Trace number 1556843

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 33.3609 33.3724

General information on the benchmark

NameAPPLICATIONS/crypto/
md5gen/gus-md5-04.cnf
MD5SUM019984f9d84c315e8eec645fb9d169da
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.32634
Satisfiable
(Un)Satisfiability was proved
Number of variables68679
Number of clauses223994
Sum of the clauses size580546
Maximum clause length3
Minimum clause length1
Number of clauses of size 1129
Number of clauses of size 291178
Number of clauses of size 3132687
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

33.28/33.36	c starting MXC with:
33.28/33.36	c cnf_path = HOME/instance-1556843-1238750809.cnf
33.28/33.36	c restart_strategy = auto
33.28/33.36	c sign_strategy = cached
33.28/33.36	c use_preprocessing = -1
33.28/33.36	c output_implicant = 1
33.28/33.36	c timeout_seconds = 0
33.28/33.36	c running SatELite... done
33.28/33.36	c 40306 vars eliminated
33.28/33.36	c received 287 units and 161317 clauses from SatELite
33.28/33.36	c 40592 assignments made, starting to guess now
33.28/33.36	c ===================================[MXC]=====================================
33.28/33.36	c | Conflicts |                Clause Statistics                   |   Vars   |
33.28/33.36	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
33.28/33.36	c =============================================================================
33.28/33.36	c |         0 |       0    9812   151505        0        0     nan |    68679 |
33.28/33.36	c |       100 |       0    9838   151378       77     1050    51.7 |    28073 |
33.28/33.36	c |       210 |       0    9849   151378      175     1105   103.8 |    28063 |
33.28/33.36	c |       402 |       0    9870   151378      337     1201   106.7 |     9954 |
33.28/33.36	c ----- stats for thread 0 -----
33.28/33.36	c restarts: 2
33.28/33.36	c decisions: 3033
33.28/33.36	c propagations: 3713979
33.28/33.36	c conflicts: 402
33.28/33.36	c 33.356s elapsed
33.28/33.36	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-1556843-1238750809/watcher-1556843-1238750809 -o /tmp/evaluation-result-1556843-1238750809/solver-1556843-1238750809 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1556843-1238750809.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: 1.03 1.01 1.00 3/69 1341
/proc/meminfo: memFree=1319944/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=4892 CPUtime=0
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 800 0 0 0 0 0 0 0 18 0 1 0 1147742584 5009408 786 1992294400 134512640 135192793 4294956208 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 1223 793 46 166 0 1054 0

[startup+0.100796 s]
/proc/loadavg: 1.03 1.01 1.00 3/69 1341
/proc/meminfo: memFree=1319944/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=29700 CPUtime=0.09
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 5250 0 0 0 7 2 0 0 18 0 1 0 1147742584 30412800 5234 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 7425 5234 55 166 0 7256 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 29700

[startup+0.201803 s]
/proc/loadavg: 1.03 1.01 1.00 3/69 1341
/proc/meminfo: memFree=1319944/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=35348 CPUtime=0.19
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 6650 0 0 0 16 3 0 0 19 0 1 0 1147742584 36196352 6634 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 8837 6634 55 166 0 8668 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 35348

[startup+0.301812 s]
/proc/loadavg: 1.03 1.01 1.00 3/69 1341
/proc/meminfo: memFree=1319944/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=34880 CPUtime=0.29
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 7446 0 0 0 26 3 0 0 19 0 1 0 1147742584 35717120 6419 1992294400 134512640 135192793 4294956208 18446744073709551615 134567946 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 8720 6419 56 166 0 8551 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 34880

[startup+0.701848 s]
/proc/loadavg: 1.03 1.01 1.00 3/69 1341
/proc/meminfo: memFree=1319944/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=45864 CPUtime=0.69
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 10113 0 0 0 64 5 0 0 22 0 1 0 1147742584 46964736 9086 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 11466 9086 56 166 0 11297 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 45864

[startup+1.50192 s]
/proc/loadavg: 1.03 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1276608/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=63216 CPUtime=1.49
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 15714 0 0 0 142 7 0 0 25 0 1 0 1147742584 64733184 13644 1992294400 134512640 135192793 4294956208 18446744073709551615 134534332 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 15804 13644 72 166 0 15635 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 63216

[startup+3.10106 s]
/proc/loadavg: 1.03 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1264832/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=63480 CPUtime=3.09
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 15841 0 0 0 302 7 0 0 25 0 1 0 1147742584 65003520 13771 1992294400 134512640 135192793 4294956208 18446744073709551615 134552317 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 15870 13771 72 166 0 15701 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 63480

[startup+6.30134 s]
/proc/loadavg: 1.03 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1264448/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=63876 CPUtime=6.28
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 15944 0 0 0 621 7 0 0 25 0 1 0 1147742584 65409024 13874 1992294400 134512640 135192793 4294956208 18446744073709551615 134552331 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 15969 13874 72 166 0 15800 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 63876

[startup+12.7019 s]
/proc/loadavg: 1.02 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1263808/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=64404 CPUtime=12.69
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 16054 0 0 0 1261 8 0 0 25 0 1 0 1147742584 65949696 13984 1992294400 134512640 135192793 4294956208 18446744073709551615 134552291 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 16101 13984 72 166 0 15932 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 64404

[startup+25.502 s]
/proc/loadavg: 1.02 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1263744/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=64536 CPUtime=25.49
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 16095 0 0 0 2541 8 0 0 25 0 1 0 1147742584 66084864 14025 1992294400 134512640 135192793 4294956208 18446744073709551615 134552248 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 16134 14025 72 166 0 15965 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 64536

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

[startup+25.601 s]
/proc/loadavg: 1.02 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1263744/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=64536 CPUtime=25.59
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 16095 0 0 0 2551 8 0 0 25 0 1 0 1147742584 66084864 14025 1992294400 134512640 135192793 4294956208 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 16134 14025 72 166 0 15965 0
Current children cumulated CPU time (s) 25.59
Current children cumulated vsize (KiB) 64536

[startup+28.8013 s]
/proc/loadavg: 1.02 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1263680/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=64536 CPUtime=28.79
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 16102 0 0 0 2871 8 0 0 25 0 1 0 1147742584 66084864 14032 1992294400 134512640 135192793 4294956208 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 16134 14032 72 166 0 15965 0
Current children cumulated CPU time (s) 28.79
Current children cumulated vsize (KiB) 64536

[startup+30.4014 s]
/proc/loadavg: 1.02 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1263680/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=64536 CPUtime=30.38
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 16105 0 0 0 3030 8 0 0 25 0 1 0 1147742584 66084864 14035 1992294400 134512640 135192793 4294956208 18446744073709551615 134552288 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 16134 14035 72 166 0 15965 0
Current children cumulated CPU time (s) 30.38
Current children cumulated vsize (KiB) 64536

[startup+32.0066 s]
/proc/loadavg: 1.02 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1263616/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=64536 CPUtime=31.99
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 16108 0 0 0 3191 8 0 0 25 0 1 0 1147742584 66084864 14038 1992294400 134512640 135192793 4294956208 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 16134 14038 72 166 0 15965 0
Current children cumulated CPU time (s) 31.99
Current children cumulated vsize (KiB) 64536

[startup+32.8027 s]
/proc/loadavg: 1.02 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1263616/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=64536 CPUtime=32.78
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 16109 0 0 0 3270 8 0 0 25 0 1 0 1147742584 66084864 14039 1992294400 134512640 135192793 4294956208 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 16134 14039 72 166 0 15965 0
Current children cumulated CPU time (s) 32.78
Current children cumulated vsize (KiB) 64536

[startup+33.2017 s]
/proc/loadavg: 1.02 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1263616/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=64536 CPUtime=33.18
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 16110 0 0 0 3310 8 0 0 25 0 1 0 1147742584 66084864 14040 1992294400 134512640 135192793 4294956208 18446744073709551615 134551311 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 16134 14040 72 166 0 15965 0
Current children cumulated CPU time (s) 33.18
Current children cumulated vsize (KiB) 64536

[startup+33.3017 s]
/proc/loadavg: 1.02 1.01 1.00 2/70 1342
/proc/meminfo: memFree=1263616/2055920 swapFree=4171844/4192956
[pid=1341] ppid=1339 vsize=64536 CPUtime=33.28
/proc/1341/stat : 1341 (mxc-sat09) R 1339 1341 929 0 -1 4194304 16111 0 0 0 3320 8 0 0 25 0 1 0 1147742584 66084864 14041 1992294400 134512640 135192793 4294956208 18446744073709551615 134534326 0 0 4096 0 0 0 0 17 1 0 0
/proc/1341/statm: 16134 14041 72 166 0 15965 0
Current children cumulated CPU time (s) 33.28
Current children cumulated vsize (KiB) 64536

Child status: 20
Real time (s): 33.3724
CPU time (s): 33.3609
CPU user time (s): 33.2669
CPU system time (s): 0.093985
CPU usage (%): 99.9657
Max. virtual memory (cumulated for all children) (KiB): 64536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.2669
system time used= 0.093985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16115
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= 75

runsolver used 0.030995 second user time and 0.097985 second system time

The end

Launcher Data 

Begin job on node58 at 2009-04-03 11:26:49
IDJOB=1556843
IDBENCH=70827
IDSOLVER=504
FILE ID=node58/1556843-1238750809
PBS_JOBID= 9085400
Free space on /tmp= 66556 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/crypto/md5gen/gus-md5-04.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1556843-1238750809/watcher-1556843-1238750809 -o /tmp/evaluation-result-1556843-1238750809/solver-1556843-1238750809 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1556843-1238750809.cnf

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

MD5SUM BENCH= 019984f9d84c315e8eec645fb9d169da
RANDOM SEED=903479837

node58.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		: 3000.222
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		: 3000.222
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:       1320424 kB
Buffers:         99172 kB
Cached:         544492 kB
SwapCached:      11040 kB
Active:         235432 kB
Inactive:       421356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1320424 kB
SwapTotal:     4192956 kB
SwapFree:      4171844 kB
Dirty:            4732 kB
Writeback:           0 kB
Mapped:          17416 kB
Slab:            64260 kB
Committed_AS:  2783336 kB
PageTables:       1764 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= 66556 MiB
End job on node58 at 2009-04-03 11:27:22