Trace number 1774507

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 2009-03-10? 2.43263 2.44559

General information on the benchmark

NameAPPLICATIONS/c32sat/
post-cbmc-zfcp-2.8-u2-noholes.cnf
MD5SUMc4aa2ddc60eee766fbdf95a32eed5b43
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark59.403
Satisfiable
(Un)Satisfiability was proved
Number of variables10950109
Number of clauses32697150
Sum of the clauses size76320846
Maximum clause length65
Minimum clause length1
Number of clauses of size 12415
Number of clauses of size 221783823
Number of clauses of size 310907882
Number of clauses of size 41592
Number of clauses of size 5131
Number of clauses of size over 51307

Solver Data 

2.18/2.21	c starting MXC with:
2.18/2.21	c cnf_path = HOME/instance-1774507-1241307171.cnf
2.18/2.21	c restart_strategy = auto
2.18/2.21	c sign_strategy = cached
2.18/2.21	c use_preprocessing = -1
2.18/2.21	c output_implicant = 1
2.18/2.21	c timeout_seconds = 0
2.18/2.21	c error: out of memory
2.18/2.21	
2.18/2.21	s UNKNOWN

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: UNKNOWN

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1774507-1241307171/watcher-1774507-1241307171 -o /tmp/evaluation-result-1774507-1241307171/solver-1774507-1241307171 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1774507-1241307171.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: 1.51 1.13 1.04 3/64 27532
/proc/meminfo: memFree=278224/2055920 swapFree=4179820/4192956
[pid=27532] ppid=27530 vsize=685060 CPUtime=0
/proc/27532/stat : 27532 (mxc-sat09) R 27530 27532 27144 0 -1 4194304 734 0 0 0 0 0 0 0 18 0 1 0 158747543 701501440 720 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/27532/statm: 171265 726 46 166 0 171096 0

[startup+0.101112 s]
/proc/loadavg: 1.51 1.13 1.04 3/64 27532
/proc/meminfo: memFree=278224/2055920 swapFree=4179820/4192956
[pid=27532] ppid=27530 vsize=685060 CPUtime=0.09
/proc/27532/stat : 27532 (mxc-sat09) R 27530 27532 27144 0 -1 4194304 17601 0 0 0 0 9 0 0 18 0 1 0 158747543 701501440 17587 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/27532/statm: 171265 17593 46 166 0 171096 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 685060

[startup+0.20113 s]
/proc/loadavg: 1.51 1.13 1.04 3/64 27532
/proc/meminfo: memFree=278224/2055920 swapFree=4179820/4192956
[pid=27532] ppid=27530 vsize=685060 CPUtime=0.19
/proc/27532/stat : 27532 (mxc-sat09) R 27530 27532 27144 0 -1 4194304 35291 0 0 0 0 19 0 0 18 0 1 0 158747543 701501440 35277 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/27532/statm: 171265 35283 46 166 0 171096 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 685060

[startup+0.301147 s]
/proc/loadavg: 1.51 1.13 1.04 3/64 27532
/proc/meminfo: memFree=278224/2055920 swapFree=4179820/4192956
[pid=27532] ppid=27530 vsize=685060 CPUtime=0.29
/proc/27532/stat : 27532 (mxc-sat09) R 27530 27532 27144 0 -1 4194304 53023 0 0 0 0 29 0 0 19 0 1 0 158747543 701501440 53009 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/27532/statm: 171265 53017 46 166 0 171096 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 685060

[startup+0.702235 s]
/proc/loadavg: 1.51 1.13 1.04 3/64 27532
/proc/meminfo: memFree=278224/2055920 swapFree=4179820/4192956
[pid=27532] ppid=27530 vsize=685060 CPUtime=0.69
/proc/27532/stat : 27532 (mxc-sat09) R 27530 27532 27144 0 -1 4194304 121484 0 0 0 0 69 0 0 23 0 1 0 158747543 701501440 121470 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 0 0 0
/proc/27532/statm: 171265 121470 46 166 0 171096 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 685060

[startup+1.50137 s]
/proc/loadavg: 1.51 1.13 1.04 3/65 27533
/proc/meminfo: memFree=16264/2055920 swapFree=4179820/4192956
[pid=27532] ppid=27530 vsize=1766432 CPUtime=1.47
/proc/27532/stat : 27532 (mxc-sat09) R 27530 27532 27144 0 -1 4194304 228520 0 0 0 26 121 0 0 25 0 1 0 158747543 1808826368 228506 1992294400 134512640 135192793 4294956224 18446744073709551615 134527814 0 0 4096 0 0 0 0 17 1 0 0
/proc/27532/statm: 441608 228515 50 166 0 441439 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 1766432

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

[startup+1.60139 s]
/proc/loadavg: 1.51 1.13 1.04 3/65 27533
/proc/meminfo: memFree=16264/2055920 swapFree=4179820/4192956
[pid=27532] ppid=27530 vsize=1766432 CPUtime=1.58
/proc/27532/stat : 27532 (mxc-sat09) R 27530 27532 27144 0 -1 4194304 245053 0 0 0 29 129 0 0 25 0 1 0 158747543 1808826368 245040 1992294400 134512640 135192793 4294956224 18446744073709551615 134527801 0 0 4096 0 0 0 0 17 1 0 0
/proc/27532/statm: 441608 245049 50 166 0 441439 0
Current children cumulated CPU time (s) 1.58
Current children cumulated vsize (KiB) 1766432

[startup+2.00146 s]
/proc/loadavg: 1.51 1.13 1.04 3/65 27533
/proc/meminfo: memFree=16264/2055920 swapFree=4179820/4192956
[pid=27532] ppid=27530 vsize=1766432 CPUtime=1.98
/proc/27532/stat : 27532 (mxc-sat09) R 27530 27532 27144 0 -1 4194304 311924 0 0 0 40 158 0 0 25 0 1 0 158747543 1808826368 311911 1992294400 134512640 135192793 4294956224 18446744073709551615 134527828 0 0 4096 0 0 0 0 17 1 0 0
/proc/27532/statm: 441608 311920 50 166 0 441439 0
Current children cumulated CPU time (s) 1.98
Current children cumulated vsize (KiB) 1766432

[startup+2.40153 s]
/proc/loadavg: 1.51 1.13 1.04 2/65 27533
/proc/meminfo: memFree=15176/2055920 swapFree=4179860/4192956
[pid=27532] ppid=27530 vsize=0 CPUtime=2.38
/proc/27532/stat : 27532 (mxc-sat09) R 27530 27532 27144 0 -1 4194308 347578 0 0 0 45 193 0 0 25 0 1 0 158747543 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/27532/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 2.38
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 2.44559
CPU time (s): 2.43263
CPU user time (s): 0.45593
CPU system time (s): 1.9767
CPU usage (%): 99.4699
Max. virtual memory (cumulated for all children) (KiB): 1766432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.45593
system time used= 1.9767
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 347578
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= 23

runsolver used 0.007998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node67 at 2009-05-03 01:33:33
IDJOB=1774507
IDBENCH=70953
IDSOLVER=613
FILE ID=node67/1774507-1241307171
PBS_JOBID= 9225225
Free space on /tmp= 65568 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/c32sat/post-cbmc-zfcp-2.8-u2-noholes.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1774507-1241307171/watcher-1774507-1241307171 -o /tmp/evaluation-result-1774507-1241307171/solver-1774507-1241307171 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1774507-1241307171.cnf

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

MD5SUM BENCH= c4aa2ddc60eee766fbdf95a32eed5b43
RANDOM SEED=615713137

node67.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		: 3000.277
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		: 3000.277
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:        278640 kB
Buffers:         71128 kB
Cached:        1614296 kB
SwapCached:       7232 kB
Active:        1051652 kB
Inactive:       642536 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        278640 kB
SwapTotal:     4192956 kB
SwapFree:      4179820 kB
Dirty:          241640 kB
Writeback:           0 kB
Mapped:          14248 kB
Slab:            68992 kB
Committed_AS:   689732 kB
PageTables:       1444 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= 65568 MiB
End job on node67 at 2009-05-03 01:33:36