Trace number 311177

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
Spear 2007-02-12UNSAT 47.0388 47.0528

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S834531569-01-UNSAT.cnf
MD5SUM4899d6582d732ef8e47904f161487c51
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.72943
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c (*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*) 
0.00/0.00	c (*)                                             (*) 
0.00/0.00	c (*)          Spear theorem prover               (*) 
0.00/0.00	c (*)        Copyright (C) 2006,2007              (*) 
0.00/0.00	c (*)     Domagoj Babic. All rights reserved.     (*) 
0.00/0.00	c (*)                                             (*) 
0.00/0.00	c (*)     There is NO warranty, not even for      (*) 
0.00/0.00	c (*) merchantability or fitness for a particular (*) 
0.00/0.00	c (*)  purpose. Please run with --license to see  (*) 
0.00/0.00	c (*)              license details.               (*) 
0.00/0.00	c (*)                                             (*) 
0.00/0.00	c (*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*)(*) 
0.00/0.00	c 
0.00/0.00	c solving /tmp/evaluation/311177-1172564840/instance-311177-1172564840.cnf
47.01/47.04	s UNSATISFIABLE
47.01/47.05	c runtime 47.04 [s]

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node3/watcher-311177-1172564840 -o ROOT/results/node3/solver-311177-1172564840 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311177-1172564840/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/311177-1172564840/instance-311177-1172564840.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.91 1.14 1.25 3/77 29458
/proc/meminfo: memFree=813792/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=1708 CPUtime=0
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 226 0 0 0 0 0 0 0 18 0 1 0 276438885 1748992 210 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 134516624 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 427 210 128 302 0 122 0

[startup+0.107773 s]
/proc/loadavg: 0.91 1.14 1.25 3/77 29458
/proc/meminfo: memFree=813792/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=1964 CPUtime=0.1
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 308 0 0 0 10 0 0 0 18 0 1 0 276438885 2011136 292 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 491 292 140 302 0 186 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1964

[startup+0.516806 s]
/proc/loadavg: 0.91 1.14 1.25 3/77 29458
/proc/meminfo: memFree=813792/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=2384 CPUtime=0.5
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 434 0 0 0 50 0 0 0 21 0 1 0 276438885 2441216 418 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 596 418 140 302 0 291 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 2384

[startup+1.34187 s]
/proc/loadavg: 0.91 1.14 1.25 3/78 29459
/proc/meminfo: memFree=812056/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=3200 CPUtime=1.33
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 615 0 0 0 132 1 0 0 25 0 1 0 276438885 3276800 599 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 800 599 141 302 0 495 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3200

[startup+2.97801 s]
/proc/loadavg: 0.91 1.14 1.25 2/78 29459
/proc/meminfo: memFree=811096/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=4360 CPUtime=2.97
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 888 0 0 0 295 2 0 0 25 0 1 0 276438885 4464640 872 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 1090 872 141 302 0 785 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 4360

[startup+6.25428 s]
/proc/loadavg: 0.92 1.14 1.25 2/78 29459
/proc/meminfo: memFree=809432/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=5780 CPUtime=6.24
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 1250 0 0 0 620 4 0 0 25 0 1 0 276438885 5918720 1234 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 1445 1234 141 302 0 1140 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 5780

[startup+12.7108 s]
/proc/loadavg: 0.93 1.14 1.25 2/78 29459
/proc/meminfo: memFree=807192/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=7888 CPUtime=12.69
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 1783 0 0 0 1263 6 0 0 25 0 1 0 276438885 8077312 1734 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 1972 1734 141 302 0 1667 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7888

[startup+25.5109 s]
/proc/loadavg: 0.94 1.13 1.24 2/78 29459
/proc/meminfo: memFree=805528/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=9588 CPUtime=25.5
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 2191 0 0 0 2539 11 0 0 25 0 1 0 276438885 9818112 2142 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 2397 2142 141 302 0 2092 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 9588

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

[startup+26.2319 s]
/proc/loadavg: 0.94 1.13 1.24 2/78 29459
/proc/meminfo: memFree=805528/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=9588 CPUtime=26.22
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 2197 0 0 0 2611 11 0 0 25 0 1 0 276438885 9818112 2148 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 2397 2148 141 302 0 2092 0
Current children cumulated CPU time (s) 26.22
Current children cumulated vsize (KiB) 9588

[startup+39.343 s]
/proc/loadavg: 0.95 1.13 1.24 2/78 29459
/proc/meminfo: memFree=803544/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=11940 CPUtime=39.33
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 2785 0 0 0 3919 14 0 0 25 0 1 0 276438885 12226560 2671 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 2985 2671 141 302 0 2680 0
Current children cumulated CPU time (s) 39.33
Current children cumulated vsize (KiB) 11940

[startup+42.6193 s]
/proc/loadavg: 0.95 1.12 1.24 2/78 29459
/proc/meminfo: memFree=802968/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=12600 CPUtime=42.6
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 2934 0 0 0 4245 15 0 0 25 0 1 0 276438885 12902400 2820 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 3150 2820 141 302 0 2845 0
Current children cumulated CPU time (s) 42.6
Current children cumulated vsize (KiB) 12600

[startup+44.2654 s]
/proc/loadavg: 0.95 1.12 1.24 2/78 29459
/proc/meminfo: memFree=802712/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=12728 CPUtime=44.24
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 2955 0 0 0 4409 15 0 0 25 0 1 0 276438885 13033472 2841 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 3182 2841 141 302 0 2877 0
Current children cumulated CPU time (s) 44.24
Current children cumulated vsize (KiB) 12728

[startup+45.9015 s]
/proc/loadavg: 0.96 1.12 1.24 2/78 29459
/proc/meminfo: memFree=802712/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=12728 CPUtime=45.88
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 2955 0 0 0 4572 16 0 0 25 0 1 0 276438885 13033472 2841 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 3182 2841 141 302 0 2877 0
Current children cumulated CPU time (s) 45.88
Current children cumulated vsize (KiB) 12728

[startup+46.7216 s]
/proc/loadavg: 0.96 1.12 1.24 2/78 29459
/proc/meminfo: memFree=802712/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=12728 CPUtime=46.7
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 2955 0 0 0 4654 16 0 0 25 0 1 0 276438885 13033472 2841 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 3182 2841 141 302 0 2877 0
Current children cumulated CPU time (s) 46.7
Current children cumulated vsize (KiB) 12728

[startup+46.9256 s]
/proc/loadavg: 0.96 1.12 1.24 2/78 29459
/proc/meminfo: memFree=802712/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=12728 CPUtime=46.9
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 2955 0 0 0 4674 16 0 0 25 0 1 0 276438885 13033472 2841 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 3182 2841 141 302 0 2877 0
Current children cumulated CPU time (s) 46.9
Current children cumulated vsize (KiB) 12728

[startup+47.0276 s]
/proc/loadavg: 0.96 1.12 1.24 2/78 29459
/proc/meminfo: memFree=802712/2055920 swapFree=4192812/4192956
[pid=29458] ppid=29456 vsize=12728 CPUtime=47.01
/proc/29458/stat : 29458 (Spear-32) R 29456 29458 27123 0 -1 4194304 2955 0 0 0 4685 16 0 0 25 0 1 0 276438885 13033472 2841 18446744073709551615 134512640 135752790 4294956656 18446744073709551615 134527175 0 0 4096 0 0 0 0 17 1 0 0
/proc/29458/statm: 3182 2841 141 302 0 2877 0
Current children cumulated CPU time (s) 47.01
Current children cumulated vsize (KiB) 12728

Child status: 20
Real time (s): 47.0528
CPU time (s): 47.0388
CPU user time (s): 46.8729
CPU system time (s): 0.165974
CPU usage (%): 99.9703
Max. virtual memory (cumulated for all children) (KiB): 12728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 46.8729
system time used= 0.165974
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2976
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= 70

runsolver used 0.058991 second user time and 0.113982 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Tue Feb 27 08:27:20 UTC 2007

IDJOB= 311177
IDBENCH= 20306
IDSOLVER= 133
FILE ID= node3/311177-1172564840

PBS_JOBID= 3971662

Free space on /tmp= 66558 MiB

SOLVER NAME= Spear 2007-02-12
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S834531569-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/311177-1172564840/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/311177-1172564840/instance-311177-1172564840.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-311177-1172564840 -o ROOT/results/node3/solver-311177-1172564840 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311177-1172564840/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/311177-1172564840/instance-311177-1172564840.cnf            

META MD5SUM SOLVER= 53b58dfa80430416a78fe762713f980c
MD5SUM BENCH=  4899d6582d732ef8e47904f161487c51

RANDOM SEED= 869042479

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.241
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		: 3000.241
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:        814200 kB
Buffers:         69600 kB
Cached:        1035264 kB
SwapCached:          0 kB
Active:         460324 kB
Inactive:       699204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        814200 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1624 kB
Writeback:           0 kB
Mapped:          73576 kB
Slab:            67824 kB
Committed_AS:  1199072 kB
PageTables:       1656 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= 66558 MiB

End job on node3 on Tue Feb 27 08:28:08 UTC 2007