Trace number 370092

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
SATzilla CRAFTEDUNSAT 13.5739 13.5875

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00200.sat05-1329.reshuffled-07.cnf
MD5SUM2ed4f9474a813c543de526c0ca3729de
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.08183
Satisfiable
(Un)Satisfiability was proved
Number of variables725
Number of clauses22684
Sum of the clauses size194068
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 219
Number of clauses of size 3197
Number of clauses of size 4381
Number of clauses of size 51017
Number of clauses of size over 521068

Solver Data (download as text)

10.87/10.94	c run March_dl for 5 seconds ... 
10.87/10.94	c Bin: Executing march_dl
10.87/10.94	c child exit by a signal
10.87/10.94	c march_dl returned code 137.
10.87/10.94	c run saps (UBCSAT implementation) for 2 seconds ... 
10.87/10.94	c Bin: Executing ubcsat2006
10.87/10.94	c child exited successfully
10.87/10.94	c ubcsat2006 returned code 0.
10.87/10.94	c satzilla computing base features
10.87/10.94	c satzilla doing unit-prop probe
10.87/10.94	c satzilla doing local search probe
10.87/10.94	c satzilla doing lobjois search-space size estimate
10.87/10.94	c satzilla's ranking:
10.87/10.94	c 1) zchaff_rand+P: 0.371095
10.87/10.94	c 2) vallst+P: 0.740791
10.87/10.94	c 3) minisat20+P: 1.169775
10.87/10.94	c 4) minisat20: 2.067472
10.87/10.94	c 5) march_dl+P: 2.725687
10.87/10.94	c 6) march_dl: 3.318798
10.87/10.94	c 7) kcnfs+P: 999.000000
10.87/10.94	c 8) kcnfs: 999.000000
10.87/10.94	c 9) vallst: 999.000000
10.87/10.94	c 10) zchaff_rand: 999.000000
10.87/10.94	c satzilla running zchaff_rand with preprocessing ... 
13.45/13.58	c Preprocessing...
13.45/13.58	c Inital problem has 725 variables, 22665 nary clauses (19 binary clauses).
13.45/13.58	c Num non-binary clauses 22663, Average non-binary clause length 8.561
13.45/13.58	c Theory has no gaps
13.45/13.58	c Preprocessor runtime was 0.090 seconds.
13.45/13.58	c 
13.45/13.58	c Satisfiability of theory still undetermined.
13.45/13.58	c See file /tmp/cLtBbG for simplified theory.
13.45/13.58	c Bin: Executing zchaff_rand
13.45/13.58	c child exited successfully
13.45/13.58	c zchaff_rand returned code 20.
13.45/13.58	s UNSATISFIABLE
13.45/13.58	c SATZILLA_TIME=13.550000

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/node34/watcher-370092-1177551944 -o ROOT/results/node34/solver-370092-1177551944 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370092-1177551944/SATzilla2007_C /tmp/evaluation/370092-1177551944/instance-370092-1177551944.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: 0.70 0.94 0.94 3/77 761
/proc/meminfo: memFree=1667464/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=1440 CPUtime=0
/proc/761/stat : 761 (SATzilla2007_C) R 759 761 32518 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 203109922 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 1 0 0
/proc/761/statm: 360 110 95 260 0 84 0
[pid=762] ppid=761 vsize=816 CPUtime=0
/proc/762/stat : 762 (march_dl) R 761 761 32518 0 -1 4194304 108 0 0 0 0 0 0 0 18 0 1 0 203109922 835584 103 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/762/statm: 204 103 50 118 0 83 0

[startup+0.0197689 s]
/proc/loadavg: 0.70 0.94 0.94 3/77 761
/proc/meminfo: memFree=1667464/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=1440 CPUtime=0
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203109922 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/761/statm: 360 110 95 260 0 84 0
[pid=762] ppid=761 vsize=948 CPUtime=0.01
/proc/762/stat : 762 (march_dl) R 761 761 32518 0 -1 4194304 157 0 0 0 1 0 0 0 19 0 1 0 203109922 970752 152 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134777460 0 0 8392704 0 0 0 0 17 1 0 0
/proc/762/statm: 237 152 50 118 0 116 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2388

[startup+0.101774 s]
/proc/loadavg: 0.70 0.94 0.94 3/77 761
/proc/meminfo: memFree=1667464/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=1440 CPUtime=0
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203109922 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/761/statm: 360 110 95 260 0 84 0
[pid=762] ppid=761 vsize=2900 CPUtime=0.09
/proc/762/stat : 762 (march_dl) R 761 761 32518 0 -1 4194304 577 0 0 0 9 0 0 0 19 0 1 0 203109922 2969600 569 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134544585 0 0 8392704 0 0 0 0 17 1 0 0
/proc/762/statm: 725 569 53 118 0 604 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4340

[startup+0.301789 s]
/proc/loadavg: 0.70 0.94 0.94 3/77 761
/proc/meminfo: memFree=1667464/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=1440 CPUtime=0
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203109922 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/761/statm: 360 110 95 260 0 84 0
[pid=762] ppid=761 vsize=3912 CPUtime=0.29
/proc/762/stat : 762 (march_dl) R 761 761 32518 0 -1 4194304 1312 0 0 0 29 0 0 0 20 0 1 0 203109922 4005888 831 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134563083 0 0 8392704 0 0 0 0 17 1 0 0
/proc/762/statm: 978 831 65 118 0 857 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5352

[startup+0.70182 s]
/proc/loadavg: 0.70 0.94 0.94 3/77 761
/proc/meminfo: memFree=1667464/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=1440 CPUtime=0
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203109922 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/761/statm: 360 110 95 260 0 84 0
[pid=762] ppid=761 vsize=8412 CPUtime=0.69
/proc/762/stat : 762 (march_dl) R 761 761 32518 0 -1 4194304 2108 0 0 0 69 0 0 0 24 0 1 0 203109922 8613888 1224 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134583416 0 0 8392704 0 0 0 0 17 1 0 0
/proc/762/statm: 2103 1224 67 118 0 1982 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9852

[startup+1.50188 s]
/proc/loadavg: 0.70 0.94 0.94 2/79 763
/proc/meminfo: memFree=1662520/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=1440 CPUtime=0
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203109922 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/761/statm: 360 110 95 260 0 84 0
[pid=762] ppid=761 vsize=6064 CPUtime=1.49
/proc/762/stat : 762 (march_dl) R 761 761 32518 0 -1 4194304 2773 0 0 0 144 5 0 0 25 0 1 0 203109922 6209536 1358 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134675049 0 0 8392704 0 0 0 0 17 1 0 0
/proc/762/statm: 1516 1358 73 118 0 1395 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7504

[startup+3.10201 s]
/proc/loadavg: 0.70 0.94 0.94 2/79 763
/proc/meminfo: memFree=1661496/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=1440 CPUtime=0
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203109922 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/761/statm: 360 110 95 260 0 84 0
[pid=762] ppid=761 vsize=6516 CPUtime=3.09
/proc/762/stat : 762 (march_dl) R 761 761 32518 0 -1 4194304 2904 0 0 0 276 33 0 0 25 0 1 0 203109922 6672384 1489 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134675049 0 0 8392704 0 0 0 0 17 1 0 0
/proc/762/statm: 1629 1489 73 118 0 1508 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7956

[startup+6.30126 s]
/proc/loadavg: 0.80 0.96 0.94 2/79 764
/proc/meminfo: memFree=1664504/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=1440 CPUtime=4.99
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 134 4181 0 0 0 0 463 36 16 0 1 0 203109922 1474560 111 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/761/statm: 360 111 96 260 0 84 0
[pid=764] ppid=761 vsize=6188 CPUtime=1.28
/proc/764/stat : 764 (ubcsat2006) R 761 761 32518 0 -1 4194304 778 0 0 0 122 6 0 0 25 0 1 0 203110422 6336512 761 18446744073709551615 134512640 134777720 4294956544 18446744073709551615 4294960144 0 0 8392704 0 0 0 0 17 1 0 0
/proc/764/statm: 1547 761 156 64 0 1128 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 7628

[startup+12.7018 s]
/proc/loadavg: 0.82 0.96 0.94 2/79 765
/proc/meminfo: memFree=1655864/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=9140 CPUtime=11.08
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 3434 4965 0 0 383 9 670 46 25 0 1 0 203109922 9359360 1945 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/761/statm: 2285 1945 165 260 0 2009 0
[pid=765] ppid=761 vsize=7900 CPUtime=1.57
/proc/765/stat : 765 (zchaff_rand) R 761 761 32518 0 -1 4194304 1284 0 0 0 139 18 0 0 25 0 1 0 203111033 8089600 993 18446744073709551615 134512640 135365884 4294956720 18446744073709551615 135132785 0 0 8392704 0 0 0 0 17 1 0 0
/proc/765/statm: 1975 993 112 208 0 1747 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 17040

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

[startup+13.1018 s]
/proc/loadavg: 0.82 0.96 0.94 2/79 765
/proc/meminfo: memFree=1655288/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=9140 CPUtime=11.08
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 3434 4965 0 0 383 9 670 46 25 0 1 0 203109922 9359360 1945 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/761/statm: 2285 1945 165 260 0 2009 0
[pid=765] ppid=761 vsize=7900 CPUtime=1.97
/proc/765/stat : 765 (zchaff_rand) R 761 761 32518 0 -1 4194304 1341 0 0 0 174 23 0 0 25 0 1 0 203111033 8089600 1050 18446744073709551615 134512640 135365884 4294956720 18446744073709551615 135132785 0 0 8392704 0 0 0 0 17 1 0 0
/proc/765/statm: 1975 1050 112 208 0 1747 0
Current children cumulated CPU time (s) 13.05
Current children cumulated vsize (KiB) 17040

[startup+13.5018 s]
/proc/loadavg: 0.82 0.96 0.94 2/79 765
/proc/meminfo: memFree=1655288/2055920 swapFree=4159680/4192956
[pid=761] ppid=759 vsize=9140 CPUtime=11.08
/proc/761/stat : 761 (SATzilla2007_C) S 759 761 32518 0 -1 4194304 3434 4965 0 0 383 9 670 46 25 0 1 0 203109922 9359360 1945 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/761/statm: 2285 1945 165 260 0 2009 0
[pid=765] ppid=761 vsize=8032 CPUtime=2.37
/proc/765/stat : 765 (zchaff_rand) R 761 761 32518 0 -1 4194304 1421 0 0 0 210 27 0 0 25 0 1 0 203111033 8224768 1130 18446744073709551615 134512640 135365884 4294956720 18446744073709551615 135132785 0 0 8392704 0 0 0 0 17 1 0 0
/proc/765/statm: 2008 1130 112 208 0 1780 0
Current children cumulated CPU time (s) 13.45
Current children cumulated vsize (KiB) 17172

Child status: 20
Real time (s): 13.5875
CPU time (s): 13.5739
CPU user time (s): 12.7281
CPU system time (s): 0.845871
CPU usage (%): 99.8998
Max. virtual memory (cumulated for all children) (KiB): 17172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.7281
system time used= 0.845871
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9855
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= 28
involuntary context switches= 77

runsolver used 0.007998 second user time and 0.045993 second system time

The end

Launcher Data (download as text)

Begin job on node34 on Thu Apr 26 01:45:45 UTC 2007

IDJOB= 370092
IDBENCH= 24591
IDSOLVER= 179
FILE ID= node34/370092-1177551944

PBS_JOBID= 4696623

Free space on /tmp= 66417 MiB

SOLVER NAME= SATzilla CRAFTED
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00200.sat05-1329.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/370092-1177551944/SATzilla2007_C /tmp/evaluation/370092-1177551944/instance-370092-1177551944.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-370092-1177551944 -o ROOT/results/node34/solver-370092-1177551944 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370092-1177551944/SATzilla2007_C /tmp/evaluation/370092-1177551944/instance-370092-1177551944.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  2ed4f9474a813c543de526c0ca3729de

RANDOM SEED= 969728860

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node34.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		: 3000.236
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		: 3000.236
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:       1667808 kB
Buffers:         35948 kB
Cached:         231008 kB
SwapCached:       3072 kB
Active:         227008 kB
Inactive:       101548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1667808 kB
SwapTotal:     4192956 kB
SwapFree:      4159680 kB
Dirty:            9256 kB
Writeback:           0 kB
Mapped:          68516 kB
Slab:            44768 kB
Committed_AS:  1673152 kB
PageTables:       2068 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= 66416 MiB

End job on node34 on Thu Apr 26 01:45:59 UTC 2007