Trace number 1725525

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
SATzilla2009_C 2009-03-22UNSAT 1.24581 1.24619

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
MD5SUM35f2aba974a0579245ba9b669f0484ae
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.063989
Satisfiable
(Un)Satisfiability was proved
Number of variables6480
Number of clauses12722
Sum of the clauses size50722
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 280
Number of clauses of size 30
Number of clauses of size 412640
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.19/1.24	c SATzilla is building models for class 2
1.19/1.24	c run presolver march_dl2004 for 5 seconds ... 
1.19/1.24	c Bin: Executing march_dl2004
1.19/1.24	c spawning binary file with 5 seconds ...
1.19/1.24	c child exited successfully
1.19/1.24	c march_dl2004 returned code 20.
1.19/1.24	s UNSATISFIABLE
1.19/1.24	c SATZILLA_TIME=1.240000

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-1725525-1240705220/watcher-1725525-1240705220 -o /tmp/evaluation-result-1725525-1240705220/solver-1725525-1240705220 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_C HOME/instance-1725525-1240705220.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 1.00 3/67 5314
/proc/meminfo: memFree=1721232/2055920 swapFree=4192812/4192956
[pid=5314] ppid=5312 vsize=2056 CPUtime=0
/proc/5314/stat : 5314 (SATzilla2009_C) S 5312 5314 4595 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 98548212 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5314/statm: 514 112 96 399 0 111 0
[pid=5315] ppid=5314 vsize=1116 CPUtime=0
/proc/5315/stat : 5315 (march_dl2004) R 5314 5314 4595 0 -1 4194304 184 0 0 0 0 0 0 0 19 0 1 0 98548212 1142784 179 1992294400 134512640 134996440 4294956176 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 0 0 0
/proc/5315/statm: 279 179 50 118 0 158 0

[startup+0.058963 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 5314
/proc/meminfo: memFree=1721232/2055920 swapFree=4192812/4192956
[pid=5314] ppid=5312 vsize=2056 CPUtime=0
/proc/5314/stat : 5314 (SATzilla2009_C) S 5312 5314 4595 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 98548212 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5314/statm: 514 112 96 399 0 111 0
[pid=5315] ppid=5314 vsize=2624 CPUtime=0.05
/proc/5315/stat : 5315 (march_dl2004) R 5314 5314 4595 0 -1 4194304 1000 0 0 0 5 0 0 0 19 0 1 0 98548212 2686976 532 1992294400 134512640 134996440 4294956176 18446744073709551615 134543085 0 0 8392704 0 0 0 0 17 0 0 0
/proc/5315/statm: 656 532 55 118 0 535 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4680

[startup+0.101966 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 5314
/proc/meminfo: memFree=1721232/2055920 swapFree=4192812/4192956
[pid=5314] ppid=5312 vsize=2056 CPUtime=0
/proc/5314/stat : 5314 (SATzilla2009_C) S 5312 5314 4595 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 98548212 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5314/statm: 514 112 96 399 0 111 0
[pid=5315] ppid=5314 vsize=4236 CPUtime=0.09
/proc/5315/stat : 5315 (march_dl2004) R 5314 5314 4595 0 -1 4194304 2623 0 0 0 9 0 0 0 19 0 1 0 98548212 4337664 907 1992294400 134512640 134996440 4294956176 18446744073709551615 134542421 0 0 8392704 0 0 0 0 17 0 0 0
/proc/5315/statm: 1059 907 63 118 0 938 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6292

[startup+0.301983 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 5314
/proc/meminfo: memFree=1721232/2055920 swapFree=4192812/4192956
[pid=5314] ppid=5312 vsize=2056 CPUtime=0
/proc/5314/stat : 5314 (SATzilla2009_C) S 5312 5314 4595 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 98548212 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5314/statm: 514 112 96 399 0 111 0
[pid=5315] ppid=5314 vsize=4744 CPUtime=0.29
/proc/5315/stat : 5315 (march_dl2004) R 5314 5314 4595 0 -1 4194304 2889 0 0 0 29 0 0 0 21 0 1 0 98548212 4857856 1046 1992294400 134512640 134996440 4294956176 18446744073709551615 134583116 0 0 8392704 0 0 0 0 17 0 0 0
/proc/5315/statm: 1186 1046 67 118 0 1065 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6800

[startup+0.702019 s]
/proc/loadavg: 1.00 1.00 1.00 3/67 5314
/proc/meminfo: memFree=1721232/2055920 swapFree=4192812/4192956
[pid=5314] ppid=5312 vsize=2056 CPUtime=0
/proc/5314/stat : 5314 (SATzilla2009_C) S 5312 5314 4595 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 98548212 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5314/statm: 514 112 96 399 0 111 0
[pid=5315] ppid=5314 vsize=4744 CPUtime=0.69
/proc/5315/stat : 5315 (march_dl2004) R 5314 5314 4595 0 -1 4194304 2900 0 0 0 69 0 0 0 25 0 1 0 98548212 4857856 1057 1992294400 134512640 134996440 4294956176 18446744073709551615 134583568 0 0 8392704 0 0 0 0 17 0 0 0
/proc/5315/statm: 1186 1057 67 118 0 1065 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6800

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

[startup+1.10606 s]
/proc/loadavg: 1.00 1.00 1.00 2/69 5316
/proc/meminfo: memFree=1712384/2055920 swapFree=4192812/4192956
[pid=5314] ppid=5312 vsize=2056 CPUtime=0
/proc/5314/stat : 5314 (SATzilla2009_C) S 5312 5314 4595 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 98548212 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5314/statm: 514 112 96 399 0 111 0
[pid=5315] ppid=5314 vsize=9852 CPUtime=1.09
/proc/5315/stat : 5315 (march_dl2004) R 5314 5314 4595 0 -1 4194304 4199 0 0 0 102 7 0 0 25 0 1 0 98548212 10088448 2270 1992294400 134512640 134996440 4294956176 18446744073709551615 134675049 0 0 8392704 0 0 0 0 17 0 0 0
/proc/5315/statm: 2463 2270 72 118 0 2342 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 11908

[startup+1.20106 s]
/proc/loadavg: 1.00 1.00 1.00 2/69 5316
/proc/meminfo: memFree=1712384/2055920 swapFree=4192812/4192956
[pid=5314] ppid=5312 vsize=2056 CPUtime=0
/proc/5314/stat : 5314 (SATzilla2009_C) S 5312 5314 4595 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 98548212 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/5314/statm: 514 112 96 399 0 111 0
[pid=5315] ppid=5314 vsize=9592 CPUtime=1.19
/proc/5315/stat : 5315 (march_dl2004) R 5314 5314 4595 0 -1 4194304 4199 0 0 0 108 11 0 0 25 0 1 0 98548212 9822208 2227 1992294400 134512640 134996440 4294956176 18446744073709551615 134544086 0 0 8392704 0 0 0 0 17 0 0 0
/proc/5315/statm: 2398 2227 72 118 0 2277 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 11648

Child status: 20
Real time (s): 1.24619
CPU time (s): 1.24581
CPU user time (s): 1.12483
CPU system time (s): 0.120981
CPU usage (%): 99.9697
Max. virtual memory (cumulated for all children) (KiB): 11908

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.12483
system time used= 0.120981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4565
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= 4
involuntary context switches= 9

runsolver used 0.004999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node68 at 2009-04-26 02:20:20
IDJOB=1725525
IDBENCH=24589
IDSOLVER=527
FILE ID=node68/1725525-1240705220
PBS_JOBID= 9186743
Free space on /tmp= 66556 MiB

SOLVER NAME= SATzilla2009_C 2009-03-22
BENCH NAME= SAT07/crafted/Medium/contest05/pebbling/unsat-grid-pbl-0080.sat05-1344.reshuffled-07.cnf
COMMAND LINE= HOME/SATzilla2009_C BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725525-1240705220/watcher-1725525-1240705220 -o /tmp/evaluation-result-1725525-1240705220/solver-1725525-1240705220 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_C HOME/instance-1725525-1240705220.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 35f2aba974a0579245ba9b669f0484ae
RANDOM SEED=1901998820

node68.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		: 3000.223
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		: 3000.223
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:       1721720 kB
Buffers:         37340 kB
Cached:         213436 kB
SwapCached:        144 kB
Active:         111408 kB
Inactive:       155880 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1721720 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           31748 kB
Writeback:           0 kB
Mapped:          26464 kB
Slab:            52540 kB
Committed_AS:   276596 kB
PageTables:       1560 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= 66524 MiB
End job on node68 at 2009-04-26 02:20:22