Trace number 316128

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 26.7079 26.7164

General information on the benchmark

Namecrafted/spence/
medium/s61-100.cnf
MD5SUM8e686ecbc85309de84d77c0df9eeaa58
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.65375
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
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/316128-1172664475/instance-316128-1172664475.cnf
26.68/26.71	s UNSATISFIABLE
26.68/26.71	c runtime 26.70 [s]

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node24/watcher-316128-1172664475 -o ROOT/results/node24/solver-316128-1172664475 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316128-1172664475/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/316128-1172664475/instance-316128-1172664475.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: 0.92 0.98 0.99 3/77 14642
/proc/meminfo: memFree=1841552/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=1396 CPUtime=0
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 180 0 0 0 0 0 0 0 18 0 1 0 286401760 1429504 164 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 349 164 140 302 0 44 0

[startup+0.0517471 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14642
/proc/meminfo: memFree=1841552/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=1528 CPUtime=0.04
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 224 0 0 0 4 0 0 0 18 0 1 0 286401760 1564672 208 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 382 208 140 302 0 77 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1528

[startup+0.10275 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14642
/proc/meminfo: memFree=1841552/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=1660 CPUtime=0.1
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 257 0 0 0 10 0 0 0 18 0 1 0 286401760 1699840 241 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 415 241 140 302 0 110 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1660

[startup+0.301773 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14642
/proc/meminfo: memFree=1841552/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=2056 CPUtime=0.29
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 346 0 0 0 29 0 0 0 19 0 1 0 286401760 2105344 330 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 514 330 140 302 0 209 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2056

[startup+0.702815 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14642
/proc/meminfo: memFree=1841552/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=2612 CPUtime=0.7
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 463 0 0 0 69 1 0 0 23 0 1 0 286401760 2674688 447 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 653 447 140 302 0 348 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2612

[startup+1.5019 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 14643
/proc/meminfo: memFree=1840008/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=3284 CPUtime=1.49
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 616 0 0 0 148 1 0 0 25 0 1 0 286401760 3362816 600 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 821 600 140 302 0 516 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3284

[startup+3.10108 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 14643
/proc/meminfo: memFree=1839240/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=4116 CPUtime=3.09
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 825 0 0 0 307 2 0 0 25 0 1 0 286401760 4214784 809 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 1029 809 140 302 0 724 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4116

[startup+6.30142 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14643
/proc/meminfo: memFree=1837896/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=5312 CPUtime=6.29
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 1140 0 0 0 625 4 0 0 25 0 1 0 286401760 5439488 1091 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 1328 1091 140 302 0 1023 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5312

[startup+12.7011 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14643
/proc/meminfo: memFree=1836240/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=6924 CPUtime=12.69
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 1545 0 0 0 1263 6 0 0 25 0 1 0 286401760 7090176 1496 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 1731 1496 140 302 0 1426 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6924

[startup+25.5015 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 14643
/proc/meminfo: memFree=1835216/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=7908 CPUtime=25.49
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 1785 0 0 0 2539 10 0 0 25 0 1 0 286401760 8097792 1671 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 1977 1671 140 302 0 1672 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 7908

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

[startup+26.3026 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 14643
/proc/meminfo: memFree=1835152/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=7908 CPUtime=26.29
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 1788 0 0 0 2619 10 0 0 25 0 1 0 286401760 8097792 1674 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 1977 1674 140 302 0 1672 0
Current children cumulated CPU time (s) 26.29
Current children cumulated vsize (KiB) 7908

[startup+26.7026 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 14643
/proc/meminfo: memFree=1835152/2055920 swapFree=4144104/4192956
[pid=14642] ppid=14640 vsize=8068 CPUtime=26.68
/proc/14642/stat : 14642 (Spear-32) R 14640 14642 13964 0 -1 4194304 1793 0 0 0 2658 10 0 0 25 0 1 0 286401760 8261632 1679 18446744073709551615 134512640 135752790 4294956592 18446744073709551615 134526871 0 0 4096 0 0 0 0 17 1 0 0
/proc/14642/statm: 2017 1679 140 302 0 1712 0
Current children cumulated CPU time (s) 26.68
Current children cumulated vsize (KiB) 8068

Child status: 20
Real time (s): 26.7164
CPU time (s): 26.7079
CPU user time (s): 26.6
CPU system time (s): 0.107983
CPU usage (%): 99.9684
Max. virtual memory (cumulated for all children) (KiB): 8068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.6
system time used= 0.107983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1814
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= 58

runsolver used 0.033994 second user time and 0.06299 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Wed Feb 28 12:07:55 UTC 2007

IDJOB= 316128
IDBENCH= 20433
IDSOLVER= 133
FILE ID= node24/316128-1172664475

PBS_JOBID= 3981206

Free space on /tmp= 66533 MiB

SOLVER NAME= Spear 2007-02-12
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s61-100.cnf
COMMAND LINE= /tmp/evaluation/316128-1172664475/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/316128-1172664475/instance-316128-1172664475.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-316128-1172664475 -o ROOT/results/node24/solver-316128-1172664475 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316128-1172664475/Spear-32 --model-stdout --time --dimacs /tmp/evaluation/316128-1172664475/instance-316128-1172664475.cnf            

META MD5SUM SOLVER= 53b58dfa80430416a78fe762713f980c
MD5SUM BENCH=  8e686ecbc85309de84d77c0df9eeaa58

RANDOM SEED= 263597510

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.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		: 3000.232
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		: 3000.232
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:       1842024 kB
Buffers:          9208 kB
Cached:         135304 kB
SwapCached:       3592 kB
Active:          31748 kB
Inactive:       122064 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1842024 kB
SwapTotal:     4192956 kB
SwapFree:      4144104 kB
Dirty:            1536 kB
Writeback:           0 kB
Mapped:          15376 kB
Slab:            45668 kB
Committed_AS:   841852 kB
PageTables:       1732 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= 66533 MiB

End job on node24 on Wed Feb 28 12:08:22 UTC 2007