Trace number 332795

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
MiraXT v2UNSAT 2.23266 2.23394

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 benchmark1.37979
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 Starting MiraXTv2...
2.20/2.23	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.4 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-332795-1178896808 -o ROOT/results/node2/solver-332795-1178896808 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332795-1178896808/MiraXTv2_dyn /tmp/evaluation/332795-1178896808/instance-332795-1178896808.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: 0.77 0.98 1.04 3/77 8350
/proc/meminfo: memFree=1704536/2055920 swapFree=4148880/4192956
[pid=8350] ppid=8348 vsize=3788 CPUtime=0
/proc/8350/stat : 8350 (MiraXTv2_dyn) R 8348 8350 6272 0 -1 4194304 450 0 0 0 0 0 0 0 18 0 1 0 365718580 3878912 425 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/8350/statm: 947 434 202 20 0 305 0

[startup+0.017952 s]
/proc/loadavg: 0.77 0.98 1.04 3/77 8350
/proc/meminfo: memFree=1704536/2055920 swapFree=4148880/4192956
[pid=8350] ppid=8348 vsize=4456 CPUtime=0.01
/proc/8350/stat : 8350 (MiraXTv2_dyn) R 8348 8350 6272 0 -1 4194304 685 0 0 0 1 0 0 0 18 0 1 0 365718580 4562944 660 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 10970747 0 0 4096 0 0 0 0 17 0 0 0
/proc/8350/statm: 1114 661 206 20 0 472 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4456

[startup+0.102971 s]
/proc/loadavg: 0.77 0.98 1.04 3/77 8350
/proc/meminfo: memFree=1704536/2055920 swapFree=4148880/4192956
[pid=8350] ppid=8348 vsize=7256 CPUtime=0.09
/proc/8350/stat : 8350 (MiraXTv2_dyn) R 8348 8350 6272 0 -1 4194304 1377 0 0 0 9 0 0 0 18 0 1 0 365718580 7430144 1352 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 134583681 0 0 4096 0 0 0 0 17 0 0 0
/proc/8350/statm: 1814 1352 207 20 0 1172 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7256

[startup+0.30198 s]
/proc/loadavg: 0.77 0.98 1.04 3/77 8350
/proc/meminfo: memFree=1704536/2055920 swapFree=4148880/4192956
[pid=8350] ppid=8348 vsize=7256 CPUtime=0.29
/proc/8350/stat : 8350 (MiraXTv2_dyn) R 8348 8350 6272 0 -1 4194304 1377 0 0 0 29 0 0 0 19 0 1 0 365718580 7430144 1352 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 134583884 0 0 4096 0 0 0 0 17 0 0 0
/proc/8350/statm: 1814 1352 207 20 0 1172 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7256

[startup+0.702022 s]
/proc/loadavg: 0.77 0.98 1.04 3/77 8350
/proc/meminfo: memFree=1704536/2055920 swapFree=4148880/4192956
[pid=8350] ppid=8348 vsize=8116 CPUtime=0.69
/proc/8350/stat : 8350 (MiraXTv2_dyn) R 8348 8350 6272 0 -1 4194304 1584 0 0 0 68 1 0 0 23 0 1 0 365718580 8310784 1559 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 134583675 0 0 4096 0 0 0 0 17 0 0 0
/proc/8350/statm: 2029 1559 207 20 0 1387 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8116

[startup+1.5011 s]
/proc/loadavg: 0.77 0.98 1.04 2/78 8351
/proc/meminfo: memFree=1699024/2055920 swapFree=4148880/4192956
[pid=8350] ppid=8348 vsize=8564 CPUtime=1.49
/proc/8350/stat : 8350 (MiraXTv2_dyn) R 8348 8350 6272 0 -1 4194304 1708 0 0 0 148 1 0 0 25 0 1 0 365718580 8769536 1683 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 134584032 0 0 4096 0 0 0 0 17 0 0 0
/proc/8350/statm: 2141 1683 207 20 0 1499 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8564

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

[startup+1.90115 s]
/proc/loadavg: 0.77 0.98 1.04 2/78 8351
/proc/meminfo: memFree=1699024/2055920 swapFree=4148880/4192956
[pid=8350] ppid=8348 vsize=9228 CPUtime=1.89
/proc/8350/stat : 8350 (MiraXTv2_dyn) R 8348 8350 6272 0 -1 4194304 1840 0 0 0 188 1 0 0 25 0 1 0 365718580 9449472 1815 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 134583880 0 0 4096 0 0 0 0 17 0 0 0
/proc/8350/statm: 2307 1815 207 20 0 1665 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 9228

[startup+2.10117 s]
/proc/loadavg: 0.78 0.98 1.03 2/78 8351
/proc/meminfo: memFree=1697552/2055920 swapFree=4148880/4192956
[pid=8350] ppid=8348 vsize=9572 CPUtime=2.1
/proc/8350/stat : 8350 (MiraXTv2_dyn) R 8348 8350 6272 0 -1 4194304 1929 0 0 0 209 1 0 0 25 0 1 0 365718580 9801728 1904 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 134583884 0 0 4096 0 0 0 0 17 0 0 0
/proc/8350/statm: 2393 1904 207 20 0 1751 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 9572

[startup+2.20518 s]
/proc/loadavg: 0.78 0.98 1.03 2/78 8351
/proc/meminfo: memFree=1697552/2055920 swapFree=4148880/4192956
[pid=8350] ppid=8348 vsize=9704 CPUtime=2.2
/proc/8350/stat : 8350 (MiraXTv2_dyn) R 8348 8350 6272 0 -1 4194304 1995 0 0 0 219 1 0 0 25 0 1 0 365718580 9936896 1970 18446744073709551615 134512640 134597668 4294956656 18446744073709551615 10968820 0 0 4096 0 0 0 0 17 0 0 0
/proc/8350/statm: 2426 1970 207 20 0 1784 0
Current children cumulated CPU time (s) 2.2
Current children cumulated vsize (KiB) 9704

Child status: 20
Real time (s): 2.23394
CPU time (s): 2.23266
CPU user time (s): 2.21566
CPU system time (s): 0.016997
CPU usage (%): 99.9425
Max. virtual memory (cumulated for all children) (KiB): 9704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.21566
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2025
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= 12
involuntary context switches= 12

runsolver used 0.005999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Fri May 11 15:20:08 UTC 2007

IDJOB= 332795
IDBENCH= 24588
IDSOLVER= 129
FILE ID= node2/332795-1178896808

PBS_JOBID= 5251072

Free space on /tmp= 66560 MiB

SOLVER NAME= MiraXT v2
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00150.sat05-1328.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/332795-1178896808/MiraXTv2_dyn /tmp/evaluation/332795-1178896808/instance-332795-1178896808.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-332795-1178896808 -o ROOT/results/node2/solver-332795-1178896808 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332795-1178896808/MiraXTv2_dyn /tmp/evaluation/332795-1178896808/instance-332795-1178896808.cnf            

META MD5SUM SOLVER= 2ad149617ed8d249d89b067eb44c33da
MD5SUM BENCH=  b89dce22e5369c8081062018c6eea272

RANDOM SEED= 110720290

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.234
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		: 3000.234
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:       1704752 kB
Buffers:         46304 kB
Cached:         214144 kB
SwapCached:      12368 kB
Active:         138388 kB
Inactive:       147256 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1704752 kB
SwapTotal:     4192956 kB
SwapFree:      4148880 kB
Dirty:            5284 kB
Writeback:           0 kB
Mapped:          32124 kB
Slab:            50920 kB
Committed_AS: 11808096 kB
PageTables:       1864 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= 66560 MiB

End job on node2 on Fri May 11 15:20:10 UTC 2007