Trace number 1723353

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 1.56776 1.5691

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 benchmark1.13982
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 

1.49/1.56	c starting MXC with:
1.49/1.56	c cnf_path = HOME/instance-1723353-1240685426.cnf
1.49/1.56	c restart_strategy = auto
1.49/1.56	c sign_strategy = cached
1.49/1.56	c use_preprocessing = -1
1.49/1.56	c output_implicant = 1
1.49/1.56	c timeout_seconds = 0
1.49/1.56	c running SatELite... done
1.49/1.56	c 39151 vars eliminated
1.49/1.56	c received 10815 units and 46254 clauses from SatELite
1.49/1.56	c 49965 assignments made, starting to guess now
1.49/1.56	c ===================================[MXC]=====================================
1.49/1.56	c | Conflicts |                Clause Statistics                   |   Vars   |
1.49/1.56	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
1.49/1.56	c =============================================================================
1.49/1.56	c |         0 |       0   13906    32348        0        0     nan |    59265 |
1.49/1.56	c |       100 |       0   13910    32348       96     1050    13.1 |     9300 |
1.49/1.56	c |       210 |       0   13918    32344      196     1105    11.0 |     9299 |
1.49/1.56	c |       441 |       0   13929    32344      416     1220    11.7 |     9299 |
1.49/1.56	c |       805 |       0   13941    32282      724     1402    10.3 |     9287 |
1.49/1.56	c |      1315 |       0   14098    30179      956     1657     9.1 |     9070 |
1.49/1.56	c |      1407 |       0   14111    30179     1031     1703     9.0 |     7699 |
1.49/1.56	c ----- stats for thread 0 -----
1.49/1.56	c restarts: 11
1.49/1.56	c decisions: 5961
1.49/1.56	c propagations: 933452
1.49/1.56	c conflicts: 1407
1.49/1.56	c 1.559s elapsed
1.49/1.56	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-1723353-1240685426/watcher-1723353-1240685426 -o /tmp/evaluation-result-1723353-1240685426/solver-1723353-1240685426 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1723353-1240685426.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: 1.22 1.02 1.00 3/64 9694
/proc/meminfo: memFree=904216/2055920 swapFree=4192956/4192956
[pid=9694] ppid=9692 vsize=3752 CPUtime=0
/proc/9694/stat : 9694 (mxc-sat09) R 9692 9694 9480 0 -1 4194304 751 0 0 0 0 0 0 0 18 0 1 0 96569981 3842048 737 1992294400 134512640 135192793 4294956208 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/9694/statm: 938 744 46 166 0 769 0

[startup+0.102748 s]
/proc/loadavg: 1.22 1.02 1.00 3/64 9694
/proc/meminfo: memFree=904216/2055920 swapFree=4192956/4192956
[pid=9694] ppid=9692 vsize=21616 CPUtime=0.09
/proc/9694/stat : 9694 (mxc-sat09) R 9692 9694 9480 0 -1 4194304 4798 0 0 0 8 1 0 0 18 0 1 0 96569981 22134784 4782 1992294400 134512640 135192793 4294956208 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/9694/statm: 5404 4787 55 166 0 5235 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 21616

[startup+0.202755 s]
/proc/loadavg: 1.22 1.02 1.00 3/64 9694
/proc/meminfo: memFree=904216/2055920 swapFree=4192956/4192956
[pid=9694] ppid=9692 vsize=22412 CPUtime=0.19
/proc/9694/stat : 9694 (mxc-sat09) R 9692 9694 9480 0 -1 4194304 5730 0 0 0 17 2 0 0 18 0 1 0 96569981 22949888 4987 1992294400 134512640 135192793 4294956208 18446744073709551615 134567418 0 0 4096 0 0 0 0 17 1 0 0
/proc/9694/statm: 5603 4988 56 166 0 5434 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 22412

[startup+0.302764 s]
/proc/loadavg: 1.22 1.02 1.00 3/64 9694
/proc/meminfo: memFree=904216/2055920 swapFree=4192956/4192956
[pid=9694] ppid=9692 vsize=24788 CPUtime=0.3
/proc/9694/stat : 9694 (mxc-sat09) R 9692 9694 9480 0 -1 4194304 6369 0 0 0 27 3 0 0 19 0 1 0 96569981 25382912 5626 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/9694/statm: 6197 5626 56 166 0 6028 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 24788

[startup+0.7028 s]
/proc/loadavg: 1.22 1.02 1.00 3/64 9694
/proc/meminfo: memFree=904216/2055920 swapFree=4192956/4192956
[pid=9694] ppid=9692 vsize=33252 CPUtime=0.69
/proc/9694/stat : 9694 (mxc-sat09) R 9692 9694 9480 0 -1 4194304 8463 0 0 0 66 3 0 0 22 0 1 0 96569981 34050048 7720 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/9694/statm: 8313 7720 56 166 0 8144 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 33252

[startup+1.50187 s]
/proc/loadavg: 1.22 1.02 1.00 2/65 9695
/proc/meminfo: memFree=873936/2055920 swapFree=4192956/4192956
[pid=9694] ppid=9692 vsize=32452 CPUtime=1.49
/proc/9694/stat : 9694 (mxc-sat09) R 9692 9694 9480 0 -1 4194304 9217 0 0 0 145 4 0 0 25 0 1 0 96569981 33230848 7666 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/9694/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

[startup+1.50187 s]
/proc/loadavg: 1.22 1.02 1.00 2/65 9695
/proc/meminfo: memFree=873936/2055920 swapFree=4192956/4192956
[pid=9694] ppid=9692 vsize=32452 CPUtime=1.49
/proc/9694/stat : 9694 (mxc-sat09) R 9692 9694 9480 0 -1 4194304 9217 0 0 0 145 4 0 0 25 0 1 0 96569981 33230848 7666 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/9694/statm: 8113 7666 72 166 0 7944 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 32452

Child status: 20
Real time (s): 1.5691
CPU time (s): 1.56776
CPU user time (s): 1.51977
CPU system time (s): 0.047992
CPU usage (%): 99.9148
Max. virtual memory (cumulated for all children) (KiB): 34612

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.51977
system time used= 0.047992
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= 4

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node55 at 2009-04-25 20:50:26
IDJOB=1723353
IDBENCH=71697
IDSOLVER=504
FILE ID=node55/1723353-1240685426
PBS_JOBID= 9186695
Free space on /tmp= 66376 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-1723353-1240685426/watcher-1723353-1240685426 -o /tmp/evaluation-result-1723353-1240685426/solver-1723353-1240685426 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1723353-1240685426.cnf

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

MD5SUM BENCH= 5a0032960b52c5fb367771f030675e6c
RANDOM SEED=1718136561

node55.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		: 3000.240
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		: 3000.240
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:        904632 kB
Buffers:         94836 kB
Cached:         946108 kB
SwapCached:          0 kB
Active:         366288 kB
Inactive:       688544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        904632 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4132 kB
Writeback:           0 kB
Mapped:          23636 kB
Slab:            82524 kB
Committed_AS:   266164 kB
PageTables:       1360 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= 66376 MiB
End job on node55 at 2009-04-25 20:50:28