Trace number 1785366

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
clasp 1.2.0-SAT09-32UNSAT 286.262 286.338

General information on the benchmark

Namecrafted/Difficult/contest-02-03-04/
contest02-Mat26.sat05-457.reshuffled-07.cnf
MD5SUM3d4fadc8af17bc65dbe7fef013825ed5
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark249.137
Satisfiable
(Un)Satisfiability was proved
Number of variables744
Number of clauses2464
Sum of the clauses size6432
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2960
Number of clauses of size 31504
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

286.21/286.33	c clasp version 1.2.0-SAT09 
286.21/286.33	c Reading from ...909117/instance-1785366-1241909117.cnf
286.21/286.33	c Reading      : Done(0.000s)
286.21/286.33	c Preprocessing: |-\Done(0.010s)
286.21/286.33	c Solving...
286.21/286.33	
286.21/286.33	c Models    : 0     
286.21/286.33	c Time         : 286.290s (Solve: 286.280s)
286.21/286.33	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1785366-1241909117/watcher-1785366-1241909117 -o /tmp/evaluation-result-1785366-1241909117/solver-1785366-1241909117 -C 5000 -W 6000 -M 1800 HOME/clasp --file=HOME/instance-1785366-1241909117.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

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): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28847
/proc/meminfo: memFree=1838024/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=1960 CPUtime=0
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 268 0 0 0 0 0 0 0 18 0 1 0 218944893 2007040 247 1992294400 134512640 136057169 4294956160 18446744073709551615 134776144 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 490 247 165 377 0 110 0

[startup+0.100752 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28847
/proc/meminfo: memFree=1838024/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=2092 CPUtime=0.09
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 339 0 0 0 9 0 0 0 18 0 1 0 218944893 2142208 318 1992294400 134512640 136057169 4294956160 18446744073709551615 134823876 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 523 318 182 377 0 143 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2092

[startup+0.201761 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28847
/proc/meminfo: memFree=1838024/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=2224 CPUtime=0.19
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 358 0 0 0 19 0 0 0 18 0 1 0 218944893 2277376 337 1992294400 134512640 136057169 4294956160 18446744073709551615 134828317 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 556 337 182 377 0 176 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2224

[startup+0.301771 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28847
/proc/meminfo: memFree=1838024/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=2224 CPUtime=0.29
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 368 0 0 0 29 0 0 0 19 0 1 0 218944893 2277376 347 1992294400 134512640 136057169 4294956160 18446744073709551615 134823873 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 556 347 182 377 0 176 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2224

[startup+0.701815 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28847
/proc/meminfo: memFree=1838024/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=2356 CPUtime=0.69
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 402 0 0 0 69 0 0 0 22 0 1 0 218944893 2412544 381 1992294400 134512640 136057169 4294956160 18446744073709551615 134823406 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 589 381 182 377 0 209 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2356

[startup+1.5019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1837056/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=2488 CPUtime=1.49
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 432 0 0 0 149 0 0 0 25 0 1 0 218944893 2547712 411 1992294400 134512640 136057169 4294956160 18446744073709551615 134825006 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 622 411 182 377 0 242 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2488

[startup+3.10107 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1836800/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=2752 CPUtime=3.09
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 484 0 0 0 309 0 0 0 25 0 1 0 218944893 2818048 463 1992294400 134512640 136057169 4294956160 18446744073709551615 134649358 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 688 463 182 377 0 308 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2752

[startup+6.30142 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1836416/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=3020 CPUtime=6.29
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 553 0 0 0 629 0 0 0 25 0 1 0 218944893 3092480 532 1992294400 134512640 136057169 4294956160 18446744073709551615 134618307 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 755 532 182 377 0 375 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3020

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1835776/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=3424 CPUtime=12.69
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 658 0 0 0 1269 0 0 0 25 0 1 0 218944893 3506176 637 1992294400 134512640 136057169 4294956160 18446744073709551615 134823882 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 856 637 182 377 0 476 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3424

[startup+25.5015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1835328/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=3840 CPUtime=25.49
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 771 0 0 0 2549 0 0 0 25 0 1 0 218944893 3932160 750 1992294400 134512640 136057169 4294956160 18446744073709551615 134823867 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 960 750 182 377 0 580 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3840

[startup+51.1013 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1834560/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=4660 CPUtime=51.07
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 973 0 0 0 5107 0 0 0 25 0 1 0 218944893 4771840 952 1992294400 134512640 136057169 4294956160 18446744073709551615 134828227 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1165 952 182 377 0 785 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 4660

[startup+102.302 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1833856/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=5468 CPUtime=102.27
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 1155 0 0 0 10226 1 0 0 25 0 1 0 218944893 5599232 1134 1992294400 134512640 136057169 4294956160 18446744073709551615 134618275 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1367 1134 182 377 0 987 0
Current children cumulated CPU time (s) 102.27
Current children cumulated vsize (KiB) 5468

[startup+162.301 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1833088/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=6180 CPUtime=162.25
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 1324 0 0 0 16224 1 0 0 25 0 1 0 218944893 6328320 1303 1992294400 134512640 136057169 4294956160 18446744073709551615 134823406 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1545 1303 182 377 0 1165 0
Current children cumulated CPU time (s) 162.25
Current children cumulated vsize (KiB) 6180

[startup+222.306 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1832640/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=6612 CPUtime=222.24
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 1442 0 0 0 22223 1 0 0 25 0 1 0 218944893 6770688 1421 1992294400 134512640 136057169 4294956160 18446744073709551615 134618347 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1653 1421 182 377 0 1273 0
Current children cumulated CPU time (s) 222.24
Current children cumulated vsize (KiB) 6612

[startup+282.301 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1832256/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=7040 CPUtime=282.21
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 1539 0 0 0 28220 1 0 0 25 0 1 0 218944893 7208960 1518 1992294400 134512640 136057169 4294956160 18446744073709551615 134618161 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1760 1518 182 377 0 1380 0
Current children cumulated CPU time (s) 282.21
Current children cumulated vsize (KiB) 7040

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

[startup+284.803 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1832256/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=7040 CPUtime=284.71
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 1539 0 0 0 28470 1 0 0 25 0 1 0 218944893 7208960 1518 1992294400 134512640 136057169 4294956160 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1760 1518 182 377 0 1380 0
Current children cumulated CPU time (s) 284.71
Current children cumulated vsize (KiB) 7040

[startup+285.602 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1832256/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=7000 CPUtime=285.51
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 1539 0 0 0 28550 1 0 0 25 0 1 0 218944893 7168000 1518 1992294400 134512640 136057169 4294956160 18446744073709551615 134618132 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1750 1518 182 377 0 1370 0
Current children cumulated CPU time (s) 285.51
Current children cumulated vsize (KiB) 7000

[startup+286.002 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1832256/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=7000 CPUtime=285.92
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 1539 0 0 0 28591 1 0 0 25 0 1 0 218944893 7168000 1518 1992294400 134512640 136057169 4294956160 18446744073709551615 134618141 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1750 1518 182 377 0 1370 0
Current children cumulated CPU time (s) 285.92
Current children cumulated vsize (KiB) 7000

[startup+286.202 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1832256/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=7000 CPUtime=286.11
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 1539 0 0 0 28610 1 0 0 25 0 1 0 218944893 7168000 1518 1992294400 134512640 136057169 4294956160 18446744073709551615 134813025 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1750 1518 182 377 0 1370 0
Current children cumulated CPU time (s) 286.11
Current children cumulated vsize (KiB) 7000

[startup+286.302 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28848
/proc/meminfo: memFree=1832256/2055920 swapFree=4180160/4192956
[pid=28847] ppid=28845 vsize=7000 CPUtime=286.21
/proc/28847/stat : 28847 (clasp) R 28845 28847 28772 0 -1 4194304 1539 0 0 0 28620 1 0 0 25 0 1 0 218944893 7168000 1518 1992294400 134512640 136057169 4294956160 18446744073709551615 134615618 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28847/statm: 1750 1518 182 377 0 1370 0
Current children cumulated CPU time (s) 286.21
Current children cumulated vsize (KiB) 7000

Child status: 20
Real time (s): 286.338
CPU time (s): 286.262
CPU user time (s): 286.243
CPU system time (s): 0.018997
CPU usage (%): 99.9736
Max. virtual memory (cumulated for all children) (KiB): 7040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 286.243
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1544
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= 2
involuntary context switches= 705

runsolver used 0.269958 second user time and 0.528919 second system time

The end

Launcher Data 

Begin job on node21 at 2009-05-10 00:45:17
IDJOB=1785366
IDBENCH=24755
IDSOLVER=637
FILE ID=node21/1785366-1241909117
PBS_JOBID= 9264824
Free space on /tmp= 65984 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT07/crafted/Difficult/contest-02-03-04/contest02-Mat26.sat05-457.reshuffled-07.cnf
COMMAND LINE= HOME/clasp --file=BENCHNAME --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1785366-1241909117/watcher-1785366-1241909117 -o /tmp/evaluation-result-1785366-1241909117/solver-1785366-1241909117 -C 5000 -W 6000 -M 1800  HOME/clasp --file=HOME/instance-1785366-1241909117.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 3d4fadc8af17bc65dbe7fef013825ed5
RANDOM SEED=904147573

node21.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.233
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		: 3000.233
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:       1838440 kB
Buffers:         46160 kB
Cached:         101912 kB
SwapCached:       7036 kB
Active:          60328 kB
Inactive:        97692 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1838440 kB
SwapTotal:     4192956 kB
SwapFree:      4180160 kB
Dirty:            1872 kB
Writeback:           0 kB
Mapped:          15032 kB
Slab:            45508 kB
Committed_AS:   809692 kB
PageTables:       1380 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= 65980 MiB
End job on node21 at 2009-05-10 00:50:04