Trace number 1553320

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
CSat 2009-03-22UNSAT 7.59684 7.59837

General information on the benchmark

NameAPPLICATIONS/bitverif/
minxorminand/minxorminand032.cnf
MD5SUM49dda3faa6676166ee2ccb89f6cd8ca0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.59684
Satisfiable
(Un)Satisfiability was proved
Number of variables10794
Number of clauses31997
Sum of the clauses size74657
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 221330
Number of clauses of size 310665
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

7.48/7.59	c Variable Count:   10794
7.48/7.59	c Clause Count:     31997
7.48/7.59	s UNSATISFIABLE
7.48/7.59	c Total Time: 7.59

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-1553320-1238713538/watcher-1553320-1238713538 -o /tmp/evaluation-result-1553320-1238713538/solver-1553320-1238713538 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/csat HOME/instance-1553320-1238713538.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: 1.15 1.03 1.01 3/64 27182
/proc/meminfo: memFree=1217968/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=2008 CPUtime=0
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 375 0 0 0 0 0 0 0 18 0 1 0 1144016326 2056192 289 1992294400 134512640 135625496 4294956224 18446744073709551615 134529562 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 502 289 86 271 0 228 0

[startup+0.010342 s]
/proc/loadavg: 1.15 1.03 1.01 3/64 27182
/proc/meminfo: memFree=1217968/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=2568 CPUtime=0
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 592 0 0 0 0 0 0 0 18 0 1 0 1144016326 2629632 347 1992294400 134512640 135625496 4294956224 18446744073709551615 134538696 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 642 347 88 271 0 368 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2568

[startup+0.101359 s]
/proc/loadavg: 1.15 1.03 1.01 3/64 27182
/proc/meminfo: memFree=1217968/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=9216 CPUtime=0.09
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 2311 0 0 0 9 0 0 0 18 0 1 0 1144016326 9437184 2065 1992294400 134512640 135625496 4294956224 18446744073709551615 135120254 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 2304 2065 91 271 0 2030 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9216

[startup+0.301399 s]
/proc/loadavg: 1.15 1.03 1.01 3/64 27182
/proc/meminfo: memFree=1217968/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=9348 CPUtime=0.29
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 2328 0 0 0 29 0 0 0 19 0 1 0 1144016326 9572352 2082 1992294400 134512640 135625496 4294956224 18446744073709551615 135120254 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 2337 2082 91 271 0 2063 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9348

[startup+0.701477 s]
/proc/loadavg: 1.15 1.03 1.01 3/64 27182
/proc/meminfo: memFree=1217968/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=9612 CPUtime=0.69
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 2390 0 0 0 68 1 0 0 23 0 1 0 1144016326 9842688 2144 1992294400 134512640 135625496 4294956224 18446744073709551615 135120254 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 2403 2144 91 271 0 2129 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9612

[startup+1.50163 s]
/proc/loadavg: 1.14 1.03 1.01 2/65 27183
/proc/meminfo: memFree=1209576/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=10008 CPUtime=1.49
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 2483 0 0 0 148 1 0 0 25 0 1 0 1144016326 10248192 2237 1992294400 134512640 135625496 4294956224 18446744073709551615 135120254 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 2502 2237 91 271 0 2228 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10008

[startup+3.10195 s]
/proc/loadavg: 1.14 1.03 1.01 2/65 27183
/proc/meminfo: memFree=1208872/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=10668 CPUtime=3.09
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 2661 0 0 0 308 1 0 0 25 0 1 0 1144016326 10924032 2415 1992294400 134512640 135625496 4294956224 18446744073709551615 135120254 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 2667 2415 91 271 0 2393 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10668

[startup+6.30158 s]
/proc/loadavg: 1.14 1.03 1.01 2/65 27183
/proc/meminfo: memFree=1207528/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=11856 CPUtime=6.29
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 2959 0 0 0 627 2 0 0 25 0 1 0 1144016326 12140544 2713 1992294400 134512640 135625496 4294956224 18446744073709551615 135120254 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 2964 2713 91 271 0 2690 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11856

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

[startup+7.10174 s]
/proc/loadavg: 1.13 1.03 1.01 2/65 27183
/proc/meminfo: memFree=1207208/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=12120 CPUtime=7.09
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 3014 0 0 0 707 2 0 0 25 0 1 0 1144016326 12410880 2768 1992294400 134512640 135625496 4294956224 18446744073709551615 134530524 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 3030 2768 91 271 0 2756 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 12120

[startup+7.50182 s]
/proc/loadavg: 1.13 1.03 1.01 2/65 27183
/proc/meminfo: memFree=1207208/2055920 swapFree=4176304/4192956
[pid=27182] ppid=27180 vsize=12120 CPUtime=7.48
/proc/27182/stat : 27182 (csat) R 27180 27182 26994 0 -1 4194304 3039 0 0 0 746 2 0 0 25 0 1 0 1144016326 12410880 2793 1992294400 134512640 135625496 4294956224 18446744073709551615 135120254 0 0 4096 0 0 0 0 17 1 0 0
/proc/27182/statm: 3030 2793 91 271 0 2756 0
Current children cumulated CPU time (s) 7.48
Current children cumulated vsize (KiB) 12120

Child status: 20
Real time (s): 7.59837
CPU time (s): 7.59684
CPU user time (s): 7.56485
CPU system time (s): 0.031995
CPU usage (%): 99.9799
Max. virtual memory (cumulated for all children) (KiB): 12120

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.56485
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3063
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= 2
involuntary context switches= 14

runsolver used 0.012998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node53 at 2009-04-03 01:05:38
IDJOB=1553320
IDBENCH=70759
IDSOLVER=517
FILE ID=node53/1553320-1238713538
PBS_JOBID= 9085305
Free space on /tmp= 66036 MiB

SOLVER NAME= CSat 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/bitverif/minxorminand/minxorminand032.cnf
COMMAND LINE= DIR/csat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1553320-1238713538/watcher-1553320-1238713538 -o /tmp/evaluation-result-1553320-1238713538/solver-1553320-1238713538 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/csat HOME/instance-1553320-1238713538.cnf

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

MD5SUM BENCH= 49dda3faa6676166ee2ccb89f6cd8ca0
RANDOM SEED=945235104

node53.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		: 3000.264
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		: 3000.264
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1218384 kB
Buffers:         93048 kB
Cached:         645840 kB
SwapCached:      10540 kB
Active:         214576 kB
Inactive:       536372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1218384 kB
SwapTotal:     4192956 kB
SwapFree:      4176304 kB
Dirty:            1932 kB
Writeback:           0 kB
Mapped:          17780 kB
Slab:            72572 kB
Committed_AS:  2774708 kB
PageTables:       1384 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= 66036 MiB
End job on node53 at 2009-04-03 01:05:46