Trace number 370084

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
CMUSAT 2007-02-08UNSAT 2.47362 2.47552

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00150.sat05-1328.reshuffled-07.cnf
MD5SUMb89dce22e5369c8081062018c6eea272
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.37179
Satisfiable
(Un)Satisfiability was proved
Number of variables552
Number of clauses30977
Sum of the clauses size265108
Maximum clause length11
Minimum clause length1
Number of clauses of size 14
Number of clauses of size 29
Number of clauses of size 3112
Number of clauses of size 4194
Number of clauses of size 5765
Number of clauses of size over 529893

Solver Data (download as text)

0.00/0.00	c Pre-processing provided 0 assignments
0.00/0.00	c |  Number of variables:  552                                                  |
0.00/0.07	c |  Number of clauses:    30977                                                |
2.39/2.47	c |  Parsing time:         0.07         sec                                       |
2.39/2.47	c #varS 552 #clauseS 35458
2.39/2.47	c REMAP internally 1
2.39/2.47	c 
2.39/2.47	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node39/watcher-370084-1177551927 -o ROOT/results/node39/solver-370084-1177551927 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370084-1177551927/cmusat /tmp/evaluation/370084-1177551927/instance-370084-1177551927.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: 0.81 0.93 0.90 3/77 10830
/proc/meminfo: memFree=1702656/2055920 swapFree=4159384/4192956
[pid=10830] ppid=10828 vsize=2316 CPUtime=0
/proc/10830/stat : 10830 (cmusat) R 10828 10830 8942 0 -1 4194304 423 0 0 0 0 0 0 0 18 0 1 0 203104849 2371584 407 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/10830/statm: 579 407 96 243 0 333 0

[startup+0.0792039 s]
/proc/loadavg: 0.81 0.93 0.90 3/77 10830
/proc/meminfo: memFree=1702656/2055920 swapFree=4159384/4192956
[pid=10830] ppid=10828 vsize=5620 CPUtime=0.07
/proc/10830/stat : 10830 (cmusat) R 10828 10830 8942 0 -1 4194304 1246 0 0 0 7 0 0 0 18 0 1 0 203104849 5754880 1230 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134530328 0 0 4096 35 0 0 0 17 1 0 0
/proc/10830/statm: 1405 1230 107 243 0 1159 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5620

[startup+0.101208 s]
/proc/loadavg: 0.81 0.93 0.90 3/77 10830
/proc/meminfo: memFree=1702656/2055920 swapFree=4159384/4192956
[pid=10830] ppid=10828 vsize=5620 CPUtime=0.09
/proc/10830/stat : 10830 (cmusat) R 10828 10830 8942 0 -1 4194304 1246 0 0 0 9 0 0 0 18 0 1 0 203104849 5754880 1230 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134530328 0 0 4096 35 0 0 0 17 1 0 0
/proc/10830/statm: 1405 1230 107 243 0 1159 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5620

[startup+0.301241 s]
/proc/loadavg: 0.81 0.93 0.90 3/77 10830
/proc/meminfo: memFree=1702656/2055920 swapFree=4159384/4192956
[pid=10830] ppid=10828 vsize=5620 CPUtime=0.29
/proc/10830/stat : 10830 (cmusat) R 10828 10830 8942 0 -1 4194304 1246 0 0 0 29 0 0 0 19 0 1 0 203104849 5754880 1230 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134530549 0 0 4096 35 0 0 0 17 1 0 0
/proc/10830/statm: 1405 1230 107 243 0 1159 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5620

[startup+0.70131 s]
/proc/loadavg: 0.81 0.93 0.90 3/77 10830
/proc/meminfo: memFree=1702656/2055920 swapFree=4159384/4192956
[pid=10830] ppid=10828 vsize=6484 CPUtime=0.69
/proc/10830/stat : 10830 (cmusat) R 10828 10830 8942 0 -1 4194304 1456 0 0 0 69 0 0 0 22 0 1 0 203104849 6639616 1440 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134530470 0 0 4096 35 0 0 0 17 1 0 0
/proc/10830/statm: 1621 1440 108 243 0 1375 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6484

[startup+1.50145 s]
/proc/loadavg: 0.83 0.93 0.90 2/78 10831
/proc/meminfo: memFree=1697336/2055920 swapFree=4159384/4192956
[pid=10830] ppid=10828 vsize=6932 CPUtime=1.49
/proc/10830/stat : 10830 (cmusat) R 10828 10830 8942 0 -1 4194304 1542 0 0 0 149 0 0 0 25 0 1 0 203104849 7098368 1526 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134530549 0 0 4096 35 0 0 0 17 1 0 0
/proc/10830/statm: 1733 1526 108 243 0 1487 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6932

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

[startup+1.90151 s]
/proc/loadavg: 0.83 0.93 0.90 2/78 10831
/proc/meminfo: memFree=1697336/2055920 swapFree=4159384/4192956
[pid=10830] ppid=10828 vsize=7196 CPUtime=1.89
/proc/10830/stat : 10830 (cmusat) R 10828 10830 8942 0 -1 4194304 1659 0 0 0 189 0 0 0 25 0 1 0 203104849 7368704 1643 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134530778 0 0 4096 35 0 0 0 17 1 0 0
/proc/10830/statm: 1799 1643 108 243 0 1553 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 7196

[startup+2.30158 s]
/proc/loadavg: 0.83 0.93 0.90 2/78 10831
/proc/meminfo: memFree=1695928/2055920 swapFree=4159384/4192956
[pid=10830] ppid=10828 vsize=8072 CPUtime=2.29
/proc/10830/stat : 10830 (cmusat) R 10828 10830 8942 0 -1 4194304 1848 0 0 0 229 0 0 0 25 0 1 0 203104849 8265728 1832 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 134522187 0 0 4096 35 0 0 0 17 1 0 0
/proc/10830/statm: 2018 1832 108 243 0 1772 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 8072

[startup+2.4016 s]
/proc/loadavg: 0.83 0.93 0.90 2/78 10831
/proc/meminfo: memFree=1695928/2055920 swapFree=4159384/4192956
[pid=10830] ppid=10828 vsize=8492 CPUtime=2.39
/proc/10830/stat : 10830 (cmusat) R 10828 10830 8942 0 -1 4194304 2231 0 0 0 239 0 0 0 25 0 1 0 203104849 8695808 1967 18446744073709551615 134512640 135508737 4294956672 18446744073709551615 135107969 0 0 4096 35 0 0 0 17 1 0 0
/proc/10830/statm: 2123 1967 111 243 0 1877 0
Current children cumulated CPU time (s) 2.39
Current children cumulated vsize (KiB) 8492

Child status: 20
Real time (s): 2.47552
CPU time (s): 2.47362
CPU user time (s): 2.46263
CPU system time (s): 0.010998
CPU usage (%): 99.9235
Max. virtual memory (cumulated for all children) (KiB): 8492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.46263
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= 2234
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 0.000999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Thu Apr 26 01:45:28 UTC 2007

IDJOB= 370084
IDBENCH= 24588
IDSOLVER= 182
FILE ID= node39/370084-1177551927

PBS_JOBID= 4696584

Free space on /tmp= 66486 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00150.sat05-1328.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/370084-1177551927/cmusat /tmp/evaluation/370084-1177551927/instance-370084-1177551927.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-370084-1177551927 -o ROOT/results/node39/solver-370084-1177551927 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370084-1177551927/cmusat /tmp/evaluation/370084-1177551927/instance-370084-1177551927.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  b89dce22e5369c8081062018c6eea272

RANDOM SEED= 367852980

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.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		: 3000.256
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		: 3000.256
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:       1703192 kB
Buffers:         39880 kB
Cached:         211492 kB
SwapCached:      13964 kB
Active:         186404 kB
Inactive:       100836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1703192 kB
SwapTotal:     4192956 kB
SwapFree:      4159384 kB
Dirty:            3824 kB
Writeback:           0 kB
Mapped:          42768 kB
Slab:            50684 kB
Committed_AS:  2041164 kB
PageTables:       2040 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= 66486 MiB

End job on node39 on Thu Apr 26 01:45:31 UTC 2007