Trace number 460071

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
MiraXT v3? 6.98994 6.71081

General information on the benchmark

Nameindustrial/narain/
clauses-8.cnf
MD5SUM74bd745b1c68e4deddfa063e58b6b54d
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark3709.38
Satisfiable
(Un)Satisfiability was proved
Number of variables1461771
Number of clauses5687554
Sum of the clauses size14147618
Maximum clause length601
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 24325673
Number of clauses of size 3961281
Number of clauses of size 411051
Number of clauses of size 5354960
Number of clauses of size over 534588

Solver Data (download as text)

0.00/0.00	c Starting MiraXTv3...
6.69/6.59	c Running out of memory
6.69/6.59	s UNKNOWN

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: UNKNOWN

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node29/watcher-460071-1179018506 -o ROOT/results/node29/solver-460071-1179018506 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/460071-1179018506/MiraXTv3_dyn /tmp/evaluation/460071-1179018506/instance-460071-1179018506.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: 1.70 1.90 1.89 3/77 31959
/proc/meminfo: memFree=1028048/2055920 swapFree=4146800/4192956
[pid=31959] ppid=31957 vsize=3788 CPUtime=0
/proc/31959/stat : 31959 (MiraXTv3_dyn) R 31957 31959 31827 0 -1 4194304 339 0 0 0 0 0 0 0 18 0 1 0 349767110 3878912 314 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31959/statm: 947 320 202 20 0 305 0

[startup+0.011801 s]
/proc/loadavg: 1.70 1.90 1.89 3/77 31959
/proc/meminfo: memFree=1028048/2055920 swapFree=4146800/4192956
[pid=31959] ppid=31957 vsize=4444 CPUtime=0
/proc/31959/stat : 31959 (MiraXTv3_dyn) R 31957 31959 31827 0 -1 4194304 687 0 0 0 0 0 0 0 18 0 1 0 349767110 4550656 662 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 134575497 0 0 4096 0 0 0 0 17 1 0 0
/proc/31959/statm: 1111 664 206 20 0 469 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4444

[startup+0.102806 s]
/proc/loadavg: 1.70 1.90 1.89 3/77 31959
/proc/meminfo: memFree=1028048/2055920 swapFree=4146800/4192956
[pid=31959] ppid=31957 vsize=12468 CPUtime=0.09
/proc/31959/stat : 31959 (MiraXTv3_dyn) R 31957 31959 31827 0 -1 4194304 2480 0 0 0 8 1 0 0 18 0 1 0 349767110 12767232 2455 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 4564603 0 0 4096 0 0 0 0 17 1 0 0
/proc/31959/statm: 3117 2455 206 20 0 2475 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12468

[startup+0.301818 s]
/proc/loadavg: 1.70 1.90 1.89 3/77 31959
/proc/meminfo: memFree=1028048/2055920 swapFree=4146800/4192956
[pid=31959] ppid=31957 vsize=28000 CPUtime=0.29
/proc/31959/stat : 31959 (MiraXTv3_dyn) R 31957 31959 31827 0 -1 4194304 6398 0 0 0 27 2 0 0 19 0 1 0 349767110 28672000 6373 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 4562596 0 0 4096 0 0 0 0 17 1 0 0
/proc/31959/statm: 7000 6374 206 20 0 6358 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 28000

[startup+0.701844 s]
/proc/loadavg: 1.70 1.90 1.89 3/77 31959
/proc/meminfo: memFree=1028048/2055920 swapFree=4146800/4192956
[pid=31959] ppid=31957 vsize=59612 CPUtime=0.69
/proc/31959/stat : 31959 (MiraXTv3_dyn) R 31957 31959 31827 0 -1 4194304 13897 0 0 0 62 7 0 0 23 0 1 0 349767110 61042688 13872 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 4564603 0 0 4096 0 0 0 0 17 1 0 0
/proc/31959/statm: 14903 13873 206 20 0 14261 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 59612

[startup+1.5019 s]
/proc/loadavg: 1.70 1.90 1.89 2/78 31960
/proc/meminfo: memFree=949000/2055920 swapFree=4146800/4192956
[pid=31959] ppid=31957 vsize=124300 CPUtime=1.49
/proc/31959/stat : 31959 (MiraXTv3_dyn) R 31957 31959 31827 0 -1 4194304 27963 0 0 0 134 15 0 0 25 0 1 0 349767110 127283200 27938 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 4564603 0 0 4096 0 0 0 0 17 1 0 0
/proc/31959/statm: 31075 27938 206 20 0 30433 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 124300

[startup+3.102 s]
/proc/loadavg: 1.70 1.90 1.89 2/78 31960
/proc/meminfo: memFree=875784/2055920 swapFree=4146800/4192956
[pid=31959] ppid=31957 vsize=232476 CPUtime=3.09
/proc/31959/stat : 31959 (MiraXTv3_dyn) R 31957 31959 31827 0 -1 4194304 54943 0 0 0 279 30 0 0 25 0 1 0 349767110 238055424 54918 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 4564603 0 0 4096 0 0 0 0 17 1 0 0
/proc/31959/statm: 58119 54919 206 20 0 57477 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 232476

[startup+6.3012 s]
/proc/loadavg: 1.65 1.89 1.88 2/78 31960
/proc/meminfo: memFree=712072/2055920 swapFree=4146800/4192956
[pid=31959] ppid=31957 vsize=535880 CPUtime=6.29
/proc/31959/stat : 31959 (MiraXTv3_dyn) R 31957 31959 31827 0 -1 4194304 118819 0 0 0 571 58 0 0 25 0 1 0 349767110 548741120 118786 18446744073709551615 134512640 134597700 4294956672 18446744073709551615 134565193 0 0 4096 0 0 0 0 17 1 0 0
/proc/31959/statm: 133970 118792 208 20 0 133328 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 535880

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

[startup+6.70255 s]
/proc/loadavg: 1.65 1.89 1.88 3/80 31962
/proc/meminfo: memFree=363384/2055920 swapFree=4146800/4192956
[pid=31959] ppid=31957 vsize=0 CPUtime=6.97
/proc/31959/stat : 31959 (MiraXTv3_dyn) R 31957 31959 31827 0 -1 4195332 188722 0 0 0 586 111 0 0 17 0 1 0 349767110 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/31959/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 6.97
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 6.71081
CPU time (s): 6.98994
CPU user time (s): 5.86911
CPU system time (s): 1.12083
CPU usage (%): 104.159
Max. virtual memory (cumulated for all children) (KiB): 775888

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.86911
system time used= 1.12083
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 188722
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= 79
involuntary context switches= 145

runsolver used 0.005999 second user time and 0.024996 second system time

The end

Launcher Data (download as text)

Begin job on node29 on Sun May 13 01:08:34 UTC 2007

IDJOB= 460071
IDBENCH= 20506
IDSOLVER= 196
FILE ID= node29/460071-1179018506

PBS_JOBID= 5253222

Free space on /tmp= 66427 MiB

SOLVER NAME= MiraXT v3
BENCH NAME= HOME/pub/bench/SAT07/industrial/narain/clauses-8.cnf
COMMAND LINE= /tmp/evaluation/460071-1179018506/MiraXTv3_dyn /tmp/evaluation/460071-1179018506/instance-460071-1179018506.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-460071-1179018506 -o ROOT/results/node29/solver-460071-1179018506 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/460071-1179018506/MiraXTv3_dyn /tmp/evaluation/460071-1179018506/instance-460071-1179018506.cnf

META MD5SUM SOLVER= 2ad149617ed8d249d89b067eb44c33da
MD5SUM BENCH=  74bd745b1c68e4deddfa063e58b6b54d

RANDOM SEED= 23985946

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node29.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:       1028392 kB
Buffers:         53188 kB
Cached:         822996 kB
SwapCached:      11284 kB
Active:         492736 kB
Inactive:       406632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1028392 kB
SwapTotal:     4192956 kB
SwapFree:      4146800 kB
Dirty:          118248 kB
Writeback:           0 kB
Mapped:          30184 kB
Slab:           113616 kB
Committed_AS:  7086576 kB
PageTables:       1872 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= 66427 MiB

End job on node29 on Sun May 13 01:08:41 UTC 2007