Trace number 1730348

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 6.89995 6.91285

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
MD5SUM4c3b2816cb16b0fd4134bf2c85ce45d0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.61375
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179702
Sum of the clauses size718202
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 4179400
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

6.87/6.91	c SATzilla is building models for class 2
6.87/6.91	c run presolver march_dl2004 for 5 seconds ... 
6.87/6.91	c Bin: Executing march_dl2004
6.87/6.91	c spawning binary file with 5 seconds ...
6.87/6.91	c child exit by a signal
6.87/6.91	c march_dl2004 returned code 137.
6.87/6.91	c run presolver mxc-sr08 for 5 seconds ... 
6.87/6.91	c Bin: Executing mxc-sr08
6.87/6.91	c spawning binary file with 5 seconds ...
6.87/6.91	c child exited successfully
6.87/6.91	c mxc-sr08 returned code 20.
6.87/6.91	s UNSATISFIABLE
6.87/6.91	c SATZILLA_TIME=6.900000

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-1730348-1240758422/watcher-1730348-1240758422 -o /tmp/evaluation-result-1730348-1240758422/solver-1730348-1240758422 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_C HOME/instance-1730348-1240758422.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: 1.84 1.83 1.45 3/64 25334
/proc/meminfo: memFree=1637640/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=0
/proc/25334/stat : 25334 (SATzilla2009_C) R 25332 25334 24985 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 103875776 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 1 0 0
/proc/25334/statm: 514 112 96 399 0 111 0
[pid=25335] ppid=25334 vsize=4344 CPUtime=0
/proc/25335/stat : 25335 (march_dl2004) R 25334 25334 24985 0 -1 4194304 459 0 0 0 0 0 0 0 18 0 1 0 103875776 4448256 454 1992294400 134512640 134996440 4294956176 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25335/statm: 1086 456 49 118 0 965 0

[startup+0.0700779 s]
/proc/loadavg: 1.84 1.83 1.45 3/64 25334
/proc/meminfo: memFree=1637640/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=0
/proc/25334/stat : 25334 (SATzilla2009_C) S 25332 25334 24985 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 103875776 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/25334/statm: 514 112 96 399 0 111 0
[pid=25335] ppid=25334 vsize=8312 CPUtime=0.06
/proc/25335/stat : 25335 (march_dl2004) R 25334 25334 24985 0 -1 4194304 1748 0 0 0 6 0 0 0 19 0 1 0 103875776 8511488 1743 1992294400 134512640 134996440 4294956176 18446744073709551615 134549887 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25335/statm: 2078 1743 50 118 0 1957 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 10368

[startup+0.102068 s]
/proc/loadavg: 1.84 1.83 1.45 3/64 25334
/proc/meminfo: memFree=1637640/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=0
/proc/25334/stat : 25334 (SATzilla2009_C) S 25332 25334 24985 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 103875776 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/25334/statm: 514 112 96 399 0 111 0
[pid=25335] ppid=25334 vsize=8576 CPUtime=0.09
/proc/25335/stat : 25335 (march_dl2004) R 25334 25334 24985 0 -1 4194304 1858 0 0 0 9 0 0 0 19 0 1 0 103875776 8781824 1853 1992294400 134512640 134996440 4294956176 18446744073709551615 134669245 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25335/statm: 2144 1853 50 118 0 2023 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10632

[startup+0.30201 s]
/proc/loadavg: 1.84 1.83 1.45 3/64 25334
/proc/meminfo: memFree=1637640/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=0
/proc/25334/stat : 25334 (SATzilla2009_C) S 25332 25334 24985 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 103875776 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/25334/statm: 514 112 96 399 0 111 0
[pid=25335] ppid=25334 vsize=11084 CPUtime=0.29
/proc/25335/stat : 25335 (march_dl2004) R 25334 25334 24985 0 -1 4194304 2556 0 0 0 28 1 0 0 21 0 1 0 103875776 11350016 2551 1992294400 134512640 134996440 4294956176 18446744073709551615 134669245 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25335/statm: 2771 2551 50 118 0 2650 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13140

[startup+0.702898 s]
/proc/loadavg: 1.84 1.83 1.45 3/64 25334
/proc/meminfo: memFree=1637640/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=0
/proc/25334/stat : 25334 (SATzilla2009_C) S 25332 25334 24985 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 103875776 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/25334/statm: 514 112 96 399 0 111 0
[pid=25335] ppid=25334 vsize=22404 CPUtime=0.69
/proc/25335/stat : 25335 (march_dl2004) R 25334 25334 24985 0 -1 4194304 5363 0 0 0 67 2 0 0 25 0 1 0 103875776 22941696 4823 1992294400 134512640 134996440 4294956176 18446744073709551615 134650634 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25335/statm: 5601 4823 53 118 0 5480 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 24460

[startup+1.50168 s]
/proc/loadavg: 1.84 1.83 1.45 2/66 25336
/proc/meminfo: memFree=1611320/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=0
/proc/25334/stat : 25334 (SATzilla2009_C) S 25332 25334 24985 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 103875776 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/25334/statm: 514 112 96 399 0 111 0
[pid=25335] ppid=25334 vsize=22484 CPUtime=1.49
/proc/25335/stat : 25335 (march_dl2004) R 25334 25334 24985 0 -1 4194304 9435 0 0 0 145 4 0 0 25 0 1 0 103875776 23023616 4857 1992294400 134512640 134996440 4294956176 18446744073709551615 134542888 0 0 8392704 0 0 0 0 17 0 0 0
/proc/25335/statm: 5621 4857 55 118 0 5500 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 24540

[startup+3.10123 s]
/proc/loadavg: 1.84 1.83 1.45 2/66 25336
/proc/meminfo: memFree=1610296/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=0
/proc/25334/stat : 25334 (SATzilla2009_C) S 25332 25334 24985 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 103875776 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/25334/statm: 514 112 96 399 0 111 0
[pid=25335] ppid=25334 vsize=29480 CPUtime=3.09
/proc/25335/stat : 25335 (march_dl2004) R 25334 25334 24985 0 -1 4194304 23257 0 0 0 297 12 0 0 25 0 1 0 103875776 30187520 6590 1992294400 134512640 134996440 4294956176 18446744073709551615 134543076 0 0 8392704 0 0 0 0 17 0 0 0
/proc/25335/statm: 7370 6590 61 118 0 7249 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 31536

[startup+6.30131 s]
/proc/loadavg: 1.85 1.83 1.45 2/66 25337
/proc/meminfo: memFree=1611064/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=5
/proc/25334/stat : 25334 (SATzilla2009_C) S 25332 25334 24985 0 -1 4194304 152 33848 0 0 0 0 482 18 16 0 1 0 103875776 2105344 121 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/25334/statm: 514 121 104 399 0 111 0
[pid=25337] ppid=25334 vsize=36792 CPUtime=1.27
/proc/25337/stat : 25337 (mxc-sr08) R 25334 25334 24985 0 -1 4194304 9470 0 0 0 123 4 0 0 25 0 1 0 103876278 37675008 8245 1992294400 134512640 135078026 4294956176 18446744073709551615 134722554 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25337/statm: 9198 8245 55 138 0 9057 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 38848

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

[startup+6.7012 s]
/proc/loadavg: 1.85 1.83 1.45 2/66 25337
/proc/meminfo: memFree=1601912/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=5
/proc/25334/stat : 25334 (SATzilla2009_C) S 25332 25334 24985 0 -1 4194304 152 33848 0 0 0 0 482 18 16 0 1 0 103875776 2105344 121 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/25334/statm: 514 121 104 399 0 111 0
[pid=25337] ppid=25334 vsize=42944 CPUtime=1.67
/proc/25337/stat : 25337 (mxc-sr08) R 25334 25334 24985 0 -1 4194304 11014 0 0 0 163 4 0 0 25 0 1 0 103876278 43974656 9789 1992294400 134512640 135078026 4294956176 18446744073709551615 134722554 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25337/statm: 10736 9789 55 138 0 10595 0
Current children cumulated CPU time (s) 6.67
Current children cumulated vsize (KiB) 45000

[startup+6.90114 s]
/proc/loadavg: 1.85 1.83 1.45 2/66 25337
/proc/meminfo: memFree=1601912/2055920 swapFree=4181368/4192956
[pid=25334] ppid=25332 vsize=2056 CPUtime=5
/proc/25334/stat : 25334 (SATzilla2009_C) S 25332 25334 24985 0 -1 4194304 152 33848 0 0 0 0 482 18 16 0 1 0 103875776 2105344 121 1992294400 134512640 136149437 4294956208 18446744073709551615 135542781 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/25334/statm: 514 121 104 399 0 111 0
[pid=25337] ppid=25334 vsize=46324 CPUtime=1.87
/proc/25337/stat : 25337 (mxc-sr08) R 25334 25334 24985 0 -1 4194304 11811 0 0 0 182 5 0 0 25 0 1 0 103876278 47435776 10586 1992294400 134512640 135078026 4294956176 18446744073709551615 134722554 0 0 8392704 0 0 0 0 17 1 0 0
/proc/25337/statm: 11581 10586 55 138 0 11440 0
Current children cumulated CPU time (s) 6.87
Current children cumulated vsize (KiB) 48380

Child status: 20
Real time (s): 6.91285
CPU time (s): 6.89995
CPU user time (s): 6.65899
CPU system time (s): 0.240963
CPU usage (%): 99.8134
Max. virtual memory (cumulated for all children) (KiB): 59064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.65899
system time used= 0.240963
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 45867
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= 7
involuntary context switches= 43

runsolver used 0.008998 second user time and 0.025996 second system time

The end

Launcher Data 

Begin job on node16 at 2009-04-26 17:07:03
IDJOB=1730348
IDBENCH=24728
IDSOLVER=527
FILE ID=node16/1730348-1240758422
PBS_JOBID= 9187088
Free space on /tmp= 66316 MiB

SOLVER NAME= SATzilla2009_C 2009-03-22
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
COMMAND LINE= HOME/SATzilla2009_C BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1730348-1240758422/watcher-1730348-1240758422 -o /tmp/evaluation-result-1730348-1240758422/solver-1730348-1240758422 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_C HOME/instance-1730348-1240758422.cnf

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

MD5SUM BENCH= 4c3b2816cb16b0fd4134bf2c85ce45d0
RANDOM SEED=584692808

node16.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		: 3000.234
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:       1638184 kB
Buffers:         45592 kB
Cached:         315864 kB
SwapCached:       5472 kB
Active:         165396 kB
Inactive:       204004 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1638184 kB
SwapTotal:     4192956 kB
SwapFree:      4181368 kB
Dirty:           36272 kB
Writeback:           0 kB
Mapped:          13616 kB
Slab:            34440 kB
Committed_AS:   406252 kB
PageTables:       1436 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= 66288 MiB
End job on node16 at 2009-04-26 17:07:11