Trace number 310644

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 25.9221 25.9425

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
MD5SUMda575672f9caad385bd5edff99ee5f4d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.42378
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
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/310644-1172560673/instance-310644-1172560673.cnf
25.90/25.93	s UNSATISFIABLE
25.90/25.93	c runtime 25.92 [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/node58/watcher-310644-1172560673 -o ROOT/results/node58/solver-310644-1172560673 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310644-1172560673/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/310644-1172560673/instance-310644-1172560673.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: 1.19 1.06 1.02 3/64 26025
/proc/meminfo: memFree=1820992/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=1548 CPUtime=0
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 204 0 0 0 0 0 0 0 18 0 1 0 276023960 1585152 188 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 135258954 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 387 188 128 302 0 82 0

[startup+0.107156 s]
/proc/loadavg: 1.19 1.06 1.02 3/64 26025
/proc/meminfo: memFree=1820992/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=1804 CPUtime=0.1
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 283 0 0 0 10 0 0 0 18 0 1 0 276023960 1847296 267 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 451 267 140 302 0 146 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1804

[startup+0.515199 s]
/proc/loadavg: 1.19 1.06 1.02 3/64 26025
/proc/meminfo: memFree=1820992/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=2444 CPUtime=0.5
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 430 0 0 0 50 0 0 0 22 0 1 0 276023960 2502656 414 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 611 414 140 302 0 306 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 2444

[startup+1.33629 s]
/proc/loadavg: 1.19 1.06 1.02 2/65 26026
/proc/meminfo: memFree=1819128/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=3264 CPUtime=1.32
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 639 0 0 0 131 1 0 0 25 0 1 0 276023960 3342336 623 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 816 623 140 302 0 511 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 3264

[startup+2.97947 s]
/proc/loadavg: 1.19 1.06 1.02 2/65 26026
/proc/meminfo: memFree=1818168/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=4340 CPUtime=2.97
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 910 0 0 0 295 2 0 0 25 0 1 0 276023960 4444160 894 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 1085 894 140 302 0 780 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 4340

[startup+6.25584 s]
/proc/loadavg: 1.17 1.05 1.02 2/65 26026
/proc/meminfo: memFree=1816312/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=6232 CPUtime=6.25
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 1361 0 0 0 621 4 0 0 25 0 1 0 276023960 6381568 1312 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 1558 1312 141 302 0 1253 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 6232

[startup+12.7145 s]
/proc/loadavg: 1.16 1.05 1.02 2/65 26026
/proc/meminfo: memFree=1814072/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=8220 CPUtime=12.7
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 1860 0 0 0 1264 6 0 0 25 0 1 0 276023960 8417280 1811 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 2055 1811 141 302 0 1750 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 8220

[startup+25.517 s]
/proc/loadavg: 1.12 1.05 1.01 2/65 26026
/proc/meminfo: memFree=1813240/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=9308 CPUtime=25.48
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 2133 0 0 0 2540 8 0 0 25 0 1 0 276023960 9531392 2019 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 134526928 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 2327 2019 141 302 0 2022 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 9308

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

[startup+25.824 s]
/proc/loadavg: 1.12 1.05 1.01 2/65 26026
/proc/meminfo: memFree=1813240/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=9308 CPUtime=25.8
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 2138 0 0 0 2571 9 0 0 25 0 1 0 276023960 9531392 2024 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 2327 2024 141 302 0 2022 0
Current children cumulated CPU time (s) 25.8
Current children cumulated vsize (KiB) 9308

[startup+25.926 s]
/proc/loadavg: 1.12 1.05 1.01 2/65 26026
/proc/meminfo: memFree=1813176/2055920 swapFree=4183776/4192956
[pid=26025] ppid=26023 vsize=9308 CPUtime=25.9
/proc/26025/stat : 26025 (Spear-32) R 26023 26025 25285 0 -1 4194304 2138 0 0 0 2581 9 0 0 25 0 1 0 276023960 9531392 2024 18446744073709551615 134512640 135752790 4294956672 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/26025/statm: 2327 2024 141 302 0 2022 0
Current children cumulated CPU time (s) 25.9
Current children cumulated vsize (KiB) 9308

Child status: 20
Real time (s): 25.9425
CPU time (s): 25.9221
CPU user time (s): 25.8281
CPU system time (s): 0.093985
CPU usage (%): 99.9211
Max. virtual memory (cumulated for all children) (KiB): 9308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.8281
system time used= 0.093985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2159
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= 127

runsolver used 0.021996 second user time and 0.078987 second system time

The end

Launcher Data (download as text)

Begin job on node58 on Tue Feb 27 07:17:53 UTC 2007

IDJOB= 310644
IDBENCH= 20292
IDSOLVER= 133
FILE ID= node58/310644-1172560673

PBS_JOBID= 3971866

Free space on /tmp= 66562 MiB

SOLVER NAME= Spear 2007-02-12
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1893175053-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310644-1172560673/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/310644-1172560673/instance-310644-1172560673.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node58/watcher-310644-1172560673 -o ROOT/results/node58/solver-310644-1172560673 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310644-1172560673/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/310644-1172560673/instance-310644-1172560673.cnf            

META MD5SUM SOLVER= 53b58dfa80430416a78fe762713f980c
MD5SUM BENCH=  da575672f9caad385bd5edff99ee5f4d

RANDOM SEED= 471173714

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node58.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:       1821464 kB
Buffers:         29684 kB
Cached:         156980 kB
SwapCached:       3464 kB
Active:          77756 kB
Inactive:       119208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1821464 kB
SwapTotal:     4192956 kB
SwapFree:      4183776 kB
Dirty:            1568 kB
Writeback:           0 kB
Mapped:          15432 kB
Slab:            23612 kB
Committed_AS:   630668 kB
PageTables:       1380 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= 66562 MiB

End job on node58 on Tue Feb 27 07:18:19 UTC 2007