Trace number 1563395

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? 2.40463 2.42289

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 benchmark51.5012
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-1563395-1238786135.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-1563395-1238786135/watcher-1563395-1238786135 -o /tmp/evaluation-result-1563395-1238786135/solver-1563395-1238786135 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1563395-1238786135.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 1.04 1.01 3/64 24848
/proc/meminfo: memFree=989512/2055920 swapFree=4175700/4192956
[pid=24848] ppid=24846 vsize=685060 CPUtime=0
/proc/24848/stat : 24848 (mxc-sat09) R 24846 24848 24654 0 -1 4194304 736 0 0 0 0 0 0 0 18 0 1 0 1151283049 701501440 722 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/24848/statm: 171265 728 46 166 0 171096 0

[startup+0.0336331 s]
/proc/loadavg: 1.15 1.04 1.01 3/64 24848
/proc/meminfo: memFree=989512/2055920 swapFree=4175700/4192956
[pid=24848] ppid=24846 vsize=685060 CPUtime=0.03
/proc/24848/stat : 24848 (mxc-sat09) R 24846 24848 24654 0 -1 4194304 5487 0 0 0 0 3 0 0 18 0 1 0 1151283049 701501440 5473 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/24848/statm: 171265 5479 46 166 0 171096 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 685060

[startup+0.101645 s]
/proc/loadavg: 1.15 1.04 1.01 3/64 24848
/proc/meminfo: memFree=989512/2055920 swapFree=4175700/4192956
[pid=24848] ppid=24846 vsize=685060 CPUtime=0.1
/proc/24848/stat : 24848 (mxc-sat09) R 24846 24848 24654 0 -1 4194304 16861 0 0 0 0 10 0 0 18 0 1 0 1151283049 701501440 16847 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/24848/statm: 171265 16854 46 166 0 171096 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 685060

[startup+0.301673 s]
/proc/loadavg: 1.15 1.04 1.01 3/64 24848
/proc/meminfo: memFree=989512/2055920 swapFree=4175700/4192956
[pid=24848] ppid=24846 vsize=685060 CPUtime=0.3
/proc/24848/stat : 24848 (mxc-sat09) R 24846 24848 24654 0 -1 4194304 50679 0 0 0 0 30 0 0 19 0 1 0 1151283049 701501440 50665 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/24848/statm: 171265 50671 46 166 0 171096 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 685060

[startup+0.701731 s]
/proc/loadavg: 1.15 1.04 1.01 3/64 24848
/proc/meminfo: memFree=989512/2055920 swapFree=4175700/4192956
[pid=24848] ppid=24846 vsize=685060 CPUtime=0.7
/proc/24848/stat : 24848 (mxc-sat09) R 24846 24848 24654 0 -1 4194304 119960 0 0 0 0 70 0 0 22 0 1 0 1151283049 701501440 119947 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/24848/statm: 171265 119953 46 166 0 171096 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 685060

[startup+1.50185 s]
/proc/loadavg: 1.15 1.04 1.01 2/65 24849
/proc/meminfo: memFree=303360/2055920 swapFree=4175700/4192956
[pid=24848] ppid=24846 vsize=1766432 CPUtime=1.49
/proc/24848/stat : 24848 (mxc-sat09) R 24846 24848 24654 0 -1 4194304 231139 0 0 0 25 124 0 0 25 0 1 0 1151283049 1808826368 231126 1992294400 134512640 135192793 4294956224 18446744073709551615 134527801 0 0 4096 0 0 0 0 17 1 0 0
/proc/24848/statm: 441608 231132 50 166 0 441439 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1766432

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

[startup+1.90192 s]
/proc/loadavg: 1.15 1.04 1.01 2/65 24849
/proc/meminfo: memFree=303360/2055920 swapFree=4175700/4192956
[pid=24848] ppid=24846 vsize=1766432 CPUtime=1.89
/proc/24848/stat : 24848 (mxc-sat09) R 24846 24848 24654 0 -1 4194304 296271 0 0 0 36 153 0 0 25 0 1 0 1151283049 1808826368 296257 1992294400 134512640 135192793 4294956224 18446744073709551615 134527828 0 0 4096 0 0 0 0 17 0 0 0
/proc/24848/statm: 441608 296257 50 166 0 441439 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 1766432

[startup+2.30327 s]
/proc/loadavg: 1.22 1.06 1.02 2/65 24849
/proc/meminfo: memFree=16192/2055920 swapFree=4175700/4192956
[pid=24848] ppid=24846 vsize=0 CPUtime=2.27
/proc/24848/stat : 24848 (mxc-sat09) R 24846 24848 24654 0 -1 4194308 347578 0 0 0 43 184 0 0 25 0 1 0 1151283049 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/24848/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 2.27
Current children cumulated vsize (KiB) 0

[startup+2.40252 s]
/proc/loadavg: 1.22 1.06 1.02 2/65 24849
/proc/meminfo: memFree=16192/2055920 swapFree=4175700/4192956
[pid=24848] ppid=24846 vsize=0 CPUtime=2.37
/proc/24848/stat : 24848 (mxc-sat09) R 24846 24848 24654 0 -1 4194308 347578 0 0 0 43 194 0 0 25 0 1 0 1151283049 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/24848/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 2.37
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 2.42289
CPU time (s): 2.40463
CPU user time (s): 0.436933
CPU system time (s): 1.9677
CPU usage (%): 99.2465
Max. virtual memory (cumulated for all children) (KiB): 1766432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.436933
system time used= 1.9677
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= 3
involuntary context switches= 29

runsolver used 0.007998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node30 at 2009-04-03 21:16:18
IDJOB=1563395
IDBENCH=70953
IDSOLVER=504
FILE ID=node30/1563395-1238786135
PBS_JOBID= 9085580
Free space on /tmp= 65844 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-1563395-1238786135/watcher-1563395-1238786135 -o /tmp/evaluation-result-1563395-1238786135/solver-1563395-1238786135 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1563395-1238786135.cnf

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

MD5SUM BENCH= c4aa2ddc60eee766fbdf95a32eed5b43
RANDOM SEED=580068513

node30.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		: 3000.260
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	: 5931.00
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		: 3000.260
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:        990056 kB
Buffers:         26492 kB
Cached:         944688 kB
SwapCached:      10876 kB
Active:         724016 kB
Inactive:       259964 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        990056 kB
SwapTotal:     4192956 kB
SwapFree:      4175700 kB
Dirty:          291292 kB
Writeback:           0 kB
Mapped:          18708 kB
Slab:            68008 kB
Committed_AS:  3429160 kB
PageTables:       1368 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= 65844 MiB
End job on node30 at 2009-04-03 21:16:21