
Real time (s): 12.3215
CPU time (s): 12.3051
CPU user time (s): 12.3031
CPU system time (s): 0.001999
CPU usage (%): 99.8675
Max. virtual memory (cumulated for all children) (KiB): 1916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.3031
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 345
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= 9
involuntary context switches= 18

runsolver used 0.015997 second user time and 0.025996 second system time

The end

Launcher Data (download as text)

Begin job on node74 on Thu Apr 26 01:25:06 UTC 2007

IDJOB= 370010
IDBENCH= 20435
IDSOLVER= 181
FILE ID= node74/370010-1177550706

PBS_JOBID= 4696589

Free space on /tmp= 103205 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s69-100.cnf
COMMAND LINE= /tmp/evaluation/370010-1177550706/mxc /tmp/evaluation/370010-1177550706/instance-370010-1177550706.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node74/watcher-370010-1177550706 -o ROOT/results/node74/solver-370010-1177550706 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370010-1177550706/mxc /tmp/evaluation/370010-1177550706/instance-370010-1177550706.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  b1f1c259b38436e8c9f1623770b4a93b

RANDOM SEED= 738892737

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node74.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		: 3000.213
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		: 3000.213
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:       1806064 kB
Buffers:         26124 kB
Cached:         156096 kB
SwapCached:       3148 kB
Active:          51600 kB
Inactive:       140612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1806064 kB
SwapTotal:     4192956 kB
SwapFree:      4183092 kB
Dirty:             732 kB
Writeback:           0 kB
Mapped:          16020 kB
Slab:            43384 kB
Committed_AS:  4024256 kB
PageTables:       1480 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 103205 MiB

End job on node74 on Thu Apr 26 01:25:18 UTC 2007