Trace number 1730209

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
ttsth-5-0 2009-03-19Signal 49.1915 48.5161

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-sat-grid-pbl-0300.sat05-1341.sat05-1341.reshuffled-07.cnf
MD5SUMe899c85929b7de69ebfb14f0dad93191
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.53577
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179701
Sum of the clauses size718198
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2300
Number of clauses of size 30
Number of clauses of size 4179399
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.69/0.74	c Command: HOME/ttsth-5-0 -num-threads 2 HOME/instance-1730209-1240757057.cnf 
0.69/0.74	c Using SATTIMEOUT of 1200
0.69/0.74	c Using SATRAM of 1800
0.69/0.74	c Size of subset node = 16
0.69/0.74	c Variables = 90300
0.69/0.74	c Clauses = 179701
0.69/0.74	c Literals = 718198
0.69/0.74	c Reduced size:
0.69/0.74	c Variables = 90300
0.69/0.74	c Clauses = 179699
0.69/0.74	c Literals = 718188
0.69/0.74	c a2
2.20/2.25	c a1
44.18/44.29	c Independent sub-problems = 1
44.18/44.29	c Sub-problem with 90298 variables and 179699 clauses
44.18/44.29	c using permutation method 4
44.18/44.29	c count = 1
44.18/44.29	c Ordering finished 44.130 seconds
44.18/44.29	c mapped 44.280 seconds
44.18/44.29	c permuted 44.280 seconds
44.18/44.29	c about to sort
44.28/44.39	c sorted
46.67/46.74	c clauses now 179699
46.67/46.74	c init finished 44.980 seconds
46.67/46.74	c tree built 46.720 seconds
46.67/46.74	c 
46.67/46.74	c PA progress                      | CPU progress Partial assignments | improvements      CPU time        PA/sec        nodes
46.67/46.74	c ---------------------------------|----------------------------------|------------------------------------------------------
46.67/46.74	c ................................ | ..........                       |                       46.7           0.0             
46.67/46.74	c ................................ | ..........                     1 |                       46.7           0.0             
46.67/46.74	c ................................ | ..........                     2 |                       46.7           0.0             
46.67/46.74	c ................................ | ..........                     3 |                       46.7           0.1             
46.67/46.74	c ................................ | ..........                     4 |                       46.7           0.1             
46.67/46.74	c ................................ | ..........                     5 |                       46.7           0.1             
46.67/46.74	c ................................ | ..........                  1000 | 14                    46.7          21.4           44
46.67/46.74	c ................................ | ..........                  2000 | 148                   46.7          42.8          370
47.84/47.39	c ................................ | ..........                138000 | 12422                 48.0        2875.0       549403

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: <no 's ' line found>

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1730209-1240757057/watcher-1730209-1240757057 -o /tmp/evaluation-result-1730209-1240757057/solver-1730209-1240757057 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/ttsth-5-0 -num-threads 2 HOME/instance-1730209-1240757057.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): 1800 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 1.09 3/64 26828
/proc/meminfo: memFree=1721856/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=932 CPUtime=0
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 133 0 0 0 0 0 0 0 18 0 1 0 103738910 954368 117 1992294400 134512640 135237372 4294956192 18446744073709551615 134732614 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 233 117 77 176 0 55 0

[startup+0.0730841 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 26828
/proc/meminfo: memFree=1721856/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=3084 CPUtime=0.06
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 642 0 0 0 6 0 0 0 18 0 1 0 103738910 3158016 626 1992294400 134512640 135237372 4294956192 18446744073709551615 134639534 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 771 627 78 176 0 593 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3084

[startup+0.101086 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 26828
/proc/meminfo: memFree=1721856/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=3876 CPUtime=0.09
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 850 0 0 0 9 0 0 0 18 0 1 0 103738910 3969024 834 1992294400 134512640 135237372 4294956192 18446744073709551615 134639534 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 969 834 78 176 0 791 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3876

[startup+0.301107 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 26828
/proc/meminfo: memFree=1721856/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=9932 CPUtime=0.29
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 2338 0 0 0 28 1 0 0 19 0 1 0 103738910 10170368 2322 1992294400 134512640 135237372 4294956192 18446744073709551615 134732614 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 2483 2322 78 176 0 2305 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9932

[startup+0.701151 s]
/proc/loadavg: 1.00 1.00 1.09 3/64 26828
/proc/meminfo: memFree=1721856/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=17852 CPUtime=0.69
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 4153 0 0 0 68 1 0 0 22 0 1 0 103738910 18280448 4137 1992294400 134512640 135237372 4294956192 18446744073709551615 134534272 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 4463 4137 78 176 0 4285 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17852

[startup+1.50124 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 26829
/proc/meminfo: memFree=1693048/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=46324 CPUtime=1.49
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 11281 0 0 0 145 4 0 0 25 0 1 0 103738910 47435776 11265 1992294400 134512640 135237372 4294956192 18446744073709551615 134749345 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 11581 11265 79 176 0 11403 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 46324

[startup+3.10141 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 26829
/proc/meminfo: memFree=1676664/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=47036 CPUtime=3.09
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 12167 0 0 0 305 4 0 0 25 0 1 0 103738910 48164864 11354 1992294400 134512640 135237372 4294956192 18446744073709551615 134555267 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 11759 11354 80 176 0 11581 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 47036

[startup+6.30176 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 26829
/proc/meminfo: memFree=1676088/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=47304 CPUtime=6.29
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 12249 0 0 0 625 4 0 0 25 0 1 0 103738910 48439296 11436 1992294400 134512640 135237372 4294956192 18446744073709551615 134555279 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 11826 11436 80 176 0 11648 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 47304

[startup+12.7024 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 26829
/proc/meminfo: memFree=1675512/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=47860 CPUtime=12.69
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 12382 0 0 0 1265 4 0 0 25 0 1 0 103738910 49008640 11569 1992294400 134512640 135237372 4294956192 18446744073709551615 134555279 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 11965 11569 80 176 0 11787 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 47860

[startup+25.5018 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 26829
/proc/meminfo: memFree=1674168/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=49484 CPUtime=25.48
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 12730 0 0 0 2544 4 0 0 25 0 1 0 103738910 50671616 11917 1992294400 134512640 135237372 4294956192 18446744073709551615 134600972 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 12371 11917 80 176 0 12193 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 49484

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

[startup+38.3022 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 26829
/proc/meminfo: memFree=1673400/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=50276 CPUtime=38.28
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 12991 0 0 0 3823 5 0 0 25 0 1 0 103738910 51482624 12178 1992294400 134512640 135237372 4294956192 18446744073709551615 134600975 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 12569 12178 80 176 0 12391 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 50276

[startup+44.7019 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 26829
/proc/meminfo: memFree=1672632/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=142932 CPUtime=44.68
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 36539 0 0 0 4455 13 0 0 25 0 1 0 103738910 146362368 35374 1992294400 134512640 135237372 4294956192 18446744073709551615 134732614 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 35733 35377 91 176 0 35555 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 142932

[startup+46.3011 s]
/proc/loadavg: 1.00 1.00 1.09 2/65 26829
/proc/meminfo: memFree=1509240/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=217168 CPUtime=46.28
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4194304 55396 0 0 0 4608 20 0 0 25 0 1 0 103738910 222380032 53926 1992294400 134512640 135237372 4294956192 18446744073709551615 134732614 0 0 4096 0 0 0 0 17 1 0 0
/proc/26828/statm: 54292 53926 94 176 0 54114 0
Current children cumulated CPU time (s) 46.28
Current children cumulated vsize (KiB) 217168

[startup+47.9013 s]
/proc/loadavg: 1.00 1.00 1.08 3/67 26831
/proc/meminfo: memFree=1491816/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=260260 CPUtime=48.56
/proc/26828/stat : 26828 (ttsth-5-0) D 26826 26828 26543 0 -1 4195332 64598 0 0 0 4790 66 0 0 24 0 3 0 103738910 266506240 63115 1992294400 134512640 135237372 4294956192 18446744073709551615 134629544 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/26828/statm: 65065 63115 98 176 0 64887 0
[pid=26828/tid=26830] ppid=26826 vsize=260260 CPUtime=1.13
/proc/26828/task/26830/stat : 26830 (ttsth-5-0) R 26826 26828 26543 0 -1 4195904 3147 0 0 0 70 43 0 0 16 0 3 0 103743584 266506240 63115 1992294400 134512640 135237372 4294956192 18446744073709551615 134586937 0 0 4096 0 0 0 0 -1 1 0 0
[pid=26828/tid=26831] ppid=26826 vsize=260260 CPUtime=0.7
/proc/26828/task/26831/stat : 26831 (ttsth-5-0) D 26826 26828 26543 0 -1 4195396 4273 0 0 0 68 2 0 0 15 0 3 0 103743584 266506240 63115 1992294400 134512640 135237372 4294956192 18446744073709551615 134546026 0 0 4096 0 18446744071563349243 0 0 -1 0 0 0
Current children cumulated CPU time (s) 48.56
Current children cumulated vsize (KiB) 260260

[startup+48.304 s]
/proc/loadavg: 1.00 1.00 1.08 2/67 26831
/proc/meminfo: memFree=1252392/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=260260 CPUtime=48.97
/proc/26828/stat : 26828 (ttsth-5-0) D 26826 26828 26543 0 -1 4195332 64598 0 0 0 4790 107 0 0 24 0 3 0 103738910 266506240 63115 1992294400 134512640 135237372 4294956192 18446744073709551615 134629544 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/26828/statm: 65065 63115 98 176 0 64887 0
[pid=26828/tid=26830] ppid=26826 vsize=260260 CPUtime=1.54
/proc/26828/task/26830/stat : 26830 (ttsth-5-0) R 26826 26828 26543 0 -1 4195904 3147 0 0 0 70 84 0 0 16 0 3 0 103743584 266506240 63115 1992294400 134512640 135237372 4294956192 18446744073709551615 134586937 0 0 4096 0 0 0 0 -1 1 0 0
[pid=26828/tid=26831] ppid=26826 vsize=260260 CPUtime=0.7
/proc/26828/task/26831/stat : 26831 (ttsth-5-0) D 26826 26828 26543 0 -1 4195396 4273 0 0 0 68 2 0 0 15 0 3 0 103743584 266506240 63115 1992294400 134512640 135237372 4294956192 18446744073709551615 134546026 0 0 4096 0 18446744071563349243 0 0 -1 0 0 0
Current children cumulated CPU time (s) 48.97
Current children cumulated vsize (KiB) 260260

[startup+48.5014 s]
/proc/loadavg: 1.00 1.00 1.08 2/67 26831
/proc/meminfo: memFree=1252392/2055920 swapFree=4192812/4192956
[pid=26828] ppid=26826 vsize=0 CPUtime=49.16
/proc/26828/stat : 26828 (ttsth-5-0) R 26826 26828 26543 0 -1 4195332 64917 0 0 0 4790 126 0 0 23 0 1 0 103738910 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/26828/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 49.16
Current children cumulated vsize (KiB) 0

Child ended because it received signal 11 (SIGSEGV)
Child dumped core
Real time (s): 48.5161
CPU time (s): 49.1915
CPU user time (s): 47.9077
CPU system time (s): 1.2838
CPU usage (%): 101.392
Max. virtual memory (cumulated for all children) (KiB): 260260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 47.9077
system time used= 1.2838
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 64917
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= 422
involuntary context switches= 104

runsolver used 0.036994 second user time and 0.120981 second system time

The end

Launcher Data 

Begin job on node21 at 2009-04-26 16:44:17
IDJOB=1730209
IDBENCH=24723
IDSOLVER=549
FILE ID=node21/1730209-1240757057
PBS_JOBID= 9187104
Free space on /tmp= 66340 MiB

SOLVER NAME= ttsth-5-0 2009-03-19
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-sat-grid-pbl-0300.sat05-1341.sat05-1341.reshuffled-07.cnf
COMMAND LINE= HOME/ttsth-5-0 -num-threads MAXNBTHREAD BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1730209-1240757057/watcher-1730209-1240757057 -o /tmp/evaluation-result-1730209-1240757057/solver-1730209-1240757057 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/ttsth-5-0 -num-threads 2 HOME/instance-1730209-1240757057.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= e899c85929b7de69ebfb14f0dad93191
RANDOM SEED=137510009

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:       1722336 kB
Buffers:         33592 kB
Cached:         211276 kB
SwapCached:          0 kB
Active:          77588 kB
Inactive:       181180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1722336 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5644 kB
Writeback:           0 kB
Mapped:          23648 kB
Slab:            60896 kB
Committed_AS:   409452 kB
PageTables:       1376 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= 66092 MiB
End job on node21 at 2009-04-26 16:45:06