Trace number 1775277

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
MXC 2009-03-10UNSAT 1.57676 1.57805

General information on the benchmark

Nameeen-tip-uns-nusmv-t5.B.cnf
MD5SUM5a0032960b52c5fb367771f030675e6c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.14182
Satisfiable
(Un)Satisfiability was proved
Number of variables59265
Number of clauses170983
Sum of the clauses size413505
Maximum clause length23
Minimum clause length1
Number of clauses of size 123
Number of clauses of size 299418
Number of clauses of size 371541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 51

Solver Data 

1.49/1.57	c starting MXC with:
1.49/1.57	c cnf_path = HOME/instance-1775277-1241310811.cnf
1.49/1.57	c restart_strategy = auto
1.49/1.57	c sign_strategy = cached
1.49/1.57	c use_preprocessing = -1
1.49/1.57	c output_implicant = 1
1.49/1.57	c timeout_seconds = 0
1.49/1.57	c running SatELite... done
1.49/1.57	c 39151 vars eliminated
1.49/1.57	c received 10815 units and 46254 clauses from SatELite
1.49/1.57	c 49965 assignments made, starting to guess now
1.49/1.57	c ===================================[MXC]=====================================
1.49/1.57	c | Conflicts |                Clause Statistics                   |   Vars   |
1.49/1.57	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
1.49/1.57	c =============================================================================
1.49/1.57	c |         0 |       0   13906    32348        0        0     nan |    59265 |
1.49/1.57	c |       100 |       0   13910    32348       96     1050    13.1 |     9300 |
1.49/1.57	c |       210 |       0   13918    32344      196     1105    11.0 |     9299 |
1.49/1.57	c |       441 |       0   13929    32344      416     1220    11.7 |     9299 |
1.49/1.57	c |       805 |       0   13941    32282      724     1402    10.3 |     9287 |
1.49/1.57	c |      1315 |       0   14098    30179      956     1657     9.1 |     9070 |
1.49/1.57	c |      1407 |       0   14111    30179     1031     1703     9.0 |     7699 |
1.49/1.57	c ----- stats for thread 0 -----
1.49/1.57	c restarts: 11
1.49/1.57	c decisions: 5961
1.49/1.57	c propagations: 933452
1.49/1.57	c conflicts: 1407
1.49/1.57	c 1.568s elapsed
1.49/1.57	s UNSATISFIABLE

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-1775277-1241310811/watcher-1775277-1241310811 -o /tmp/evaluation-result-1775277-1241310811/solver-1775277-1241310811 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1775277-1241310811.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29323
/proc/meminfo: memFree=902272/2055920 swapFree=4192812/4192956
[pid=29323] ppid=29321 vsize=3752 CPUtime=0
/proc/29323/stat : 29323 (mxc-sat09) R 29321 29323 29143 0 -1 4194304 764 0 0 0 0 0 0 0 18 0 1 0 159108262 3842048 751 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/29323/statm: 938 757 46 166 0 769 0

[startup+0.0160969 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29323
/proc/meminfo: memFree=902272/2055920 swapFree=4192812/4192956
[pid=29323] ppid=29321 vsize=10656 CPUtime=0.01
/proc/29323/stat : 29323 (mxc-sat09) R 29321 29323 29143 0 -1 4194304 2260 0 0 0 0 1 0 0 18 0 1 0 159108262 10911744 2247 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/29323/statm: 2664 2249 53 166 0 2495 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 10656

[startup+0.101103 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29323
/proc/meminfo: memFree=902272/2055920 swapFree=4192812/4192956
[pid=29323] ppid=29321 vsize=21464 CPUtime=0.09
/proc/29323/stat : 29323 (mxc-sat09) R 29321 29323 29143 0 -1 4194304 4765 0 0 0 7 2 0 0 18 0 1 0 159108262 21979136 4749 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/29323/statm: 5366 4750 55 166 0 5197 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 21464

[startup+0.301124 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29323
/proc/meminfo: memFree=902272/2055920 swapFree=4192812/4192956
[pid=29323] ppid=29321 vsize=24656 CPUtime=0.29
/proc/29323/stat : 29323 (mxc-sat09) R 29321 29323 29143 0 -1 4194304 6350 0 0 0 26 3 0 0 19 0 1 0 159108262 25247744 5607 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/29323/statm: 6164 5608 56 166 0 5995 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 24656

[startup+0.701159 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 29323
/proc/meminfo: memFree=902272/2055920 swapFree=4192812/4192956
[pid=29323] ppid=29321 vsize=33252 CPUtime=0.69
/proc/29323/stat : 29323 (mxc-sat09) R 29321 29323 29143 0 -1 4194304 8461 0 0 0 65 4 0 0 23 0 1 0 159108262 34050048 7718 1992294400 134512640 135192793 4294956224 18446744073709551615 134746177 0 0 4096 0 0 0 0 17 1 0 0
/proc/29323/statm: 8313 7718 56 166 0 8144 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 33252

[startup+1.50123 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 29324
/proc/meminfo: memFree=873016/2055920 swapFree=4192812/4192956
[pid=29323] ppid=29321 vsize=32452 CPUtime=1.49
/proc/29323/stat : 29323 (mxc-sat09) R 29321 29323 29143 0 -1 4194304 9217 0 0 0 144 5 0 0 25 0 1 0 159108262 33230848 7666 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/29323/statm: 8113 7666 72 166 0 7944 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 32452

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

Child status: 20
Real time (s): 1.57805
CPU time (s): 1.57676
CPU user time (s): 1.51777
CPU system time (s): 0.058991
CPU usage (%): 99.9182
Max. virtual memory (cumulated for all children) (KiB): 34612

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.51777
system time used= 0.058991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9223
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= 2

runsolver used 0.004999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node61 at 2009-05-03 02:33:31
IDJOB=1775277
IDBENCH=71697
IDSOLVER=613
FILE ID=node61/1775277-1241310811
PBS_JOBID= 9225230
Free space on /tmp= 66528 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT_RACE06/een-tip-uns-nusmv-t5.B.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1775277-1241310811/watcher-1775277-1241310811 -o /tmp/evaluation-result-1775277-1241310811/solver-1775277-1241310811 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1775277-1241310811.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 5a0032960b52c5fb367771f030675e6c
RANDOM SEED=748549580

node61.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		: 3000.216
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		: 3000.216
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:        902688 kB
Buffers:         74292 kB
Cached:         986304 kB
SwapCached:          0 kB
Active:         126720 kB
Inactive:       947732 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        902688 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3588 kB
Writeback:           0 kB
Mapped:          23592 kB
Slab:            64836 kB
Committed_AS:   729964 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66528 MiB
End job on node61 at 2009-05-03 02:33:33