Trace number 332902

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
minimarch 2007-02-08UNSAT 1.73973 1.74185

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00200.sat05-1329.reshuffled-07.cnf
MD5SUM2ed4f9474a813c543de526c0ca3729de
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.02384
Satisfiable
(Un)Satisfiability was proved
Number of variables725
Number of clauses22684
Sum of the clauses size194068
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 219
Number of clauses of size 3197
Number of clauses of size 4381
Number of clauses of size 51017
Number of clauses of size over 521068

Solver Data (download as text)

0.00/0.00	This is MiniMarch, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  725                                                  |
0.00/0.00	|  Number of clauses:    22684                                                |
0.09/0.10	|  Parsing time:         0.10         s                                       |
1.69/1.73	lookaheads            : 0
1.69/1.73	variable balance      : 0.00
1.69/1.73	restarts              : 0
1.69/1.73	conflicts             : 0              (0 /sec)
1.69/1.73	decisions             : 0              ( nan % random) (0 /sec)
1.69/1.73	decision = positive   : 0
1.69/1.73	decision = negative   : 0
1.69/1.73	propagations          : 36             (21 /sec)
1.69/1.73	conflict literals     : 0              ( nan % deleted)
1.69/1.73	Memory used           : 7.57 MB
1.69/1.73	CPU time              : 1.72874 s
1.69/1.73	
1.69/1.73	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node3/watcher-332902-1173495165 -o ROOT/results/node3/solver-332902-1173495165 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332902-1173495165/minimarch /tmp/evaluation/332902-1173495165/instance-332902-1173495165.cnf 

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): 2400 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: 1.00 1.00 0.98 3/77 23629
/proc/meminfo: memFree=1570600/2055920 swapFree=4158660/4192956
[pid=23629] ppid=23627 vsize=1868 CPUtime=0
/proc/23629/stat : 23629 (minimarch) R 23627 23629 23124 0 -1 4194304 348 0 0 0 0 0 0 0 18 0 1 0 369471404 1912832 332 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/23629/statm: 467 333 51 132 0 332 0

[startup+0.041641 s]
/proc/loadavg: 1.00 1.00 0.98 3/77 23629
/proc/meminfo: memFree=1570600/2055920 swapFree=4158660/4192956
[pid=23629] ppid=23627 vsize=3508 CPUtime=0.03
/proc/23629/stat : 23629 (minimarch) R 23627 23629 23124 0 -1 4194304 763 0 0 0 3 0 0 0 18 0 1 0 369471404 3592192 747 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/23629/statm: 877 748 51 132 0 742 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3508

[startup+0.101645 s]
/proc/loadavg: 1.00 1.00 0.98 3/77 23629
/proc/meminfo: memFree=1570600/2055920 swapFree=4158660/4192956
[pid=23629] ppid=23627 vsize=4320 CPUtime=0.09
/proc/23629/stat : 23629 (minimarch) R 23627 23629 23124 0 -1 4194304 934 0 0 0 9 0 0 0 18 0 1 0 369471404 4423680 918 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134523042 0 0 4096 3 0 0 0 17 1 0 0
/proc/23629/statm: 1080 918 51 132 0 945 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4320

[startup+0.301662 s]
/proc/loadavg: 1.00 1.00 0.98 3/77 23629
/proc/meminfo: memFree=1570600/2055920 swapFree=4158660/4192956
[pid=23629] ppid=23627 vsize=5172 CPUtime=0.29
/proc/23629/stat : 23629 (minimarch) R 23627 23629 23124 0 -1 4194304 1165 0 0 0 29 0 0 0 19 0 1 0 369471404 5296128 1149 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134531528 0 0 4096 3 0 0 0 17 1 0 0
/proc/23629/statm: 1293 1149 63 132 0 1158 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5172

[startup+0.701694 s]
/proc/loadavg: 1.00 1.00 0.98 3/77 23629
/proc/meminfo: memFree=1570600/2055920 swapFree=4158660/4192956
[pid=23629] ppid=23627 vsize=5916 CPUtime=0.69
/proc/23629/stat : 23629 (minimarch) R 23627 23629 23124 0 -1 4194304 1358 0 0 0 69 0 0 0 22 0 1 0 369471404 6057984 1342 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134531491 0 0 4096 3 0 0 0 17 1 0 0
/proc/23629/statm: 1479 1342 63 132 0 1344 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5916

[startup+1.50176 s]
/proc/loadavg: 1.00 1.00 0.98 2/78 23630
/proc/meminfo: memFree=1565024/2055920 swapFree=4158660/4192956
[pid=23629] ppid=23627 vsize=7140 CPUtime=1.49
/proc/23629/stat : 23629 (minimarch) R 23627 23629 23124 0 -1 4194304 1674 0 0 0 149 0 0 0 25 0 1 0 369471404 7311360 1658 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134531329 0 0 4096 3 0 0 0 17 1 0 0
/proc/23629/statm: 1785 1658 63 132 0 1650 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7140

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

[startup+1.70178 s]
/proc/loadavg: 1.00 1.00 0.98 2/78 23630
/proc/meminfo: memFree=1565024/2055920 swapFree=4158660/4192956
[pid=23629] ppid=23627 vsize=7668 CPUtime=1.69
/proc/23629/stat : 23629 (minimarch) R 23627 23629 23124 0 -1 4194304 1749 0 0 0 169 0 0 0 25 0 1 0 369471404 7852032 1733 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134531528 0 0 4096 3 0 0 0 17 1 0 0
/proc/23629/statm: 1917 1733 63 132 0 1782 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 7668

Child status: 20
Real time (s): 1.74185
CPU time (s): 1.73973
CPU user time (s): 1.72874
CPU system time (s): 0.010998
CPU usage (%): 99.8788
Max. virtual memory (cumulated for all children) (KiB): 7668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.72874
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1785
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= 3

runsolver used 0.006998 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Sat Mar 10 02:52:45 UTC 2007

IDJOB= 332902
IDBENCH= 24591
IDSOLVER= 110
FILE ID= node3/332902-1173495165

PBS_JOBID= 4101097

Free space on /tmp= 66493 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00200.sat05-1329.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/332902-1173495165/minimarch /tmp/evaluation/332902-1173495165/instance-332902-1173495165.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-332902-1173495165 -o ROOT/results/node3/solver-332902-1173495165 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332902-1173495165/minimarch /tmp/evaluation/332902-1173495165/instance-332902-1173495165.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  2ed4f9474a813c543de526c0ca3729de

RANDOM SEED= 611269456

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.241
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		: 3000.241
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:       1571072 kB
Buffers:         47548 kB
Cached:         348228 kB
SwapCached:       2568 kB
Active:         183448 kB
Inactive:       235436 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1571072 kB
SwapTotal:     4192956 kB
SwapFree:      4158660 kB
Dirty:            3236 kB
Writeback:           0 kB
Mapped:          30812 kB
Slab:            51604 kB
Committed_AS:  1493636 kB
PageTables:       1656 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= 66493 MiB

End job on node3 on Sat Mar 10 02:52:47 UTC 2007